得到了快速扩展裂纹的动态应力强度因子。
Finally, the dynamic stress intensity factors of the fast-propagating crack is obtained.
给出了瞬态的位移场和运动裂纹尖端的动态应力强度因子。
The transient displacement field and the dynamic stress intensity factor at the moving crack tip are obtained.
同时，发现动态应力强度因子比相应的静态应力强度因子大。
Meanwhile, we find the dynamical stress intensity factor is bigger than the statical stress intensity factor under the same conditions.
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