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• The use of particle methods for the simulations of additive manufacturing processes

  P. Wriggers

  Videos of Plenary Lectures presented at VI International Conference on Particle-Based Methods (PARTICLES 2019).

  
  

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• Massively parallel methods for immersed boundary simulations of particles in viscoelastic fluids

  E. Shaqfeh

  Videos of Plenary Lectures presented at VI International Conference on Particle-Based Methods (PARTICLES 2019).

  
  

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• Particle scale modelling in soil mechanics: Stiffness, strength, and seepage

  C. O´Sullivan

  Videos of Plenary Lectures presented at VI International Conference on Particle-Based Methods (PARTICLES 2019).

  
  

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• Coupled plastic-damaged model

  B. Luccioni, S. Oller, R. Danesi

  Comput. Methods Appl. Mech. Engrg., (1996). Vol. 129 (1-2), pp. 81-89

  
  

  Abstract

  A constitutive model that couples plasticity and damage is presented. The model is thermodynamically consistent and comes from a generalization of classical plasticity theory and isotropic damage theory of Kachanov. Coupling between plasticity and damage is achieved through a simultaneous solution of the plastic and the damage problem. After a description of the model, a numerical algorithm for the integration of the resulting constitutive equations is presented. It is an Euler Backward type of algorithm that is particularly suitable to solve plain stress non-linear problems with a 2D finite element program. The consistent stiffness matrix is also derived. The paper is completed with some application examples that show that the model presented accurately reproduces the behaviour of elastic-plastic-damaged materials.

  Abstract
  A constitutive model that couples plasticity and damage is presented. The model is thermodynamically consistent and comes from a generalization of classical plasticity theory [...]

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• Is particle and mesh a promissory combination for stable and high order schemes

  N. Nigro

  Videos of Plenary Lectures presented at VI International Conference on Particle-Based Methods (PARTICLES 2019).

  
  

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• Discrete element modelling in granular mechanics, Recent breakthroughs

  F. Darve

  Videos of Plenary Lectures presented at VI International Conference on Particle-Based Methods (PARTICLES 2019).

  
  

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• The bonded DEM. Strength and weakness

  M. Celigueta

  Videos of Plenary Lectures presented at VI International Conference on Particle-Based Methods (PARTICLES 2019).

  
  

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• A plasticity model for simulation of industrial powder compaction processes

  J. Oliver, S. Oller, J. Cante

  Int. J. Solids and Structures (1996). Vol. 33 (20-22), 3161-3178

  
  

  Abstract

  A constitutive model, based on large strain plasticity, for simulation of industrial powder compaction processes is presented. The elastic response is stated in terms of a hyperelastic model based on a hookean elastic free energy. Plastic response is defined in terms of a two parameter yield surface that evolves in terms of the relative density. Two different flow rules are considered and tested in front of some available experimental results. Application to the simulation of an actual powder-metallurgy compaction process is also shown.

  Abstract
  A constitutive model, based on large strain plasticity, for simulation of industrial powder compaction processes is presented. The elastic response is stated in terms of a [...]

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• Granular flows and particle-laden fluids interacting with thin flexible structures

  E. Campello

  Videos of Plenary Lectures presented at VI International Conference on Particle-Based Methods (PARTICLES 2019).

  
  

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• Evaluation of the damage degree in buildings structures subjected to earthquakes

  A. Barbat, A. Hanganu, S. Oller

  Revue de méchanique appliquée (1994). Vol. 39 (1), pp. 23-36

  
  

  Abstract

  This paper represents an overview of the investigation pursued by the authors in the field of damage evaluation of concrete structures. A procedure to evaluate the damage of reinforced concrete structures subjected to static and dynamic actions has been developed, which is based on a local damage constitutive model using Kachanov’s theory. The constitutive model is used within a finite element frame, a non-linear Newmark-type tangent incremental time integration scheme is employed and finally, an overall global damage index, based on potential energy criteria, is developed and justified.

  Abstract
  This paper represents an overview of the investigation pursued by the authors in the field of damage evaluation of concrete structures. A procedure to evaluate the damage [...]

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