| 复合材料层合板开口补强选型分析 |
| |
| 引用本文： | 谢军伟,张晓晶,汪海.复合材料层合板开口补强选型分析[J].固体力学学报,2011(Z1). |
| |
| 作者姓名： | 谢军伟 张晓晶 汪海 |
| |
| 作者单位： | 上海交通大学航空航天学院; |
| |
| 摘 要： | 论文开展了受拉伸复合材料层合板圆形开口四种补强型式的研究.首先,基于Hoffman准则,分析补强型式对首层失效强度的影响,再通过比较开口周围最大应力和应变的降低程度,分析圆缺、环形、椭圆缺和矩形缺四种补强型式的补强效率.通过有限元参数化建模,分析了几何尺寸对补强效率的影响,给出了不同补强型式适合的补强范围.研究表明通过合理地设计补强型式可以有效地降低应力集中,提高拉伸破坏强度.分析结果可以为复合材料飞机结构在相似形状和载荷条件下的补强设计提供参考.
|
| 关 键 词： | 开口 补强 应力集中系数 补强比 |
ANALYSIS ON THE SHAPE SELECTION OF COMPOSITE LAMINATES'CUTOUT REFORCEMENT |
| |
| Junwei Xie Xiaojing Zhang Hai Wang.ANALYSIS ON THE SHAPE SELECTION OF COMPOSITE LAMINATES'CUTOUT REFORCEMENT[J].Acta Mechnica Solida Sinica,2011(Z1). |
| |
| Authors: | Junwei Xie Xiaojing Zhang Hai Wang |
| |
| Institution: | Junwei Xie Xiaojing Zhang Hai Wang(School of Aeronautics and Astronautics,Shanghai Jiaotong University,Shanghai,200240) |
| |
| Abstract: | This paper study four types of cutout reforcement on uniaxial tension composite laminate with central circle hole.Firstly,it is researched that how those reforcements influences the first ply failure strength based on Hoffman criterion,the maximum stress and strain around the opening,and then we conclude which reforcement is the most effective one.Secondly,through parametric modeling,it is studied that how reforcement's geometric factors affect on composite laminate's stength.And the study shows that failur... |
| |
| Keywords: | cutout reforcement stress concentration factor reforcement rate |
| 本文献已被 CNKI 等数据库收录！ |
|
