Maximum circumferential stress criterion applied to orthotropic materials
Maximum circumferential stress criterion applied to orthotropic materials
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DOI：
10.1111/j.1460-2695.2005.00922.x
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发表时间：
2005-09
影响因子：
3.7
通讯作者：
C. Carloni;L. Nobile
中科院分区：
文献类型：
--
作者：
C. Carloni;L. Nobile
本文将最大周向拉应力准则推广到正交各向异性材料，得到裂纹起裂角和断裂位置。它包括正交各向异性，载荷双轴性和非奇异项的影响。它要求解具有中心斜裂纹的正交各向异性板的弹性静力学问题，该板在无穷远处承受均布双轴载荷。假设裂纹线不与物体的弹性对称轴重合。原来的问题已通过旋转变换成一个坐标系，其中一个轴沿着裂纹。考虑了参考系旋转对应力应变方程和平衡方程的影响。应力场用两个势函数表示，裂纹问题用叠加原理求解。
The topic of the paper is the extension of the Maximum Circumferential Tensile Stress Criterion to orthotropic materials, to obtain the crack initiation angle and the fracture loci. It includes the effects of orthotropy, load biaxiality and non-singular terms. It requires the solution of the elastostatic problem of an orthotropic plate having a central inclined crack and subjected at infinity to a uniform biaxial load. It is assumed that the crack line does not coincide with an axis of elastic symmetry of the body. The original problem has been transformed by rotation into a system of coordinates with one axis along the crack. The effects of the rotation of the reference system on the stress-strain equations as well as on the equilibrium equations have been considered. The stress field is represented in terms of two potential functions and the crack problem is solved by means of the superposition principle.