Fretting Contact Analysis on Three-Dimensional Elastic Layered Half Space
Fretting Contact Analysis on Three-Dimensional Elastic Layered Half Space
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DOI：
10.1115/1.4004104
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发表时间：
2011-07
影响因子：
2.5
通讯作者：
Zhanjiang Wang;Wen-zhong Wang;F. Meng;Jiaxu Wang
中科院分区：
文献类型：
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作者：
Zhanjiang Wang;Wen-zhong Wang;F. Meng;Jiaxu Wang
本文提出了一种考虑加载历史的涂层或层状材料微动接触的数值求解方法。用半解析法(SAM)求解微动问题，通过Papkovich-Neuber势得到单位应力与相应的位移或应力之间的解析关系。采用共轭梯度法(CGM)和快速傅立叶变换(FFT)技术提高求解速度。该算法是非常有效的，因为应用于位置的网格只在感兴趣的接触区内，从而节省了计算时间。研究了涂层材料的微动接触，分析了粘滑行为对微动接触的影响。结果表明，剪力与压力的耦合作用使接触行为与同一种材料的接触行为有很大不同。当球受到动态载荷时，解决方案取决于加载过程的路径或历史，而接触行为取决于材料特性的不同程度。
A numerical approach for solving the fretting contact on coated or layered materials, with consideration of loading history, is presented in the paper. The fretting problem was solved by using a semi-analytical method (SAM), in which analytical relations between a unit stress and corresponding displacements or stresses were obtained through the use of the Papkovich–Neuber potentials. Conjugate gradient method (CGM) and fast Fourier transform (FFT) technique were employed to increase the solution speed. The algorithm was very effective since the meshes applied to the positions were just in the contact areas of interest, which saves the computing time. The fretting contact of coated materials was studied and the effects of stick-slip behaviors were analyzed. Results show that the coupled effects between the shear tractions and the pressure make the contact behaviors quite different with the solutions from same materials. The solutions depend on the path or history of the loading process when the ball is under dynamic loads, and the contact behaviors rely on the degree of dissimilarity of material properties.