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 language | English |
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| Title of host publication | European Congress on Computational Methods in Applied Sciences and Engineering |
| Subtitle of host publication | ECCOMAS 2004 |
| Publication status | Published - 1 Dec 2004 |
| MoE publication type | Not Eligible |
| Event | European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004 - Jyväskylä, Finland Duration: 24 Jul 2004 → 28 Jul 2004 |
Conference
| Conference | European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004 |
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| Abbreviated title | ECCOMAS 2004 |
| Country/Territory | Finland |
| City | Jyväskylä |
| Period | 24/07/04 → 28/07/04 |
Keywords
- Elastic-plastic materials
- Energy methods
- Stable crack growth
- Unremeshing techniques