An energy-based crack growth criterion for modelling elastic–plastic ductile fracture |
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| Authors: | Zhenjun Yang |
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| Affiliation: | College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310027, PR China |
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| Abstract: | A crack growth criterion is derived based on the Griffith energy concept and the cohesive zone model for modelling fracture in elastic–plastic ductile materials. The criterion is implemented in the finite element context by a virtual crack extension technique. An automatic modelling of the ductile fracture process is realised by combining a local remeshing procedure and the criterion. The validity of the derived criterion is examined by modelling a compact tension specimen. |
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| Keywords: | Finite element modelling Ductile fracture criterion Cohesive zone model and virtual crack extension |
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