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Title: Continuous-Discontinuous Model for Ductile Fracture

Abstract

In this contribution, a continuum-dicontinuum model for ductile failure is presented. The degradation of material properties trough deformation is described by Continuum Damage Mechanics in a non-local integral formulation to avoid mesh dependence. In the final stage of failure, the damaged zone is replaced by a cohesive macro crack and subsequent traction-free macro crack for a more realistic representation of the phenomenon. The inclusion of the discontinuity surfaces is performed by the XFEM and Level Set Method and avoids the spurious damage growth typical of this class of models.

Authors:
Publication Date:
OSTI Identifier:
21366774
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1252; Journal Issue: 1; Conference: NUMIFORM 2010: 10. international conference on numerical methods in industrial forming processes dedicated to Professor O. C. Zienkiewicz (1921-2009), Pohang (Korea, Republic of), 13-17 Jun 2010; Other Information: DOI: 10.1063/1.3457558; (c) 2010 American Institute of Physics; Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALLOYS; CRACKS; DAMAGE; DEFORMATION; FINITE ELEMENT METHOD; FRACTURES; CALCULATION METHODS; FAILURES; MATHEMATICAL SOLUTIONS; NUMERICAL SOLUTION

Citation Formats

Seabra, Mariana R. R., and Cesar de Sa, Jose M. A. Continuous-Discontinuous Model for Ductile Fracture. United States: N. p., 2010. Web. doi:10.1063/1.3457558.
Seabra, Mariana R. R., & Cesar de Sa, Jose M. A. Continuous-Discontinuous Model for Ductile Fracture. United States. https://doi.org/10.1063/1.3457558
Seabra, Mariana R. R., and Cesar de Sa, Jose M. A. 2010. "Continuous-Discontinuous Model for Ductile Fracture". United States. https://doi.org/10.1063/1.3457558.
@article{osti_21366774,
title = {Continuous-Discontinuous Model for Ductile Fracture},
author = {Seabra, Mariana R. R. and Cesar de Sa, Jose M. A.},
abstractNote = {In this contribution, a continuum-dicontinuum model for ductile failure is presented. The degradation of material properties trough deformation is described by Continuum Damage Mechanics in a non-local integral formulation to avoid mesh dependence. In the final stage of failure, the damaged zone is replaced by a cohesive macro crack and subsequent traction-free macro crack for a more realistic representation of the phenomenon. The inclusion of the discontinuity surfaces is performed by the XFEM and Level Set Method and avoids the spurious damage growth typical of this class of models.},
doi = {10.1063/1.3457558},
url = {https://www.osti.gov/biblio/21366774}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1252,
place = {United States},
year = {Tue Jun 15 00:00:00 EDT 2010},
month = {Tue Jun 15 00:00:00 EDT 2010}
}