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Characterization of a High Strain Composite Material

机译:高应变复合材料的表征

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摘要

L'Garde has designed and developed a high-strain composite material consisting of carbon fibers embedded in a silicone matrix. The behavior of this material is significantly different from standard composites and the paper presents special test methods to measure the properties of this material. It is found that rule of mixtures estimates are quite accurate for the longitudinal moduli in tension and bending, but less accurate for compression. The Poisson's ratio prediction is also not accurate. Regarding the strength of the composite, it is found that conservative predictions of tensile and compressive strengths can be obtained respectively from the Weibull distribution of the strength of a single fiber combined with a simple bundle theory, and the elastic fiber microbuckling stress.
机译:L'Garde设计并开发了一种高应力复合材料,该材料由嵌入硅树脂基体中的碳纤维组成。这种材料的行为与标准复合材料有很大不同,本文提出了特殊的测试方法来测量这种材料的性能。发现混合物的规则估计对于拉伸和弯曲的纵向模量是相当准确的,但是对于压缩则不太准确。泊松比预测也不准确。关于复合材料的强度,发现可以分别通过单纤维强度的威布尔分布,简单束理论和弹性纤维微屈曲应力来获得抗张强度和抗压强度的保守预测。

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