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Proceedings Paper

Numerical investigation of thermo-mechanical behaviour of composite under local laser heating
Author(s): Xiao Li; Xiaowu Ni; Zhonghua Shen; Zewen Li
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Paper Abstract

Thermomechanical behaviour of a glass/epoxy composite plate under local laser irradiation is investigated. Physico-chemical transformations and gas transport in a matrix and fibers are describe by Arrhenius and Darcy's law. The changes of material thermal properties are expressed in terms of the volume fractions of fiber, resin, gas and char. At the same time, we take into account the effects of pore pressure and elevating temperature on thermal stresses and strains. It is established that transverse stress, radius stress and interlayer shear caused by local heating and pore pressure are causes of delamination and cracking of composite plates under laser heating. And interlayer shear can lead failure of composite fast.

Paper Details

Date Published: 15 October 2015
PDF: 13 pages
Proc. SPIE 9671, AOPC 2015: Advances in Laser Technology and Applications, 96711X (15 October 2015); doi: 10.1117/12.2202944
Show Author Affiliations
Xiao Li, Nanjing Univ. of Science and Technology (China)
Xiaowu Ni, Nanjing Univ. of Science and Technology (China)
Zhonghua Shen, Nanjing Univ. of Science and Technology (China)
Zewen Li, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 9671:
AOPC 2015: Advances in Laser Technology and Applications
Shibin Jiang; Lijun Wang; Chun Tang; Yong Cheng, Editor(s)

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