Revue Nature et Technologie
Volume 8, Numéro 2, Pages 32-38
2016-06-30
Authors : Bensaada Rachid . Almansba Madjid . Ould Ouali Mohand . Hannachi Naceur Eddine .
The purpose of this work is to model the ductile fracture of porous metals from a micromechanical point of view. To do this, the Rousselier model is implemented in the finite element code ABAQUS using a VUMat (Vectorized User MATerial) subroutine. The integration algorithm selected for the implementation is the Aravas algorithm, which is based on the ‘backward-Euler’ method; it follows the principle of the elastic prediction – plastic correction. To check the validity of the implemented model, simulations of academic examples and fracture mechanics problems (i.e. CT test and Charpy test) are performed, and a good description of the fracture process is obtained.
Damage, ductile fracture, porous media, implementation, micromechanics.
بوسالم أحلام
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عابد يوسف
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ص 117-132.
Yahia Zeghoudi
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pages 74-88.
Said Houari Amel
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pages 257-268.
كبير مولود
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قشام إسماعيل
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بن العايب عبد العزيز
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ص 109-128.
Benhamena Ali
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Benaoum Fatima
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Baltach Abdelghani
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Drai Ahmed
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Khelil Foudil
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pages 374-381.