Influences of matrix ductility, interfacial bonding strength, and fiber volume fraction on tensile strength of unidirectional metal matrix composite
Influences of matrix ductility, interfacial bonding strength, and fiber volume fraction on tensile strength of unidirectional metal matrix composite
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DOI：
10.1007/bf02656581
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发表时间：
1990-03
期刊：
影响因子：
--
通讯作者：
Shojiro Ochiai;K. Osamura
中科院分区：
文献类型：
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作者：
Shojiro Ochiai;K. Osamura
采用蒙特卡罗计算机模拟方法，尝试预测基体延展性、界面结合强度、纤维体积分数对单向金属基复合材料拉伸强度的影响。主要结果总结如下。 (1)强粘结复合材料的强度随着基体延展性的增加而增加，然后几乎保持恒定。 (2)当基体具有延展性时，复合材料的强度随着界面结合强度的增加而增加，然后基本保持恒定。当基体不具有延展性时，强度先增加后随界面结合强度降低。在这种情况下，存在一个最佳结合强度，此时复合材料的强度最高。 (3) 关于复合材料的强度作为纤维体积分数的函数，根据基体的延展性、界面结合强度和纤维强度的分散性，存在用混合物规则近似描述的情况和不用该规则描述的情况。
A trial to predict the influences of ductility of matrix, interfacial bonding strength, and volume fraction of fiber on the tensile strength of unidirectional metal matrix composites was attempted by means of a Monte Carlo computer simulation method. The main results are summarized as follows. (1) The strength of strongly bonded composites increased with increasing ductility of matrix and then remained nearly constant. (2) When the matrix was ductile, the strength of composite increased with increasing interfacial bonding strength and then remained nearly constant. When the matrix was not ductile, the strength increased but then decreased with interfacial bonding strength. In this case, there was an optimum bonding strength, for which the strength of composite was highest. (3) Concerning the strength of composite as a function of volume fraction of fiber, there arose the case where it is approximately described by the rule of mixtures and also the case where it is not described by this rule, depending on the ductility of matrix, interfacial bonding strength, and scatter of strength of fiber.