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==Abstract==
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Two fundamental questions in the mechanics and physics of fracture are: (i) What is the relation between observable features of a material’s microstructure and its resistance to crack growth? (ii) What is the relation between observable features of a material’s microstructure and the roughness of the fracture surface? An obvious corollary question is: What is the relation, if any, between a material’s crack growth resistance and the roughness of the corresponding fracture surface? 3D finite element calculations of mode I ductile crack growth aimed at addressing these questions will be discussed. In the calculations, ductile fracture of structural metals by void nucleation, growth and coalescence is modeled using an elastic-viscoplastic constitutive relation for a progressively cavitating plastic solid. A material length scale is introduced via a discretely modeled microstructural feature, such as the spacing of inclusions that nucleate voids or the mean grain size. A particular focus will be on the use of such analyses to suggest the design of material microstructures for improved fracture resistance.
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== Recording of the presentation ==
 
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| Recording of the presentation
 
 
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| {{#evt:service=youtube|id=https://youtu.be/UQSdzAQhEfg|alignment=center}}
 
| {{#evt:service=youtube|id=https://youtu.be/UQSdzAQhEfg|alignment=center}}
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|- style="text-align: center;"
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| Location: Technical University of Catalonia (UPC), Vertex Building.
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|- style="text-align: center;"
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| Date: 1 - 3 September 2015, Barcelona, Spain.
 
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== General Information ==
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* Location: Technical University of Catalonia (UPC), Barcelona, Spain.
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* Date: 1 - 3 September 2015
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* Secretariat: [//www.cimne.com/ International Center for Numerical Methods in Engineering (CIMNE)].
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== External Links ==
 
== External Links ==
 
* [//congress.cimne.com/complas2015/frontal/default.asp Complas XIII] Official Website of the Conference.
 
* [//congress.cimne.com/complas2015/frontal/default.asp Complas XIII] Official Website of the Conference.
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* [//www.eccomas.org/ ECCOMAS] European Community on Computational Methods in Applied Sciences.
 
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* [//www.iacm.info/ iacm] international association for computational mechanics.
 
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* [//www.cimne.com/ CIMNE] Centre Internacional de Metodes Numerics.
 
 
* [//www.cimnemultimediachannel.com/ CIMNE Multimedia Channel]
 
* [//www.cimnemultimediachannel.com/ CIMNE Multimedia Channel]

Latest revision as of 11:43, 19 July 2016

Abstract

Two fundamental questions in the mechanics and physics of fracture are: (i) What is the relation between observable features of a material’s microstructure and its resistance to crack growth? (ii) What is the relation between observable features of a material’s microstructure and the roughness of the fracture surface? An obvious corollary question is: What is the relation, if any, between a material’s crack growth resistance and the roughness of the corresponding fracture surface? 3D finite element calculations of mode I ductile crack growth aimed at addressing these questions will be discussed. In the calculations, ductile fracture of structural metals by void nucleation, growth and coalescence is modeled using an elastic-viscoplastic constitutive relation for a progressively cavitating plastic solid. A material length scale is introduced via a discretely modeled microstructural feature, such as the spacing of inclusions that nucleate voids or the mean grain size. A particular focus will be on the use of such analyses to suggest the design of material microstructures for improved fracture resistance.

Recording of the presentation

Location: Technical University of Catalonia (UPC), Vertex Building.
Date: 1 - 3 September 2015, Barcelona, Spain.

General Information

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Published on 10/06/16

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