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Mathematical Problems in Engineering
Volume 2015 (2015), Article ID 964062, 7 pages
http://dx.doi.org/10.1155/2015/964062
Research Article

Damage Monitoring and Analysis of the Structure Effect on Strength of Composite Laminates

Kaohsiung University of Applied Sciences, 414 Chien Kung Road, Sanmin District, Kaohsiung City 80778, Taiwan

Received 25 September 2014; Accepted 12 December 2014

Academic Editor: Mo Li

Copyright © 2015 Chia-Chin Chiang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Carbon fiber reinforced polymer (CFRP) composite materials have been widely used in industries in recent years. The design of composite structures, and open-holes for joining are also widely used. Understanding of open-hole behavior is very necessary for the design of complex structures. In this paper, the initial damage, progressive damage analysis, and the effect of structure on strength of composite laminates are investigated. Based on Hashin’s criteria, three-dimensional model of composite laminates containing a central open-hole is developed. The model is conducted by finite element analysis, commercial Abaqus software to simulate the whole process of initial damage, propagation of damage, and analysis of the effect of a few structures on strength of composite laminates containing open-hole.