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首页> 外文期刊>Journal of Applied Polymer Science >Dynamic Responses of Irregular Fibers UnderAxial Tension
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Dynamic Responses of Irregular Fibers UnderAxial Tension

机译：轴向张力下不规则纤维的动力响应

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摘要

A numerical study on the dynamicresponses of irregular fibers under axial tension is presentedin this article. The irregularity was represented by a sinusoi-dal shape profile along the fiber axis. The finite elementmethod was used in the simulations and the maximum firstprincipal stress due to the dynamic pulling has been exam-ined. Our numerical results indicate that the first principalstress mainly varies along the longitudinal direction. Itschange in radial direction is negligibly small. The maximumfirst principal stress in an irregular fiber always appears in the narrowest crosssection, which is the weakest link of thefiber. The maximum first principal stress is very sensitive tothe change in the irregular amplitude. The stress valueincreases dramatically with the increase in the amplitude ofirregularity. The frequency of irregularity has a limitedeffect on the maximum first principal stress.
机译：本文对不规则纤维在轴向张力下的动力响应进行了数值研究。不规则性由沿纤维轴的正弦形轮廓表示。在仿真中使用了有限元方法，并检查了由于动态牵拉而产生的最大第一主应力。数值结果表明，第一主应力主要沿纵向变化。它在径向上的变化很小。不规则纤维的最大第一主应力总是出现在最窄的横截面中，这是纤维的最薄弱环节。最大的第一主应力对不规则振幅的变化非常敏感。应力值随不规则幅度的增加而急剧增加。不规则的频率对最大第一主应力的影响有限。

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