An anisotropic theory of continuum damage mechanics for ductile fracture
An anisotropic theory of continuum damage mechanics for ductile fracture
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DOI：
10.1016/0013-7944(87)90108-1
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发表时间：
1987
影响因子：
5.4
通讯作者：
C. Chow;June Wang
中科院分区：
文献类型：
--
作者：
C. Chow;June Wang
描述了韧性断裂各向异性连续损伤力学理论的发展。利用作者最近提出的损伤效应张量M（D），建立了一个新的各向异性损伤演化方程和塑性本构方程。其次是广义损伤特征张量J的发展，以表征各向异性损伤演化被证明是兼容的损伤效应张量。若损伤状态为各向同性，则所提出的张量J的损伤演化张量方程可化为标量方程。通过简单的拉伸试验对模型进行了验证，结果令人满意。
The development of an anisotropic theory of continuum damage mechanics for ductile fracture is described. A new anisotropic damage evolution equation and a constitutive equation of plasticity are formulated using a damage effect tensor M (D) proposed recently by the authors. This is followed by the development of a generalized damage characteristic tensor J to characterize anisotropic damage evolution which is shown to be compatible with the damage effect tensor. The tensorial equation of damage evolution for the proposed tensor J can be reduced to a scalar equation if the damage state is isotropic. Verification of the proposed model has been performed by conducting simple tension tests and the results are shown to be satisfactory.