由此求得动态裂纹扩展时，沿裂纹边界的能量释放量和能量释放率(动态裂纹扩展力)。
Based on the boundary variational theorem, the energy release quantity and energy release rate (dynamical crack extension force) along the crack boundary are obtained.
本文利用混合型裂纹扩展的能量释放率理论对脆性材料受轴向压缩时其内部微观裂纹的扩展规律进行了研究。
This paper presents a theoretical analysis about the propagation rule of the micro-crack in brittle materials under axial compression, based on the energy release rate criterion.
利用当量直线裂纹扩展法研究复合型裂纹的能量释放率及相应的断裂判据。
The energy release rate and failure criterion for mixed mode are investigated by means of the method of equivalent linear crack extension.
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