Scheyvaerts, Florence
[UCL]
Pardoen, Thomas
[UCL]
Onck, P. R.
A micromechanical model for predicting the strain increment required to bring a damaged material element from the onset of void coalescence up to final fracture is developed based on simple kinematics arguments. This strain increment controls the unloading slope and the energy dissipated during the final step of material failure. Proper prediction of the final drop of the load carrying capacity is an important ingredient of any ductile fracture model, especially at high stress triaxiality. The model has been motivated and verified by comparison to a large set of finite element void cell calculations.
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Bibliographic reference |
Scheyvaerts, Florence ; Pardoen, Thomas ; Onck, P. R.. A New Model for Void Coalescence by Internal Necking. In: International Journal of Damage Mechanics, Vol. 19, no. 1, p. 95-126 (2010) |
Permanent URL |
http://hdl.handle.net/2078.1/34221 |