Temperature dependent ultimate tensile strength model for short fiber reinforced metal matrix composites

被引：11
作者：
Huang, Jun [1 ,2 ]
Li, Weiguo [1 ,2 ,3 ]
He, Yi [2 ]
Li, Ying [2 ]
Zhang, Xuyao [2 ]
Yang, Mengqing [2 ]
Zheng, Shifeng [2 ]
Ma, Yanli [2 ]
机构：
[1] State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China
[2] Chongqing Univ, Coll Aerosp Engn, Chongqing 400044, Peoples R China
[3] Chongqing Univ, Minist Educ, Key Lab Optoelect Technol & Syst, Chongqing 400044, Peoples R China
来源：
COMPOSITE STRUCTURES | 2021年 / 267卷
基金：
中国国家自然科学基金;
关键词：
Short fiber; Metal matrix composites; High temperatures; Ultimate tensile strength; Strengthening mechanisms; SHORT ALUMINA FIBER; MECHANICAL-PROPERTIES; ALLOY COMPOSITES; THERMAL-EXPANSION; BEHAVIOR;
D O I：
10.1016/j.compstruct.2021.113890
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In this paper, considering the combined infiuences of fiber strength and various strengthening mechanisms including load transmitting, dispersion strengthening, residual thermal stress and dislocation strengthening, and their evolution with temperature, a temperature dependent ultimate tensile strength theoretical model of short fiber reinforced metal matrix composites is established. The model is confirmed by comparing with the available experimental results of six different short fiber reinforced metal matrix composites. Then, based on the model we developed, the contribution of various strengthening mechanisms to the ultimate tensile strength of the composites with the evolution of temperature is analyzed. Besides, the quantitative infiuences of Young's modulus of fiber and matrix on the ultimate tensile strength evolution with temperature are discussed. Several opinions on the design of short fiber reinforced metal matrix composites are put forward, especially at high temperatures.
引用
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页数：7
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