Experimental and numerical investigation of the effects of stacking sequence and stress ratio on fatigue damage of glass/epoxy composites
Experimental and numerical investigation of the effects of stacking sequence and stress ratio on fatigue damage of glass/epoxy composites
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DOI：
10.1016/j.compositesb.2016.10.044
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发表时间：
2017-01-15
影响因子：
13.1
通讯作者：
Rebiere, Jean-Luc
中科院分区：
文献类型：
--
作者：
Roundi, Walid;El Mahi, Abderrahim;Rebiere, Jean-Luc
本文建立了玻璃纤维/环氧复合材料在不同应力比和不同铺层方向角下的疲劳行为。对进行循环拉伸试验的各种样本进行实验和数值分析（有限元法），以概述应力比和堆叠顺序（[0（2）/90（2）]（S）; [90（2）/0（2）]（S）; [0（3）/90]（s）; [90（3）/0]（s））对玻璃/环氧树脂疲劳性能的影响。静态分析是通过实验确定的应力-应变图，应变破坏，杨氏模量和拉伸强度为每个堆叠序列。实验结果与数值模拟结果吻合较好。本研究结果可引导我们选择最佳的堆叠顺序，以达到最大的疲劳寿命。(C)2016爱思唯尔有限公司版权所有。
In the present paper fatigue behavior of glass/epoxy composite materials under different stress ratios and for various plies orientation angles has been established. Experimental and numerical analysis (Finite Element Method) were performed on various specimens subjected to cyclic tensile tests in order to outline the influences of stress ratios and the stacking sequence ([0(2)/90(2)](S); [90(2)/0(2)](S); [0(3)/90](s); [90(3)/0](s)) on glass/epoxy fatigue properties. Static analysis is done experimentally to identify the stress -strain diagrams, strain to failure, Young's modulus and tensile strength for each stacking sequence. Comparison between experimental and numerical prediction show good agreement. The Results of this investigation can lead us to choose the most optimal stacking sequence for giving boundary conditions to achieve the maximum fatigue life. (C) 2016 Elsevier Ltd. All rights reserved.