期刊
JOURNAL OF COMPOSITE MATERIALS
卷 43, 期 26, 页码 3239-3263出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/0021998309345294
关键词
stiffened structures; postbuckling; collapse; interlaminar damage; ply damage; virtual crack closure technique
资金
- Cooperative Research Centre for Advanced Composite Structures (CRC-ACS) Ltd.
- Australian Postgraduate Awards Scheme
- CRC-ACS
- German Academic Exchange Service
- Italian Ministry of Foreign Affairs
- Australian Government
- European Commission [AST3-CT-2003-502723]
A methodology for analysing the degradation and collapse in post-buckling composite structures is proposed. One aspect of the methodology predicts the initiation of interlaminar damage using a strength criterion applied with a global-local analysis technique. A separate approach represents the growth of a pre-existing interlaminar damage region with user-defined multi-point constraints that are controlled based on the Virtual Crack Closure Technique. Another aspect of the approach is a degradation model for in-plane ply damage mechanisms of fiber fracture, matrix cracking, and fiber-matrix shear. The complete analysis methodology was compared to experimental results for two fuselage-representative composite panels tested to collapse. For both panels, the behavior and structural collapse were accurately captured, and the analysis methodology provided detailed information on the development and interaction of the various damage mechanisms.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据