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Inverse contact problem for an elastic half-space

机译:弹性半空间的逆接触问题

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This paper presents a system of integral equations for the determination of contact stresses on a part of the boundary of elastic half-space by measured data of displacements on the rest of the stress-free boundary. Inverse problems like this are refereed to as conditionally ill-posed with pronounced dependence of the solution from small perturbations in measured data. The 3D problem formulation is based on spatial harmonic functions. It is proposed to use a Trefftz-type method for the sought harmonic functions based on the radial basis functions to solve the system of integral equations. A synthetic example is presented to illustrate the proposed approach.
机译:本文提出了一个积分方程组,用于通过测量无应力边界其余部分的位移数据来确定弹性半空间的一部分边界上的接触应力。像这样的逆问题被认为是有条件的不适定,与测量数据中的小扰动引起的解的明显依赖性有关。 3D问题公式基于空间谐波函数。建议使用Trefftz型方法对基于径向基函数的谐波函数进行求解,以求解积分方程组。给出了一个综合的例子来说明所提出的方法。

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