纤维增强铝复合丝弹性模量的测试与分析

Elastic Modulus Test and Analysis for C/Al Composite Strands

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 。

Tensile tangent modulus of the C/Al composite strands is tested and analyzed in this paper. It is indicated that there is a transition point near the yield strain of the Al matrix on modulus strain curve . The modulus of the two stages are measured and can be used to evaluate infiltration quality of the matrix in composite strands.