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首页> 美国政府科技报告 >The Effect of Environment on the Mechanical Behavior of Kevlar/Epoxy Materials.
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The Effect of Environment on the Mechanical Behavior of Kevlar/Epoxy Materials.

机译：环境对Kevlar / Epoxy材料力学行为的影响。

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Applicability of a viscoelastic characterization to Kevlar 49/5208 material under severe environment was investigated. Specific studies include development of properties reflecting material dependence on time, temperature and humidity and resolution of the question as to whether a specific thermal conditioning environment can be directly substituted for a specific moisture conditioning environment over a prescribed temperature vs. humidity range. Specimens with 0 deg, 90 deg and + or - 45 deg layup were used for creep-recovery tests in various environments. Test data were analyzed by using a viscoelasticity theory and power law representation of the creep compliance. Stress dependence of the material is emphasized to account for non-linearity. (Author)

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