随样品存放时间增长,PHBV蠕变柔量逐渐下降,平衡应力下降。
With the store time goes on, the compliance and the balance stress of PHBV fibers decrease, due to the increase of crystallinity.
随着改性剂掺量的增大,蠕变柔量降低,恢复率增大,改性效果越好。
With the increase of the modifier dosage, creep compliance declined and recovery rate raised in the same time, the modification effect is better.
通过实验研究,给出了固体推进剂的体积蠕变柔量、体积松弛模量和材料的初始气孔率。
Based on the experimental study, volume creep compliance, volume relaxation modulus and their main curves and initial void content of solid propellant are given.
该转换表达式避免了数值积分法求解蠕变柔量值产生舍入误差和采用拉氏变换的繁琐计算。
This expression avoids rounding error brought by numerical integral method and complex calculation of Laplace transforms.
本文测定了燃气用PE80管材热板焊接接头的蠕变柔量,研究了蠕变对焊缝裂尖应力场的影响。
In this paper, the creep compliance of Hot-plate welded joint of PE80 pipe is measured, and the effect of creep on the crack tip stress field in the weld is investigated.
结果发现PFPA1212熔体蠕变行为对温度有很强的依赖性,随温度的升高,蠕变柔量不断增加;
The results showed that the creep behavior of PA1212 melt was affected by temperature obviously. The creep strains and viscoity of the melt increased with the rising of the temperature.
结果发现PFPA1212熔体蠕变行为对温度有很强的依赖性,随温度的升高,蠕变柔量不断增加;
The results showed that the creep behavior of PA1212 melt was affected by temperature obviously. The creep strains and viscoity of the melt increased with the rising of the temperature.
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