High strain rate will occur at the tip of a growing crack, whether quasi-static or dynamic growth, 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。
Based on the analysis procedure proposed in this work, the critical nucleation strain and relative void volume at the critical nucleation strain were determined.
并根据本研究提出的分析程序，确定了空穴的临界形核应变以及在形核应变时的相对空穴体积。
Characteristics of different material obtained from stress versus strain cure of cushion material are to analyze strain scopes at the respective stress ranges.
垫层材料应力应变试验可以了解不同材料的变化特征，分析在各自的应力区间中的应变范围。
The observed phenomenon that both 7000 series alloys tested soften cyclically at smaller plastic strain amplitude and harden at larger plastic strain amplitude is explained.
阐述了观察到的两种7000系列合金在小塑性应变幅下循环软化，而在大塑性应变幅下循环硬化的现象。
The fracture strain energy density at the high strain rate is mainly determined by the initial elastic modulus and the unstable strain and affected by the temperature and the strain rate.
在高应变率下，断裂应变能密度主要由初始弹性模量和失稳应变共同决定，受温度效应和应变率效应的综合影响。
At the same tensile strain, the power law relationship between band propagating velocity and applied strain rate is also obtained.
得到了在相同应变下，变形带的传播速率和加载应变速率之间的幂律关系。
A function of distance between initial stress strain point and point at state boundary surface is adopted to simulate stress strain behaviour of soil in condition of small strain.
采用从初始应力点到状态边界面的距离为参数的系数来修正硬化准则以模拟土体小应变条件下的应力应变特征。
Regional strain distribution pictures, strain patterns, may be determined by systematically measuring the finite strains in rock at the various spots in the relevant regions.
对一定区域内不同部位的岩石有限应变进行系统的测量就可以得到这个区域内的应变分布图象—应变型式。
It is suggested to define the strain at "convergence point" as the ultimate strain in compression for laterally unconfined concrete.
建议把“收敛点”的应变定义为无横向约束混凝土的极限压应变。
When the ratio not more than 0.2, CFRP tensile strain can reach or exceed the permissible strain at ultimate capacity state, and therefore CFRP can work efficiently.
当配筋特征值不大于0.2时，承载能力极限状态下碳纤维片材的拉应变可以接近或超过允许拉应变，因此可以有效地对受弯构件正截面承载力进行加固；
According to the demarcation experiment result the strain of the magnet at different operating currents is measured using the Fiber Bragg Grating strain sensor.
数值模拟出了磁体在不同运行电流时的应力与应变值，并且运用光栅布拉格光栅传感器对磁体在不同运行电流时的应变进行了测量。
The experimental items of the tests are tension of constant strain rate, creep at constant stress, and strain controlled low cycle fatigue of constant strain rate.
实验项目有等应变率拉伸、等应力蠕变和控制应变幅的等应变率塑性循环。
By scientific computing with the constitutive equation, the plate′s stress-strain curves at different strain rate are obtained.
金属材料在不同应变率下的真实应力应变曲线是汽车碰撞模拟的一个关键。
The load-strain relationship at crack tip is obtained through electric strain gauge measurement.
用电测法得到了裂尖处的载荷—应变标定关系。
Then, the strain accumulation model of EPFC growth is presented based on an analysis of elastic-plastic stress and strain at the crack-tip.
在对裂尖弹塑性应力应变分析的基础上，作者建立了疲劳裂纹扩展的应变累积模型。
Aiming at some existing problems in strain sensor, a kind of ultra-low power wireless strain sensor based on MSP430 was designed.
针对解决现有应变传感器存在的一些问题，设计了一种基于MSP430的超低功耗无线应变传感器。
Static strain testing method which tests mainly strain parameter is a main method of the derrick dependability assessment at present.
以实测应变参数为主的静态应变测试法是目前对现役井架可靠性评估的主要方法。
The whole procedure of plain strain arrest toughness K Ia on several traditional ship steel was introduced. The values of plain strain arrest toughness K Ia at different temperatures were obtained.
针对几种常用的压力容器用钢和舰船钢介绍了平面应变止裂韧度试验的全过程，得到了几种材料不同温度下的平面应变止裂韧度值。
Under plane strain condition, the strain localization starts around the peak stress state; and a V-shaped shear band is formed at the residual stress state.
在平面应变压缩条件下，砂土在峰值应力状态附近出现应变局部化现象，在残余状态最终形成一条V型剪切带。
The result shows that the plastic strain at the heel region induced by wire bonding process, molding process and the thermal stress and strain in solder reflow are the main causes of heel crack.
结果显示由于引线键合工艺、注塑工艺以及回流焊中封装体各部分不同的热膨胀系数引起的热应力和塑性变形是产生引脚跟断裂的主要因素。
Analytical solution of complete stress-strain curve of rock specimen in uniaxial tension is proposed based on gradient-dependent plasticity considering strain localization initiated at peak strength.
基于梯度塑性理论，考虑了应变局部化，提出单轴拉伸条件下岩样全程应力—应变曲线解析解。
Method of controlled strain rate was used to measure failure of various moulding sands at elevated temperature, and all curves of stress-strain of moulding sands are obtained.
采用控制应变速率的方法测试了不同型砂高温下的破坏方式，从而获得了型砂全程应力-应变曲线；
The strain rate was changed stepwise several times; and stress relaxation tests and a set of creep tests were performed during otherwise monotonous loading at a constant strain rate.
试验不仅实现了应变率逐步变化加载过程，同时也实现了蠕变加载和应力松弛过程。
The different closure division may produce different temperature strain and initial strain at the same time, and effect closure deviation thereby.
同时采用不同的合拢分段会产生不同温度应力以及初始应力，从而影响合拢偏差。
And ANN model could predict the corresponding flow stress at different strain, but constitutive equations could only predict the peak stress depending on different strain rates and temperatures.
神经网络可以预测不同应变下的相应的流变应力，但是本构方程只可以根据不同的应变速率和温度来预测峰值应力。
The results show that the flow stress increases with the increase of strain rate, and the true stress-true strain curves at different temperature and strain rates are stable-state.
结果表明，流动应力随应变速率的增大而增大，不同温度和应变速率的真应力-真应变曲线呈稳态流动型。
A new concept for large strain-true shear strain-was proposed based on the definition of strain at infinitesimal deformation.
从无穷小变形条件下应变的定义出发，提出了大变形时真实切应变的概念。
METHODS: Primary human periodontal ligament cells were obtained and passaged. Then the cells were stretched by dynamic mechanical strain unit with 1%, 10% and 20% strain at different time.
方法：通过原代和传代培养，获得性状稳定的人牙周膜细胞，使用动态机械应变细胞加载仪对细胞进行1%、10%和20%动态牵张应变加载。
The design of coupling fiber-optic strain sensor was presented in the paper, and the scheme of coupling fiber-optic strain sensor used in vehicle dynamic weighting was discussed at the same time.
介绍了耦合型光纤应变传感器的工作原理，分析了耦合型光纤应变传感器的设计和应用于汽车动态称重的方案。
The uncertainty of G/Gmax is obvious at the large strain, while that of is obvious at the small strain.
大应变时动剪切模量比不确定性大，而小应变时阻尼比离散显著；
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