Frictional contact of a rigid punch on an arbitrarily oriented gradient half-plane

Frictional contact of a rigid punch on an arbitrarily oriented gradient half-plane
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刚性冲头在任意方向的梯度半平面上的摩擦接触

DOI:
10.1007/s00707-015-1457-5
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发表时间:
2015-09
期刊:
影响因子:
2.7
通讯作者:
Peng Juan
Peng Juan
中科院分区:
工程技术3区
文献类型:
--
作者:
Chen Peijian;Chen Shaohua;Peng Juan

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本文研究了剪切模量沿任意方向按指数梯度变化的半平面上刚性凸模的摩擦接触问题。利用傅里叶积分变换方法,将滑动接触问题化为第二类柯西型奇异积分方程。分析了不同摩擦系数、非均匀性参数和梯度方向角下的接触压力、面内应力、接触边缘附近的应力奇异性和应力强度因子。还评估了保持冲头垂直于接触表面移动的力矩。本文的研究结果对设计高耐磨性表面和理解自然界梯度材料的力学机理具有一定的参考价值。
Frictional contact of a rigid punch on a half-plane with shear modulus varying according to an exponential gradient in an arbitrary direction is investigated in this paper. Fourier integral transform method is employed to reduce the current sliding contact problem to a Cauchy-type singular integral equation of the second kind. The contact pressure and the in-plane stress, as well as the stress singularity and the stress intensity factor near both contact edges are obtained, which are further analyzed for different friction coefficients, non-homogeneity parameters and gradient orientation angles. The moment in order to keep the punch moving perpendicularly to the contact surface is also evaluated. All the present results should be helpful for the design of surfaces with strong wear resistance and understanding the mechanical mechanism of graded materials in nature.
DOI: --
发表时间: 1998
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