文章摘要信息 关键词 ： 冲击地压 弹性能 弹性能判据 有限元法 [gap=1000]Keywords : rock burst；elastic energy；elastic energy criterion；finite element method
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The non-classic boundary condition of the elastic instability has been educed by the energy functional variation analysis. So a criterion equation of the elastic instability can be got.
利用能量泛函变分的方法导出了发生弹性失稳的非经典边界条件，得到了失稳的判据方程。
Based on the concept of elastic deformation energy, a new springback evaluation criterion is presented in this paper.
本文从弹性变形能概念出发，提出一种新的回弹评价指标。
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