High strain rate will occur at the tip of a growing crack, whether quasi-static or dynamicgrowth, due to the existence of strain singularity.
在扩展裂纹尖端，无论是准静态扩展还是动态扩展，由于应变奇异性的存在，出现较高的应变速率。
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It exhibits the viscous effect under dynamic loading case, and the effect strengthens with the growth of the micro-crack density induced by the meso-damage of material.
In the light of the fact of crackgrowth problems, supplement based on the dynamic influential radius method is proposed in this paper. Results of numerical examples demonstrate t...