DUCTILE FRACTURE CRITERIA IN PREDICTION OF CHEVRON CRACKS
Abstract eng: Seven ductile fracture criteria are applied to simulation of cold forward extrusion and their performance in prediction of chevron cracks is presented. The criteria are implemented as user material subroutine (VUMAT) into ABAQUS/Explicit code and their calibration is based on tensile testing of several types of tensile specimens. Ability of the criteria to predict material damage in forward extrusion is tested under various combinations of process parameters.
Contributors:
Publisher:
Institute of Thermomechanics AS CR, v.v.i., Brno
Conference Title:
Conference Title:
Engineering Mechanics 2011
Conference Venue:
Svratka (CZ)
Conference Dates:
2011-05-09 / 2011-05-12
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2014-10-24, last modified 2014-11-18
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