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Proceedings Paper

Theoretical and experimental characteristics on residual stresses of advanced polymer composites
Author(s): Zhan-Sheng Guo; Junqian Zhang; Xingming Guo; Hongjiu Hu
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Paper Abstract

The residual stresses and mechanisms causing residual stresses in thermoset polymer composites were considered. The relative importance of the different mechanisms was analyzed. The residual stresses were determined analytically by viscoelastic model in addition to an experiment. The linear viscoelastic model was used to calculate of residual stresses in each layer of laminated composites. The fiber Bragg grating (FBG) strain sensor was used to measure the residual stresses throughout cure. The results are agreed well. The viscoelasticity of composites should be considered during calculating the residual stresses, and FBG strain sensor is shown to be a reliable for an accurate measurement of the residual stresses.

Paper Details

Date Published: 8 April 2008
PDF: 8 pages
Proc. SPIE 6934, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2008, 693409 (8 April 2008); doi: 10.1117/12.779685
Show Author Affiliations
Zhan-Sheng Guo, Shanghai Univ. (China)
Junqian Zhang, Shanghai Univ. (China)
Xingming Guo, Shanghai Univ. (China)
Hongjiu Hu, Shanghai Univ. (China)


Published in SPIE Proceedings Vol. 6934:
Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2008
Peter J. Shull; H. Felix Wu; Aaron A. Diaz; Dietmar W. Vogel, Editor(s)

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