Fatigue life prediction considering strength contribution of fibre layers with different orientations for CFRP laminates at high temperature

被引：12
作者：
Guo, Yi-Er [1 ]
Shang, De-Guang [1 ]
Zuo, Lin-Xuan [2 ]
Qu, Lin-Feng [2 ]
Cai, Di [1 ]
Jin, Tian [1 ]
Li, Dao-Hang [1 ]
机构：
[1] Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China
[2] Aviat Ind Corp China Ltd, Shenyang Aircraft Design & Res Inst, Shenyang 110035, Peoples R China
来源：
COMPOSITE STRUCTURES | 2023年 / 306卷
基金：
中国国家自然科学基金;
关键词：
Composite laminates; Tension-compression fatigue; Fatigue life prediction; Elevated temperature; POLYMER MATRIX COMPOSITE; MODEL; BEHAVIOR; DIAGRAM; TENSION; ROOM;
D O I：
10.1016/j.compstruct.2022.116604
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
In this paper, the mechanical properties of carbon fibre reinforced multidirectional laminates at different temperatures were tested. Based on the consideration of the microstructure and fibre layer thickness of the multidirectional laminates, a stress normalized method is proposed. Based on the normalized static ultimate strength and fatigue stress, a life prediction model suitable for the fatigue process dominated by compression damage is proposed at high temperature. The fatigue test results at different temperatures showed that the proposed fatigue life prediction model considering the strength contribution of different orientation fibre layers and the degradation of matrix properties at high temperature can successfully predict the fatigue life of multidirectional laminates at different temperatures, and the life prediction error is within the range of three factors.
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页数：11
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