Indentation of an Orthotropic Half-Space by a Rigid Ellipsoidal Indenter
Indentation of an Orthotropic Half-Space by a Rigid Ellipsoidal Indenter
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DOI：
10.1115/1.1537743
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发表时间：
2003-04
影响因子：
2.5
通讯作者：
D. Shi;Yuan Lin;T. Ovaert
中科院分区：
文献类型：
--
作者：
D. Shi;Yuan Lin;T. Ovaert
各向异性材料代表了一类独特的材料，包括晶体、木材、薄膜和复合材料。现有的文献工作为工程界提供了各向同性接触力学的深入了解，并已充分发展的方法来解决各向同性接触问题。然而，各向异性材料系统更为复杂，其分析在文献中还没有得到充分的发展。这里提出的是一个刚性椭球压头对正交各向异性半空间的压痕分析，与半空间的表面平行的两个轴的材料对称，来自应力平衡。采用数值方法求解了正交各向异性和横观各向同性材料系统的接触参数（接触尺寸和法向近似）。
Anisotropic materials represent a unique class of materials, including crystals, wood, thin-films, and composites. Existing work in the literature has provided the engineering community with an in-depth understanding of isotropic contact mechanics, and the methodologies for solving isotropic contact problems have been fully developed. Anisotropic material systems, however, are more complex and their analysis is less fully-developed in the literature. Presented here is the analysis of indentation by a rigid ellipsoidal indenter against an orthotropic half-space, with the surface of the half-space parallel to two of the axes of material symmetry, derived, from stress equilibrium. A numerical method has been used to solve for the contact parameters (contact dimensions and normal approach) for both orthotropic and transversely isotropic material systems.