strain-optical relaxation

Take full account of the preparation of standard test sample, set of device parameters, temperature and other details on the polyethylene pipe specimen, constant strain rate tensile, creep test and relaxation test are accomplish.

充分考虑标准试验试样制备、设备参数设置、温度调节等细节，对聚乙烯管试样进行等速率拉伸、蠕变、松弛试验，通过合理的试验处理得到真实应力应变曲线以及力学性能参数。

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The resistance of the composites also demonstrates the creep and relaxation behaviors similar to strain and stress do.

此外，与高分子材料的应力松弛和蠕变相似，在应力作用下复合材料电阻呈现时间依赖性。

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We then calculate the strain relaxation using the dynamic model of dislocations.

在此基础上,利用动力学模型计算了应变多量子阱的应变弛豫.

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The stress-relaxation method is used to monitor the strain-induced precipitation curves with thermo-simulation machine in Nb and Nb-Ti microalloyed steel. Meanwhile, the strain-induced precipitation process is also obtained with the aid of carbon replica technique under the TEM observation.

利用应力弛豫法在热模拟机上分别测定了Nb钢及Nb-Ti微合金钢的应变诱导析出曲线，并采用萃取复型技术在电镜下直接观察了应变诱导析出过程。

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Reducing the tension upon the fiber under high temperature to provide enough movement space for polyester segments, which is beneficial to the relaxation of high elastic strain.

适当地降低高温下纤维的张力，为高分子链段的运动提供了活动空间，有利于高弹形变的松弛。

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