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A damage accumulation model for complex strain paths: Prediction of ductile failure in metals |
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| Authors: | Rimma Lapovok D Hodgson |
| Institution: | a ARC CoE in Design of Light Metals, Department of Materials Engineering, Monash University, Vic. 3800, Australia b Centre for Material and Fibre Innovation, Deakin University, Geelong, Vic. 3217, Australia |
| Abstract: | The characterisation of strain path with respect to the directionality of defect formation is discussed. The criterion of non-monotonic strain path is used in the scalar and tensor models for damage accumulation and recovery. Comparable analysis of models and their verification has been obtained by simulation of crack initiation in a two-stage metal forming operation consisting of wire drawing followed by constrained upsetting. |
| Keywords: | Damage tensor Strain path Low-bound ductility Metal forming operations |
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