A multidimensional anisotropic strength criterion based on Kelvin modes
A multidimensional anisotropic strength criterion based on Kelvin modes
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DOI：
10.1016/s0020-7683(98)00338-2
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发表时间：
2000-05-01
影响因子：
3.6
通讯作者：
Cowin, SC
中科院分区：
文献类型：
--
作者：
Arramon, YP;Mehrabadi, MM;Cowin, SC
提出了一种各向异性弹塑性材料多轴强度预测的新理论。在多维应力空间中，由此产生的失效包络是分段光滑的。包络线的每个面都被期望通过称为开尔文模式的特定各向异性弹性变形模式来表示失效数据的轨迹。研究表明，单独的开尔文模式理论对某些材料的失效提供了不完整的描述，但这一弱点可以通过引入一组互补模式来解决。一个修正的理论，结合开尔文和互补模式的发展和说明的应用实例。(C)2000爱思唯尔科技有限公司版权所有。
A new theory for the prediction of multiaxial strength of anistropic elastoplastic materials is proposed. The resulting failure envelope, in a multidimensional stress space, is piecewise smooth. Each facet of the envelope is expected to represent the locus of failure data by a particular anisotropic elastic deformation mode called a Kelvin mode. It is shown that the Kelvin mode theory alone provides an incomplete description of the failure of some materials, but that this weakness can be addressed by the introduction of a set of complementary modes. A revised theory which combines both Kelvin and complementary modes is developed and illustrated by an applied example. (C) 2000 Elsevier Science Ltd. All rights reserved.