期刊论文详细信息
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES 卷:48
Plane strain pure bending of sheets with damage evolution at large strains
Article
Alexandrov, Sergei1  Gelin, Jean-Claude2 
[1] Russian Acad Sci, AYu Ishlinskii Inst Problems Mech, Moscow 119526, Russia
[2] Univ Franche Comte, FEMTO ST Inst, Dept Appl Mech, F-25000 Besancon, France
关键词: Pure bending;    Large strains;    Rigid plasticity;    Damage evolution;   
DOI  :  10.1016/j.ijsolstr.2011.02.012
来源: Elsevier
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【 摘 要 】

An analysis of plane-strain bending at large strains for the rigid/plastic incompressible material model including arbitrary strain-hardening and damage evolution laws is performed. The fracture criterion is based on a critical value of the damage parameter. Numerical treatment is reduced to the system of two partial differential equations written in characteristic coordinates. The through-thickness distribution of the principal stresses and damage parameter as well as the variation of the bending moment with the radius of curvature of the concave surface are found for Swift's hardening law and one specific damage evolution law. General tendencies in solution behaviour are in agreement with physical expectations. (C) 2011 Elsevier Ltd. All rights reserved.

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