基于这种裂纹单元，作者引入椭圆参数方程，推出一种计算裂纹前缘点应力强度因子的新方法。
Based on this kind of crack element, and by introducing parametric equation of ellipse, a new method for estimating stress intensity factor is proposed.
本文从线弹性断裂力学的精确解出发，在考虑材料强化影响的情况下，计算出裂纹前缘的塑性区。
The exact solution of linear elastic fracture mechanics is suggested in this paper and the plastic zone of crack tip is calculated under the condition of strain-hardening of material.
从非局部连续介质理论出发，采用一种新的理性力学方法对裂纹前缘内聚应力分布规律进行研究。
Starting with the nonlocal continuum theory, a new rational mechanics method is applied to study logically the cohesive stress law of ahead of a crack tip.
在材料硬化阶段，含层间裂纹的层板裂尖前缘应力奇异性总是存在的；
The numerical results indicate that FEM is efficient to analyze stress singularity, and the stress singularity always exists in the hardening phase …
在材料硬化阶段，含层间裂纹的层板裂尖前缘应力奇异性总是存在的；
The numerical results indicate that FEM is efficient to analyze stress singularity, and the stress singularity always exists in the hardening phase …
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