• 随样品存放时间增长PHBV蠕变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.

    youdao

  • 随着改性增大蠕变降低恢复增大改性效果越好

    With the increase of the modifier dosage, creep compliance declined and recovery rate raised in the same time, the modification effect is better.

    youdao

  • 通过实验研究给出固体推进剂体积蠕变、体积松弛材料的初始气孔率

    Based on the experimental study, volume creep compliance, volume relaxation modulus and their main curves and initial void content of solid propellant are given.

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  • 转换表达式避免数值积分求解蠕变柔量值产生舍入误差采用拉氏繁琐计算

    This expression avoids rounding error brought by numerical integral method and complex calculation of Laplace transforms.

    youdao

  • 本文测定了燃气用PE80管材热板焊接接头变柔量研究蠕变焊缝应力场影响

    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.

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  • 结果发现PFPA1212熔体行为温度有很强依赖性,随温度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.

    youdao

  • 结果发现PFPA1212熔体行为温度有很强依赖性,随温度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.

    youdao

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