When the direct boundary element method (DBEM) is used to solve an elastic problem and the field point coincides with the load point, the boundary integral will be strange.
在用直接边界元法解决弹性问题时，当场点与加载点重合时，边界积分方程将出现奇异。
When the direct boundary element method (DBEM) is used to solve an elastic problem and the field point coincides with the load point, the boundary integral will be strange.
在用直接边界元法解决弹性问题时，当场点与加载点重合时，边界积分方程将出现奇异。
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