基于内聚力模型的纤维复合材料残余应力分析

被引：2

作者：

赵玉萍 ^{[1
,2
]}

袁鸿 ^{[1
]}

韩军 ^{[1
]}

杨雄飞 ^{[1
]}

机构：

[1] 暨南大学应用力学研究所,重大工程灾害与控制教育部重点实验室

[2] 湖南科技大学工程力学系

来源：

材料热处理学报 | 2014年 / 35卷 / 12期

关键词：

复合材料; 残余应力; 解析法; 界面; 内聚力模型;

D O I：

10.13289/j.issn.1009-6264.2014.12.039

中图分类号：

TB332 [非金属复合材料];

学科分类号：

0805 ; 080502 ;

摘要：

采用界面弹性-软化内聚力模型,用解析法研究了单纤维/聚合物基体复合材料高温固化后的残余应力分布。结果表明:较高固化温度引起界面软化和脱粘;纤维中残余应力分布由应力增长区和应力平台区组成,残余应力平台值与固化温度及纤维和基体热膨胀系数差值成正比,界面参数只对残余应力增长区的分布有影响;在界面断裂韧性相同情况下,界面弹性模量增加缩短应力传递长度,界面软化模量增加减少软化长度,弹性和软化模量变化不影响界面脱粘的温度。

引用

页码：216 / 221

页数：6

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