强震通常发生在剪切应变率的高值区及其边缘，尤其是与构造变形背景相一致的剪应变率高值区。
Strong earthquakes occurred in the high-value region and its margins of shear strain rate, especially in the high-value region of shear strain rate in accordance with tectonic deformation background.
研究了在具有不同保持时间、不同应变率、不同应变幅值及其历史对材料的循环变形行为的影响。
The effects of the dwell time, strain rate, strain amplitude and their histories on the cyclic deformation behavior are investigated.
给出了所有系列强度和应变动态增长因数与应变率之间的函数关系，求出各自的应变率临界值。
Moreover, the functions between all ranges of strength, dynamic strain increase factor and strain rate are gained, and respective strain rate critical values are concluded.
为了反映冲击载荷下岩石材料的应变率敏感性，对损伤的门槛值进行粘性调整。
The damage threshold is regularized in order to reflect strain-rate sensitivity of rock materials under impact load.
实验结果表明：[0]16层板破坏时表现出典型的不规则脆性破坏，纤维的损伤具有初始门槛值，而纤维的强化存在应变率门槛效应。
The experimental results show that disheveled catastrophic brittle failure is observed for the [0]16 specimens tested at quasi-static strain rates.
实验结果表明：[0]16层板破坏时表现出典型的不规则脆性破坏，纤维的损伤具有初始门槛值，而纤维的强化存在应变率门槛效应。
The experimental results show that disheveled catastrophic brittle failure is observed for the [0]16 specimens tested at quasi-static strain rates.
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