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通过自行改进设计的装置对束丝纤维复合丝的弹性模量进行了测试 ,并对复合丝拉伸过程中的切线弹性模量随应变变化的规律进行了分析讨论 ,发现该复合材料切线弹性模量在基体屈服应变附近有明显的转折点 ,通过准确测定两个阶段的弹性模量可以获得评价复合丝复合质量的有关参数
By means of self-improvement design, the elastic modulus of bundled silk fiber composite yarn was tested, and the law of the change of tangent elastic modulus of the composite yarn with strain was analyzed and discussed. It was found that the tangent elastic modulus The amount of yield stress in the vicinity of the base there is a clear turning point, by accurately measuring the elastic modulus of two stages can be obtained to evaluate the composite wire composite quality parameters