A multisurface anisotropic model for Quasi-brittle materials
conference paper
A novel yield criterion capable of mode!ling the softening behaviour of anisotropic materiais under piane
stress conditions is presented. Individual yieid criteria are considered for tension and compression, according to two different failure mechanisms. The forer is associated with a localised fracture process, denoted by cracking of the material, and, the latter, is associated with a more distributed fracture process which is usually temmed as crushing of the matenial. The mcdei is capable of reproducing independent (in the sense of complete!y diverse) elastic and inelastic behaviour along a prescribed set of matenial axes. The energy-based regularisation technique resors then to tour different fracure energies (two in tension and two in compression).
stress conditions is presented. Individual yieid criteria are considered for tension and compression, according to two different failure mechanisms. The forer is associated with a localised fracture process, denoted by cracking of the material, and, the latter, is associated with a more distributed fracture process which is usually temmed as crushing of the matenial. The mcdei is capable of reproducing independent (in the sense of complete!y diverse) elastic and inelastic behaviour along a prescribed set of matenial axes. The energy-based regularisation technique resors then to tour different fracure energies (two in tension and two in compression).
Topics
TNO Identifier
979908
Source title
Proceedings ofthe Second ECCOMAS Conference on Numerical Methods in Engineering, Paris, France 9-13 September 1996
Pages
1-8
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