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Journal of Nanomaterials
Volume 2013 (2013), Article ID 671469, 4 pages
Research Article

Analytical and Experimental Study of Residual Stresses in CFRP

1Department of Mechanical Engineering, National Kaohsiung University of Applied Sciences, 415 Chien-Kung Road, Kaohsiung 807, Taiwan
2Department of Chemical Engineering, I-Shou University, No. 1, Sec. 1, Syuecheng Rd., Kaohsiung 84001, Taiwan

Received 15 September 2013; Accepted 7 November 2013

Academic Editor: Liang-Wen Ji

Copyright © 2013 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.


Fiber Bragg Grating sensors (FBGs) have been utilized in various engineering and photoelectric fields because of their good environment tolerance. In this research, residual stresses of carbon fiber reinforced polymer composites (CFRP) were studied using both experimental and analytical approach. The FBGs were embedded inside middle layers of CFRP to study the formation of residual stress during curing process. Finite element analysis was performed using ABAQUS software to simulate the CFRP curing process. Both experimental and simulation results showed that the residual stress appeared during cooling process and the residual stresses could be released when the CFRP was machined to a different shape.