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Proceedings Paper

Micromechanical experiments of interlaminar deformation and damage in quasi-isotropic thermoplastic composite laminates
Author(s): Jingwei Tong; Min Shen; Shibin Wang; Hong-Qi Li; Francesco Ginesu; Filippo Bertolino
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Paper Abstract

IN this paper, a system of micromechanical experiments is established combining microscopic moire interferometry of high spatial resolution with optical microscope. Under uniaxial tensile loading, the quantitative local-field of interlaminar displacements of the AS4/PEEK laminates has been measured. The pictures of in-situ interlaminar damage initiation and growth process have been simultaneously collected by the experimental system continuously. The major characteristic of interlaminar damage of the laminate under tensile loading is the group of matrix cracks in 90/90 plies, which are formed due to fiber- matrix interface debondings, and the number of cracks increases when the load increases. The u fields of interlaminar displacement of a matrix crack under certain loads are gained using the microscopic moire interferometry.

Paper Details

Date Published: 29 May 2002
PDF: 4 pages
Proc. SPIE 4537, Third International Conference on Experimental Mechanics, (29 May 2002); doi: 10.1117/12.468828
Show Author Affiliations
Jingwei Tong, Tianjin Univ. (China)
Min Shen, Tianjin Univ. (China)
Shibin Wang, Tianjin Univ. (China)
Hong-Qi Li, Tianjin Univ. (China)
Francesco Ginesu, Univ. of Cagliari (Italy)
Filippo Bertolino, Univ. of Cagliari (Italy)

Published in SPIE Proceedings Vol. 4537:
Third International Conference on Experimental Mechanics
Xiaoping Wu; Yuwen Qin; Jing Fang; Jingtang Ke, Editor(s)

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