研究了V型切口尖端的弹塑性应力奇异性问题。

The problem of elastoplastic stress singularity near the tip of V notch is studied.

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因其不需要求解结点方程，故不会产生前两种方法中出现的方程奇异性问题。

The problem of equation singularity does not exist here because there is no need to find the mode equation.

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因此，本文提出的自适应有理函数插值方法可以对大量采样数据进行插值运算而不会遇到奇异性问题。

So the adaptive rational function interpolation method can process a large number of sampling data for obtaining a rational interpolation without suffering singularity problems.

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