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首页> 外文期刊>Polymers >Mechanical Characterization of the Tensile Properties of Glass Fiber and Its Reinforced Polymer (GFRP) Composite under Varying Strain Rates and Temperatures
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Mechanical Characterization of the Tensile Properties of Glass Fiber and Its Reinforced Polymer (GFRP) Composite under Varying Strain Rates and Temperatures

机译：不同应变率和温度下玻璃纤维的拉伸性能的力学表征及其增强聚合物（GFRP）复合材料

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Unidirectional glass fiber reinforced polymer (GFRP) is tested at four initial strain rates (25, 50, 100 and 200 s ?1 ) and six temperatures (?25, 0, 25, 50, 75 and 100 °C) on a servo-hydraulic high-rate testing system to investigate any possible effects on their mechanical properties and failure patterns. Meanwhile, for the sake of illuminating strain rate and temperature effect mechanisms, glass yarn samples were complementally tested at four different strain rates (40, 80, 120 and 160 s ?1 ) and varying temperatures (25, 50, 75 and 100 °C) utilizing an Instron drop-weight impact system. In addition, quasi-static properties of GFRP and glass yarn are supplemented as references. The stress–strain responses at varying strain rates and elevated temperatures are discussed. A Weibull statistics model is used to quantify the degree of variability in tensile strength and to obtain Weibull parameters for engineering applications.
机译：单向玻璃纤维增​​强聚合物（GFRP）在伺服上以四个初始应变速率（25,50,100和200s≤1）和六个温度（α25,0,25,50,75和100°C）进行测试。液压高速测试系统调查对其机械性能和故障模式的任何可能影响。同时，为了照亮应变率和温度效应机制，在四种不同的应变速率（40,80,120和160s≤1）和不同温度（25,50,75和100°C时，玻璃纱样品互补地测试）利用Instron滴重量影响系统。此外，GFRP和玻璃纱的准静态特性补充为参考文献。讨论了不同应变速率和升高温度下的应力 - 应变响应。 Weibull统计模型用于量化拉伸强度的可变性程度，并获得工程应用的威布尔参数。

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