Documents published in Scipedia

• A stabilized formulation for incompressible plasticity using linear triangles and tetrahedra

  M. Chiumenti, Q. Valverde, C. Agelet de Saracibar, M. Cervera

  International Journal of Plasticity (2004). 20 (8-9), pp. 1487-1504

  
  

  Abstract

  In this paper, a stabilized finite element method to deal with incompressibility in solid mechanics is presented. Both elastic and J2-plastic constitutive behavior have been considered. A mixed formulation involving pressure and displacement fields is used and a continuous linear interpolation is considered for both fields. To circumvent the Babuška–Brezzi condition a stabilization technique based on the orthogonal sub-scale method is introduced. The main advantage of the method is the possibility of using linear triangular or tetrahedral finite elements, which are easy to generate for real industrial applications. Results are compared with standard Galerkin and Q1P0 mixed formulations in either elastic or elasto-plastic incompressible problems.

  Abstract
  In this paper, a stabilized finite element method to deal with incompressibility in solid mechanics is presented. Both elastic and J2-plastic constitutive behavior have been [...]

  • 13
  •  read

• Softening, localization and stabilization: capture of discontinuous solutions in J2 plasticity

  M. Cervera, M. Chiumenti, C. Agelet de Saracibar

  Int. J. Numer. Anal. Meth. Geomech. (2004). 28 (5), pp. 373-393.

  
  

  Abstract

  This paper exploits the concept of stabilization techniques to improve the behaviour of mixed linear/linear simplicial elements (triangles and tetrahedra) in incompressible or nearly incompressible situations. Elasto‐J2‐plastic constitutive behaviour has been considered with linear and exponential softening. Two different stabilization methods are used to attain global stability of the corresponding discrete finite element formulation. Implementation and computational aspects are also discussed, showing that a robust application of the proposed formulation is feasible. Numerical examples show that the formulation derived is free of volumetric locking and spurious oscillations of the pressure. The results obtained do not suffer from spurious mesh‐size or mesh‐bias dependence, comparing very favourably with those obtained with the standard, non‐stabilized, approaches.

  Abstract
  This paper exploits the concept of stabilization techniques to improve the behaviour of mixed linear/linear simplicial elements (triangles and tetrahedra) in incompressible [...]

  • 11
  •  read

• On the constitutive modeling of coupled thermomechanical phase-change problems

  C. Agelet de Saracibar, M. Cervera, M. Chiumenti

  International Journal of Plasticity (2001). 17 (12), pp. 1565-1622.

  
  

  Abstract

  This paper deals with a thermodynamically consistent numerical formulation for coupled thermoplastic problems including phase-change phenomena and frictional contact. The final goal is to get an accurate, efficient and robust numerical model, able for the numerical simulation of industrial solidification processes. Some of the current issues addressed in the paper are the following. A fractional step method arising from an operator split of the governing differential equations has been used to solve the nonlinear coupled system of equations, leading to a staggered product formula solution algorithm. Nonlinear stability issues are discussed and isentropic and isothermal operator splits are formulated. Within the isentropic split, a strong operator split design constraint is introduced, by requiring that the elastic and plastic entropy, as well as the phase-change induced elastic entropy due to the latent heat, remain fixed in the mechanical problem. The formulation of the model has been consistently derived within a thermodynamic framework. All the material properties have been considered to be temperature dependent. The constitutive behavior has been defined by a thermoviscous/elastoplastic free energy function, including a thermal multiphase change contribution. Plastic response has been modeled by a J2 temperature dependent model, including plastic hardening and thermal softening. The constitutive model proposed accounts for a continuous transition between the initial liquid state, the intermediate mushy state and the final solid state taking place in a solidification process. In particular, a pure viscous deviatoric model has been used at the initial fluid-like state. A thermomecanical contact model, including a frictional hardening and temperature dependent coupled potential, is derived within a fully consistent thermodinamical theory. The numerical model has been implemented into the computational finite element code COMET developed by the authors. Numerical simulations of solidification processes show the good performance of the computational model developed.

  Abstract
  This paper deals with a thermodynamically consistent numerical formulation for coupled thermoplastic problems including phase-change phenomena and frictional contact. The [...]

  • 12
  •  read

• On the formulation of coupled thermoplastic problems with phase-change

  C. Agelet de Saracibar, M. Cervera, M. Chiumenti

  International Journal of Plasticity (1999). Vol. 15 (1), pp. 1-34

  
  

  Abstract

  This paper deals with a numerical formulation for coupled thermoplastic problems including phase-change phenomena. The final goal is to get an accurate, efficient and robust numerical model, allowing the numerical simulation of solidification processes in the metal casting industry. Some of the current issues addressed in the paper are the following. A fractional step method arising from an operator split of the governing differential equations has been used to solve the nonlinear coupled system of equations, leading to a staggered product formula solution algorithm. Nonlinear stability issues are discussed and isentropic and isothermal operator splits are formulated. Within the isentropic split, a strong operator split design constraint is introduced, by requiring that the elastic and plastic entropy, as well as the phase-change induced elastic entropy due to the latent heat, remain fixed in the mechanical problem. The formulation of the model has been consistently derived within a thermodynamic framework. The constitutive behavior has been defined by a thermoelastoplastic free energy function, including a thermal multiphase change contribution. Plastic response has been modeled by a J2 temperature dependent model, including plastic hardening and thermal softening. A brief summary of the thermomechanical frictional contact model is included. The numerical model has been implemented into the computational Finite Element code COMET developed by the authors. A numerical assessment of the isentropic and isothermal operator splits, regarding the nonlinear stability behavior, has been performed for weakly and strongly coupled thermomechanical problems. Numerical simulations of solidification processes show the performance of the computational model developed.

  Abstract
  This paper deals with a numerical formulation for coupled thermoplastic problems including phase-change phenomena. The final goal is to get an accurate, efficient and robust [...]

  • 7
  •  read

• Numerical modeling of friction stir welding processes

  M. Chiumenti, M. Cervera, C. Agelet de Saracibar, N. Dialami

  Comput. Methods Appl. Mech. Engrg., (2013). (preprint) Vol. 254, pp. 353-369

  
  

  Abstract

  This work describes the formulation adopted for the numerical simulation of the friction stir welding (FSW) process. FSW is a solid-state joining process (the metal is not melted during the process) devised for applications where the original metallurgical characteristics must be retained. This process is primarily used on aluminum alloys, and most often on large pieces which cannot be easily heat treated to recover temper characteristics. Heat is either induced by the friction between the tool shoulder and the work pieces or generated by the mechanical mixing (stirring and forging) process without reaching the melting point (solid-state process). To simulate this kind of welding process, a fully coupled thermo-mechanical solution is adopted. A sliding mesh, rotating together with the pin (ALE formulation), is used to avoid the extremely large distortions of the mesh around the tool in the so called stirring zone while the rest of the mesh of the sheet is fixed (Eulerian formulation). The orthogonal subgrid scale (OSS) technique is used to stabilize the mixed velocity–pressure formulation adopted to solve the Stokes problem. This stabilized formulation can deal with the incompressible behavior of the material allowing for equal linear interpolation for both the velocity and the pressure fields. The material behavior is characterized either by Norton–Hoff or Sheppard–Wright rigid thermo-visco-plastic constitutive models. Both the frictional heating due to the contact interaction between the surface of the tool and the sheet, and the heat induced by the visco-plastic dissipation of the stirring material have been taken into account. Heat convection and heat radiation models are used to dissipate the heat through the boundaries. Both the streamline-upwind/Petrov–Galerkin (SUPG) formulation and the OSS stabilization technique have been implemented to stabilize the convective term in the balance of energy equation. The numerical simulations presented are intended to show the accuracy of the proposed methodology and its capability to study real FSW processes where a non-circular pin is often used.

  Abstract
  This work describes the formulation adopted for the numerical simulation of the friction stir welding (FSW) process. FSW is a solid-state joining process (the metal is not [...]

  • 12
  •  read

• Finite element modeling of multi-pass welding and shaped metal deposition processes

  M. Chiumenti, M. Cervera, A. Salmi, C. Agelet de Saracibar, N. Dialami, K. Matsui

  Comput. Methods Appl. Mech. Engrg., (2010). Vol. 199 (37-40), pp. 2343-2359

  
  

  Abstract

  This paper describes the formulation adopted for the numerical simulation of the shaped metal deposition process (SMD) and the experimental work carried out at ITP Industry to calibrate and validate the proposed model. The SMD process is a novel manufacturing technology, similar to the multi-pass welding used for building features such as lugs and flanges on fabricated components (see Fig. 1a and b). A fully coupled thermo-mechanical solution is adopted including phase-change phenomena defined in terms of both latent heat release and shrinkage effects. Temperature evolution as well as residual stresses and distortions, due to the successive welding layers deposited, are accurately simulated coupling the heat transfer and the mechanical analysis. The material behavior is characterized by a thermo-elasto-viscoplastic constitutive model coupled with a metallurgical model. Nickel super-alloy 718 is the target material of this work. Both heat convection and heat radiation models are introduced to dissipate heat through the boundaries of the component. An in-house coupled FE software is used to deal with the numerical simulation and an ad-hoc activation methodology is formulated to simulate the deposition of the different layers of filler material. Difficulties and simplifying hypotheses are discussed. Thermo-mechanical results are presented in terms of both temperature evolution and distortions, and compared with the experimental data obtained at the SMD laboratory of ITP.

  Abstract
  This paper describes the formulation adopted for the numerical simulation of the shaped metal deposition process (SMD) and the experimental work carried out at ITP Industry [...]

  • 13
  •  read

• On the orthogonal subgrid scale pressure stabilization of finite deformation J2 plasticity

  C. Agelet de Saracibar, M. Chiumenti, Q. Valverde, M. Cervera

  Comput. Methods Appl. Mech. Engrg., (2006). Vol. 195 (9-12), pp. 1224-1251

  
  

  Abstract

  The use of stabilization methods is becoming an increasingly well-accepted technique due to their success in dealing with numerous numerical pathologies that arise in a variety of applications in computational mechanics. In this paper a multiscale finite element method technique to deal with pressure stabilization of nearly incompressibility problems in nonlinear solid mechanics at finite deformations is presented. A J2-flow theory plasticity model at finite deformations is considered. A mixed formulation involving pressure and displacement fields is used as starting point. Within the finite element discretization setting, continuous linear interpolation for both fields is considered. To overcome the Babuška–Brezzi stability condition, a multiscale stabilization method based on the orthogonal subgrid scale (OSGS) technique is introduced. A suitable nonlinear expression of the stabilization parameter is proposed. The main advantage of the method is the possibility of using linear triangular or tetrahedral finite elements, which are easy to generate and, therefore, very convenient for practical industrial applications. Numerical results obtained using the OSGS stabilization technique are compared with results provided by the P1 standard Galerkin displacements linear triangular/tetrahedral element, P1/P1 standard mixed linear displacements/linear pressure triangular/tetrahedral element and Q1/P0 mixed bilinear/trilinear displacements/constant pressure quadrilateral/hexahedral element for 2D/3D nearly incompressible problems in the context of a nonlinear finite deformation J2 plasticity model.

  Abstract
  The use of stabilization methods is becoming an increasingly well-accepted technique due to their success in dealing with numerous numerical pathologies that arise in a variety [...]

  • 4
  •  read

• Mixed linear/linear simplicial elements for incompressible elasticity and plasticity

  M. Cervera, M. Chiumenti, Q. Valverde, C. Agelet de Saracibar

  Comput. Methods Appl. Mech. Engrg., (2003). Vol. 192 (49-50), pp. 5249-5263

  
  

  Abstract

  This paper exploits the concept of orthogonal sub-grid scales to stabilize the behaviour of mixed linear/linear simplicial elements (triangles and tetrahedra) in incompressible or nearly incompressible situations. Both incompressible elastic and J2-plastic constitutive behaviours have been considered. The different assumptions and approximations used to derive the method are exposed. Implementation and computational aspects are also discussed, showing that a robust application of the proposed formulation is feasible. Numerical examples show that the elements derived are free of volumetric locking and spurious oscillations of the pressure, and that the results obtained compare favourably with those obtained with the Q1P0 quadrilateral.

  Abstract
  This paper exploits the concept of orthogonal sub-grid scales to stabilize the behaviour of mixed linear/linear simplicial elements (triangles and tetrahedra) in incompressible [...]

  • 8
  •  read

• A stabilized formulation for incompressible elasticity using linear displacement and pressure interpolations

  M. Chiumenti, Q. Valverde, C. Agelet de Saracibar, M. Cervera

  Comput. Methods Appl. Mech. Engrg., (2002). Vol. 191 (46), pp. 5253-5264

  
  

  Abstract

  In this paper a stabilized finite element method to deal with incompressibility in solid mechanics is presented. A mixed formulation involving pressure and displacement fields is used and a continuous linear interpolation is considered for both fields. To overcome the Babuška–Brezzi condition, a stabilization technique based on the orthogonal sub-scale method is introduced. The main advantage of the method is the possibility of using linear triangular or tetrahedral finite elements, which are easy to generate for real industrial applications. Results are compared with standard Galerkin and Q1P0 mixed formulations for nearly incompressible problems in the context of linear elasticity.

  Abstract
  In this paper a stabilized finite element method to deal with incompressibility in solid mechanics is presented. A mixed formulation involving pressure and displacement fields [...]

  • 7
  •  read

• Thermo‐mechanical analysis of industrial solidification processes

  M. Cervera, C. Agelet de Saracibar, M. Chiumenti

  Int. J. Numer. Meth. Engng. (1999). Vol. 46 (9), pp. 1575-1591

  
  

  Abstract

  The paper presents an up‐to‐date finite element numerical model for fully coupled thermo‐mechanical problems, focussing in the simulation of solidification processes of industrial metal parts. The proposed constitutive model is defined by a thermo‐visco‐elasto‐(visco)plastic free energy function which includes a contribution for thermal multiphase changes. Mechanical and thermal properties are assumed to be temperature‐dependent, and viscous‐like strains are introduced to account for the variation of the elastic moduli during the cooling process. The continuous transition between the initial fluid‐like and the final solid‐like behaviour of the part is modelled by considering separate viscous and elasto‐plastic responses as a function of the solid fraction. Thermo‐mechanical contact conditions between the mould and the part are specifically considered, assuming that the heat flux is a function of the normal pressure and the thermal and mechanical gaps. A fractional step method arising from an operator split of the governing equations is used to solve the non‐linear coupled system of equations, leading to a staggered product formula solution algorithm suitable for large‐scale computations. Representative simulations of industrial solidification processes are shown, and comparison of computed results using the proposed model with available experimental data is given.

  Abstract
  The paper presents an up‐to‐date finite element numerical model for fully coupled thermo‐mechanical problems, focussing in the simulation of solidification processes [...]

  • 12
  •  read

Articles (Documents not available in Scipedia)

• Challenges in thermo-mechanical analysis of Friction Stir Welding processes

  N. Dialami, M. Chiumenti, M. Cervera, C. Agelet de Saracibar

  Archives of Computational Methods in Engineering Volume 24, Issue 1, January 2017, Pages 189–225. First published on-line: 19 January 2016. http://dx.doi.org/10.1007/s11831-015-9163-y

• Local-global strategy for the prediction of residual stresses in FSW processes

  N. Dialami, M. Cervera, M. Chiumenti, C. Agelet de Saracibar

  International Journal of Advanced Manufacturing Technology Volume 88, Issue 9, February 2017, Pages 3099–3111. First published on-line: 14 June 2016. http://dx.doi.org/10.1007/s00170-016-9016-3

• A fast and accurate two-stage strategy to evaluate the effect of the pin tool profile on metal flow, torque and forces in friction stir welding

  N. Dialami, M. Cervera, M. Chiumenti, C. Agelet de Saracibar

  International Journal of Mechanical Sciences Volume 122, March 2017, Pages 215-227. Available on-line: 16 January 2017. http://dx.doi.org/10.1016/j.ijmecsci.2016.12.016

• 3D Numerical models of FSW processes with non-cylindrical pin

  P. Bussetta, N. Dialami, M. Chiumenti, C. Agelet de Saracibar, M. Cervera, J.P. Ponthot

  Advances in Materials and Processing Technologies Volume 1, Issue 3-4, January 2016, Pages 275-287. First published on-line: 1 February 2016. http://dx.doi.org/10.1080/2374068X.2015.1121035

• Numerical modeling of the electron beam welding process and its experimental validation

  M. Chiumenti, M. Cervera, N. Dialami, B. Wu, L. Jinwei, C. Agelet de Saracibar

  Finite Elements in Analysis and Design Volume 121, 15 November 2016, Pages 118–133. First published on-line: 20 September 2016. http://dx.doi.org/10.1016/j.finel.2016.07.003

• 3D Numerical models using a fluid or a solid formulation of FSW processes with a non-cylindrical pin

  P. Bussetta, N. Dialami, M. Chiumenti, C. Agelet de Saracibar, M. Cervera, R. Boman, J.P. Ponthot

  Special issue on Simulation Techniques for Process Modeling Guest Editors: Ton van den Boogaard, Stefanie Reese Advanced Modeling and Simulation in Engineering Sciences Volume 2, Article 27, December 2015. First published on-line: 18 November 2015. http://dx.doi.org/10.1186/s40323-015-0048-2

• Software solutions for ICME

  G.J. Schmitz, A. Engstrom, R. Bernhardt, U. Prahl, L. Adam, J. Seyfarth, M. Apel, C. Agelet de Saracibar, P. Korzhavyi, J. Agren, B. Patzak

  The Journal of The Minerals, Metals & Materials Society (TMS) Volume 68, Issue 1, January 2016, Pages 70-76. First published on-line: 30 November 2015. http://dx.doi.org/10.1007/s11837-015-1718-8

• Computational modeling and sub-grid scale stabilization of incompressibility and convection in the numerical simulation of friction stir welding processes

  C. Agelet de Saracibar, M. Chiumenti, M. Cervera, N. Dialami, A. Seret

  Archives of Computational Methods in Engineering Volume 21, Issue 1, March 2014, Pages 3-37. First published on-line: 2 February 2014. http://dx.doi.org/10.1007/s11831-014-9094-z

• A direct elimination algorithm for quasi-static and dynamic contact problems

  D. Di Capua, C. Agelet de Saracibar

  Finite Elements in Analysis and Design Volume 93, Issue 1, January 2015, Pages 107-125. First published on-line: 8 October 2014. http://dx.doi.org/10.1016/j.finel.2014.09.001

• An apropos kinematic framework for the numerical modeling of friction stir welding

  N. Dialami, M. Chiumenti, M. Cervera, C. Agelet de Saracibar

  Computers & Structures Volume 117, February 2013, Pages 48-57. First published on-line: 4 January 2013. http://dx.doi.org/10.1016/j.compstruc.2012.12.006

• A numerical model for the simulation of precipitates dissolution of hardened aluminium alloys using neural networks

  C. Agelet de Saracibar, R. López, B. Ducoeur, M. Chiumenti, B. de Meester

  Revista Internacional de Métodos Numéricos para Cálculo y Diseño en Ingeniería Volume 29, Issue 1, January-March 2013, Pages 29-37. First published on-line: 22 February 2013. http://dx.doi.org/10.1016/j.rimni.2012.02.003

• Comparison of a fluid and a solid approach for the numerical simulation of friction stir welding with a non-cylindrical pin

  P. Bussetta, N. Dialami, R. Boman, M. Chiumenti, C. Agelet de Saracibar, M. Cervera, J.P. Ponthot

  Steel Research International Volume 85, Issue 6, June 2014, Pages 968-979. First published on-line: 13 December 2013. http://dx.doi.org/10.1002/srin.201300182

• Material flow visualization in friction stir welding via particle tracing

  N. Dialami, M. Chiumenti, M. Cervera, C. Agelet de Saracibar, J.P. Ponthot

  International Journal of Material Forming Volume 8, Issue 2, 1 April 2015, Pages 167-181. First published on-line: 20 December 2013. http://dx.doi.org/10.1007/s12289-013-1157-4

• Numerical modeling of friction stir welding processes

  M. Chiumenti, M. Cervera, C. Agelet de Saracibar, N. Dialami

  Computer Methods in Applied Mechanics and Engineering Volume 254, February 2013, Pages 353-369. First published on-line: 10 October 2012. http://dx.doi/org/10.1016/j.cma.2012.09.013

• Modelado termomecánico del proceso de friction stir welding utilizando la geometría real de la herramienta

  D. Santiago, G. Lombera, S. Urquiza, C. Agelet de Saracibar, M. Chiumenti

  Revista Internacional de Métodos Numéricos para Cálculo y Diseño en Ingeniería Volume 26, Issue 4, 2010, Pages 293-303

• Finite element modeling of multi-pass welding and shaped metal deposition processes

  M. Chiumenti, M. Cervera, A. Salmi, C. Agelet de Saracibar, N. Dialami, K. Matsui

  Computer Methods in Applied Mechanics and Engineering Volume 199, Issues 37-40, 1 August 2010, Pages 2343-2359. First published on-line: 14 April 2010. http://dx.doi.org/10.1016/j.cma.2010.02.018

• Modeling precipitate dissolution in hardened aluminium alloys using neural networks

  R. López, B. Ducoeur, M. Chiumenti, B. de Meester, C. Agelet de Saracibar

  International Journal of Material Forming Volume 1, Issue 1 Supplement, April 2008, Pages 1291-1294. First published on-line: April 2008. http://dx.doi.org/10.1007/s12289-008-0139-4

• On the numerical modeling of the thermomechanical contact for metal casting analysis

  M. Chiumenti, C. Agelet de Saracibar, M. Cervera

  Journal of Heat Transfer Volume 130, Issue 6, 23 April 2008, Art. No. 061301.1-10. First published on-line: 23 April 2008. http://dx.doi.org/10.1115/1.2897923

• Current developments on the coupled thermomechanical computational modeling of metal casting processes

  C. Agelet de Saracibar, M. Chiumenti, M. Cervera

  Computer Methods in Materials Science Volume 6, Issues 1-2, 2006, Pages 15-25

• Formulación estabilizada de elementos finitos triangulares y tetraédricos para problemas de incompresibilidad en grandes deformaciones

  Q. Valverde, M. Chiumenti, C. Agelet de Saracibar, M. Cervera

  Revista Internacional de Métodos Numéricos para Cálculo y Diseño en Ingeniería Volume 22, Issue 3, 2006, Pages 335-348

• Discrete element modelling and simulation of sand mould manufacture for the lost foam process

  J. Rojek, F. Zarate, C. Agelet de Saracibar, C. Gilbourne, P. Verdot

  International Journal for Numerical Methods in Engineering Volume 62, Issue 11, 21 March 2005, Pages 1421-1441. First published on-line: 1 December 2004. http://dx.doi.org/10.1002/nme.1221

• Formulación estabilizada de elementos finitos triangulares y tetraédricos para problemas de incompresibilidad en deformaciones infinitesimales

  Q. Valverde, M. Chiumenti, M. Cervera, C. Agelet de Saracibar

  Revista Internacional de Métodos Numéricos para Cálculo y Diseño en Ingeniería Volume 21, Issue 4, 2005, Pages 345-363

• On the orthogonal subgrid scale pressure stabilization of finite deformation J2 plasticity

  C. Agelet de Saracibar, M. Chiumenti, Q. Valverde, M. Cervera

  Computer Methods in Applied Mechanics and Engineering Volume 195, Issues 9-12, 1 February 2006, Pages 1224-1251. First published on-line: 15 June 2005. http://dx.doi.org/10.1016/j.cma.2005.04.007

• A stabilized formulation for incompressible plasticity using linear triangles and tetrahedra

  M. Chiumenti, Q. Valverde, C. Agelet de Saracibar, M. Cervera

  International Journal of Plasticity Volume 20, Issues 8-9, August-September 2004, Pages 1487-1504. First published on-line: 19 December 2003. http://dx.doi.org/10.1016/j.ijplas.2003.11.009

• Shear band localization via local J2 continuum damage mechanics

  M. Cervera, M. Chiumenti, C. Agelet de Saracibar

  Computer Methods in Applied Mechanics and Engineering Volume 193, Issues 9-11, 5 March 2004, Pages 849-880. First published on-line: 28 January 2004. http://dx.doi.org/10.1016/j.cma.2003.11.009

• Softening, localization and stabilization: Capture of discontinuous solutions in J2 plasticity

  M. Cervera, M. Chiumenti, C. Agelet de Saracibar

  International Journal for Numerical and Analytical Methods in Geomechanics Volume 28, Issue 5, 25 April 2004, Pages 373-393. First published on-line: 14 April 2004. http://dx.doi.org/10.1002/nag.341

• Mixed linear/linear simplicial elements for incompressible elasticity and plasticity

  M. Cervera, M. Chiumenti, Q. Valverde, C. Agelet de Saracibar

  Computer Methods in Applied Mechanics and Engineering Volume 192, Issues 49-50, 5 December 2003, Pages 5249-5263. First published on-line: 8 October 2003. http://dx.doi.org/10.1016/j.cma.2003.07.007

• A stabilized formulation for incompressible elasticity using linear displacement and pressure interpolations

  M. Chiumenti, Q. Valverde, C. Agelet de Saracibar, M. Cervera

  Computer Methods in Applied Mechanics and Engineering Volume 191, Issue 46, 8 November 2002, Pages 5253-5264. First published on-line: 22 October 2002. http://dx.doi.org/10.1016/S0045-7825(02)00443-7

• On the constitutive modeling of coupled thermomechanical phase-change problems

  C. Agelet de Saracibar, M. Cervera, M. Chiumenti

  Special Issue on Computational Modeling of Forming Processes International Journal of Plasticity Volume 17, Issue 12, December 2001, Pages 1565-1622. First published on-line: 16 October 2001. http://dx.doi.org/10.1016/S0749-6419(00)00094-2

• On the formulation of coupled thermoplastic problems with phase-change

  C. Agelet de Saracibar, M. Cervera, M. Chiumenti

  International Journal of Plasticity Volume 15, Issue 1, March 1999, Pages 1-34. First published on-line: 10 March 1999. http://dx.doi.org/10.1016/S0749-6419(98)00055-2

• On the numerical modeling of frictional wear phenomena

  C. Agelet de Saracibar, M. Chiumenti

  Computer Methods in Applied Mechanics and Engineering Volume 177, Issues 3-4, 20 July 1999, Pages 401-426. First published on-line: 30 May 2000. http://dx.doi.org/10.1016/S0045-7825(98)00390-9

• Thermo-mechanical analysis of industrial solidification processes

  M. Cervera, C. Agelet de Saracibar, M. Chiumenti

  International Journal for Numerical Methods in Engineering Volume 46, Issue 9, 30 November 1999, Pages 1575-1591. First published on-line: 19 October 1999. http://dx.doi.org/10.1002/(SICI)1097-0207(19991130)46:9<1575::AID-NME713>3.0.CO;2-D

• Numerical analysis of coupled thermomechanical frictional contact problems. Computational model and applications

  C. Agelet de Saracibar

  Archives of Computational Methods in Engineering Volume 5, Issue 3, September 1998, Pages 243-301

• A new frictional time integration algorithm for large slip multi-body frictional contact problems

  C. Agelet de Saracibar

  Computer Methods in Applied Mechanics and Engineering Volume 142, Issues 3-4, 30 March 1997, Pages 303-334. First published on-line: 6 May 1999. http://dx.doi.org/10.1016/S0045-7825(96)01133-4

• Comparative study on sheet metal forming processes by numerical modelling and experiment

  W. Sosnowski, E. Oñate, C. Agelet de Saracibar

  Journal of Materials Processing Technology Volume 34, Issues 1-4, September 1992, Pages 109-116. First published on-line: 27 February 2003. http://dx.doi.org/10.1016/0924-0136(92)90096-B

• Análisis por elementos finitos de procesos de embutición de chapa mediante un modelo viscoplástico con degradación por huecos

  E. Oñate, C. Agelet de Saracibar, J.B. Dalin

  Revista Internacional de Métodos Numéricos para Cálculo y Diseño en Ingeniería Volume 6, Issue 1, 1990, Pages 7-23

• Finite element analysis of sheet metal forming problems using a selective viscous bending/membrane formulation

  E. Oñate, C. Agelet de Saracibar

  International Journal for Numerical Methods in Engineering Volume 30, Issue 8, December 1990, Pages 1577-1593. First published on-line: 24 June 2005. http://dx.doi.org/10.1002/nme.1620300815

• Plastic and viscoplastic flow of void‐containing metals. Applications to axisymmetric sheet forming problems

  E. Oñate, M. Kleiber, C. Agelet de Saracibar

  International Journal for Numerical Methods in Engineering Volume 25, Issue 1, January 1988, Pages 227-251. First published on-line: 23 June 2005. http://dx.doi.org/10.1002/nme.1620250118

Books, book chapters and edited books (Documents not available in Scipedia)

• Continuum Mechanics for Engineers: Theory and Problems

  X. Oliver, C. Agelet de Saracibar

  Barcelona, Second Edition, 2017, 536 pp DOI: 10.13140/RG.2.2.25821.20961

• Numerical Methods

  C. Agelet de Saracibar, R. Boman, P. Bussetta, J.C. Cajas, M. Cervera, M. Chiumenti, A. Coll, P. Dadvand, J. Hernández, G. Houzeaux, M.A. Pasenau de Riera, J.P. Ponthot

  in G.J. Schmitz, U. Prahl (Eds.), Handbook of Software Solutions for ICME, Chapter 7 Wiley, November 2016, 632 pages, pp. 487-532 ISBN: 978-3-527-33902-0

• Local and Global Approaches to Friction Stir Welding

  N. Dialami, M. Chiumenti, M. Cervera, C. Agelet de Saracibar

  Monograph, M157, CIMNE, Barcelona, January 2016, 93 pp. ISBN 978-84-945077-0-0

• Shaped Metal Deposition Processes

  C. Agelet de Saracibar, A. Lundbäck, M. Chiumenti, M. Cervera

  in R.B. Hetnarski (Ed.), Encyclopedia of Thermal Stresses Springer Dordrecht, Heidelberg, New York, London, 2014, pp. 4346-4355 Chapter DOI: 10.1007/978-94-007-2739-7_808 ISBN: 978-94-007-2738-0 (Print) 978-94-007-2739-7 (e-Book)

• Numerical Simulation and Visualization of Material Flow in Friction Stir Welding via Particle Tracing

  N. Dialami, M. Chiumenti, M. Cervera, C. Agelet de Saracibar, J.P. Ponthot, P. Bussetta

  in S. Idelsohn (Ed.), Numerical Simulations of Coupled Problems in Engineering, Part III, Chapter 7 Computational Methods, Vol. 33, Springer, 2014, pp. 157-169 Chapter DOI: 10.1007/978-3-319-06136-8_7 ISBN: 978-3-319-06135-1 (Print) 978-3-319-06136-8 (Online)

• On the Computational Modeling and Numerical Simulation of FSW Processes

  C. Agelet de Saracibar, M. Chiumenti, M. Cervera, N. Dialami, D. Santiago, G. Lombera

  Monograph CMFP 3, CIMNE, Barcelona, January 2012, 46 pp. ISBN 84-939640-0-9

• Thermo-Mechanical Contact in Casting Analysis

  M. Chiumenti, C. Agelet de Saracibar, M. Cervera

  in J.L. Pérez-Aparicio (Ed.), Practical Applications Using Computational Contact Mechanics TCN, Trento, 2006, pp. 107-142 ISBN: 88-95176-01-4

• Mecánica de Medios Continuos para Ingenieros

  X. Oliver, C. Agelet de Saracibar

  Ediciones UPC, Barcelona, Spain, 3ª Edición, 2005, 329 pp. ISBN 84-8301-582-X

• On the Orthogonal Sub-grid Scale Pressure Stabilization of Small and Finite Deformation J2 Plasticity

  C. Agelet de Saracibar, M. Chiumenti, M. Cervera, Q. Valverde

  Monograph CMFP 2, CIMNE, Barcelona, November 2004, 76 pp. ISBN 84-95999-62-5

• Simulación Numérica de Problemas Termomecánicos

  C. Agelet de Saracibar

  Monografía M75, CIMNE, Barcelona, Julio 2003, 178 pp. ISBN 84-95999-31-5

• A Mixed Finite Element Formulation for Incompressibility using Linear Displacement and Pressure Interpolations

  D. Christ, M. Cervera, M. Chiumenti, C. Agelet de Saracibar

  Monograph M77, CIMNE, Barcelona, July 2003, 71 pp. ISBN 84-95999-35-8

• Shear Band Localization via Local J2 Continuum Damage Mechanics

  M. Cervera, M. Chiumenti, C. Agelet de Saracibar

  Monograph M78, CIMNE, Barcelona, July 2003, 60 pp. ISBN 84-95999-36-6

• Mecánica de Medis Continus per a Enginyers

  X. Oliver, C. Agelet de Saracibar

  Ediciones UPC, Barcelona, Spain, 1ª Edición, 2003, 334 pp. ISBN 84-8301-719-9

• Elementos Estabilizados de Bajo Orden en Mecánica de Sólidos

  Q. Valverde, C. Agelet de Saracibar, M. Cervera, M. Chiumenti

  Monografía M69, CIMNE, Barcelona, Diciembre 2002, 214 pp. ISBN 84-95999-16-1

• Mecánica de Medios Continuos para Ingenieros

  X. Oliver, C. Agelet de Saracibar

  Editorial Alfaomega, Mexico, 1ª Edición, 2002, 348 pp. ISBN 970-15-0778-9

• Constitutive modeling and numerical analysis of thermomechanical phase-change systems

  M. Chiumenti, C. Agelet de Saracibar, M. Cervera

  Monograph M48, CIMNE, Barcelona, 1999, 250 pp. ISBN 84-89925-39-9

• Numerical Modeling of Sheet Metal Forming Problems

  E. Oñate, C. Agelet de Saracibar

  in P. Hartley, I. Pillinger, C.E.N. Sturgess (Eds.), Numerical Modeling of Material Deformation Processes: Research, Developments and Applications Springer-Verlag, London, 1992, pp. 318-357 ISBN: 978-1-4471-1747-6

• Modelado numérico de procesos de conformado de láminas metálicas

  C. Agelet de Saracibar, E. Oñate

  Monografía M8, CIMNE, Barcelona, 1991, 300 pp. ISBN 84-87867-07-3

Conference papers and presentations (Documents not available in Scipedia)

• Master Course on Computational Mechanics - Continuum Mechanics

  C. Agelet de Saracibar

  Master Course on Computational Mechanics, CIMNE, UPC BarcelonaTech, Barcelona, Spain, 2016

• On the numerical simulation of Additive Manufacturing processes

  M. Chiumenti, M. Cervera, N. Dialami, C. Agelet de Saracibar, W. Huang, X. Lin, L. Wei, Y. Zheng, L. Ma

  ICOMP 2016, International Conference on Computational Methods in Manufacturing Processes, Liège, Belgium, 18-20 May 2016

• A Direct Elimination Algorithm (DEA) for full stick and frictionless, quasi-static and dynamic contact problems

  C. Agelet de Saracibar, D. Di Capua

  PANACM 2015, 1st Pan-American Congress on Computational Mechanics, Buenos Aires, Argentina, 27-29 April 2015