Mechanics & Industry
Volume 18, Number 6, 2017
|Number of page(s)||5|
|Published online||06 March 2018|
VDT microplane model with anisotropic effectiveness and plasticity
Institut Pprime (UPR CNRS 3346) − ENSMA, Université de Poitiers,
CNRS 1, avenue Clément Ader – BP
Futuroscope Cedex, France
2 Laboratoire de Mécanique et Rhéologie, E.A. 2640, B.P. 3410, INSA-CVL, Université Franҫois Rabelais de Tours, 41034 Blois Cedex, France
3 Laboratoire de Physico-Chimie des Matériaux Appliqués, ENSAM CASABLANCA, HASSAN II University of Casablanca, Casablanca, Morocco
4 CEA, DAM, Le Ripault, 37260 Monts, France
* e-mail: email@example.com
Accepted: 22 September 2017
The opening-closing state of the microcracks is a kinematic phenomenon usually modeled using a set of damage effectiveness variables, which results in different elastic responses for the same damage level. In this work, the microplane model with volumetric, deviatoric and tangential decomposition denoted V-D-T is modified. The influence of the confining pressure is taken into account in the damage variables evolution laws. For a better understanding of the mechanisms introduced into the model, the damage rosettes are presented for a strain given level. The model is confirmed through comparisons of the simulations with the experimental results of monotonic, and cyclic tensile and compressive testing with different levels of confining pressure.
Key words: Induced anisotropy / damage effect / microcracks / constitutive modeling / microplane / plasticity
© AFM, EDP Sciences 2017
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