分析了应变率对混凝土弹性模量、峰值应力时的应变、泊松比和混凝土吸能能力的影响。
The relationships between strain rate and the elastic modulus, critical strain, Poisson's ratio and energy absorption capacity of concrete are still studied.
用12个区域来测量收缩期圆周应变时间和应变率，并用应不峰值时间和应不率的标准差来表示心肌不同步。
Time to peak systolic circumferential strain and strain rate were measured in 12 segments, and myocardial dyssynchrony was expressed as the SD of time to peak strain and strain rate.
结论表明，在此应变率段花岗岩材料具有明显的应变率硬化效应，峰值应力前应力-应变曲线的跃进特性。
The results show that the granite has strain rate effect, hardening effect and jumping behaviors of stress-strain curve.
峰值应变随应变率增大有增长的趋势，极限应变没有明显的率敏感性；
The peak strain has a increasing tendency with the increase in strain rate; and the ultimate strain is not sensitive to the strain rate.
峰值应变随应变率增大有增长的趋势，极限应变没有明显的率敏感性；
The peak strain has a increasing tendency with the increase in strain rate; and the ultimate strain is not sensitive to the strain rate.
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