An incremental elastic-plastic analysis for 2D fracture mechanics problems

Stefania Fortino, Antonio Bilottat

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

This work proposes an incremental elastic-plastic analysis for two-dimensional problems of fracture mechanics under mode I loading. The aim of the analysis is to evaluate the amount of crack propagation during a process of stable elastic-plastic crack growth. The analysis is based on the coupled displacement-crack propagation problem defined by Q. S. Nguyen et al. in 1990 for elastic materials. Furthermore a criterion of crack growth for perfect elastic-plastic materials is introduced. The algorithm presented in this paper is valid for rectilinear crack propagation but it can be extended to evaluate curvilinear crack growth in materials showing dissipative deformations. To avoid the remeshing usually needed for modelling crack growth, a PUFEM model is utilized for the case of linear elastic cracked domains.

Original languageEnglish
Title of host publicationEuropean Congress on Computational Methods in Applied Sciences and Engineering
Subtitle of host publicationECCOMAS 2004
Publication statusPublished - 1 Dec 2004
MoE publication typeNot Eligible
EventEuropean Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004 - Jyväskylä, Finland
Duration: 24 Jul 200428 Jul 2004

Conference

ConferenceEuropean Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004
Abbreviated titleECCOMAS 2004
CountryFinland
CityJyväskylä
Period24/07/0428/07/04

Fingerprint

Fracture Mechanics
Crack Growth
Fracture mechanics
Plastics
Crack propagation
Crack Propagation
Remeshing
Evaluate
Elastic Material
Valid
Modeling
Model

Keywords

  • Elastic-plastic materials
  • Energy methods
  • Stable crack growth
  • Unremeshing techniques

Cite this

Fortino, S., & Bilottat, A. (2004). An incremental elastic-plastic analysis for 2D fracture mechanics problems. In European Congress on Computational Methods in Applied Sciences and Engineering: ECCOMAS 2004 [102095]
Fortino, Stefania ; Bilottat, Antonio. / An incremental elastic-plastic analysis for 2D fracture mechanics problems. European Congress on Computational Methods in Applied Sciences and Engineering: ECCOMAS 2004. 2004.
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Fortino, S & Bilottat, A 2004, An incremental elastic-plastic analysis for 2D fracture mechanics problems. in European Congress on Computational Methods in Applied Sciences and Engineering: ECCOMAS 2004., 102095, European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004, Jyväskylä, Finland, 24/07/04.

An incremental elastic-plastic analysis for 2D fracture mechanics problems. / Fortino, Stefania; Bilottat, Antonio.

European Congress on Computational Methods in Applied Sciences and Engineering: ECCOMAS 2004. 2004. 102095.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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N2 - This work proposes an incremental elastic-plastic analysis for two-dimensional problems of fracture mechanics under mode I loading. The aim of the analysis is to evaluate the amount of crack propagation during a process of stable elastic-plastic crack growth. The analysis is based on the coupled displacement-crack propagation problem defined by Q. S. Nguyen et al. in 1990 for elastic materials. Furthermore a criterion of crack growth for perfect elastic-plastic materials is introduced. The algorithm presented in this paper is valid for rectilinear crack propagation but it can be extended to evaluate curvilinear crack growth in materials showing dissipative deformations. To avoid the remeshing usually needed for modelling crack growth, a PUFEM model is utilized for the case of linear elastic cracked domains.

AB - This work proposes an incremental elastic-plastic analysis for two-dimensional problems of fracture mechanics under mode I loading. The aim of the analysis is to evaluate the amount of crack propagation during a process of stable elastic-plastic crack growth. The analysis is based on the coupled displacement-crack propagation problem defined by Q. S. Nguyen et al. in 1990 for elastic materials. Furthermore a criterion of crack growth for perfect elastic-plastic materials is introduced. The algorithm presented in this paper is valid for rectilinear crack propagation but it can be extended to evaluate curvilinear crack growth in materials showing dissipative deformations. To avoid the remeshing usually needed for modelling crack growth, a PUFEM model is utilized for the case of linear elastic cracked domains.

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KW - Unremeshing techniques

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Fortino S, Bilottat A. An incremental elastic-plastic analysis for 2D fracture mechanics problems. In European Congress on Computational Methods in Applied Sciences and Engineering: ECCOMAS 2004. 2004. 102095