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http://dx.doi.org/10.7734/COSEIK.2015.28.5.497

Reduction of Free Edge Peeling Stress in Composite Laminates under Bending Load  

Jung, Seok-Joo (Department of Mechanical Engineering, Dongguk Univ.)
Sung, Myung-Kyun (Department of Mechanical Engineering, Dongguk Univ.)
Kim, Heung Soo (Department of Mechanical, Robotics and Energy Engineering, Dongguk Univ.)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.28, no.5, 2015 , pp. 497-502 More about this Journal
Abstract
In this paper, a stress function-based approach was proposed to analyze the reduction of free-edge peeling stress in smart composite laminates using piezoelectric actuator under bending load. Electro-mechanically coupled governing equation was obtained by complimentary virtual work principle. The stress state was solved by the generalized eigenvalue procedure. The free-edge peeling stress of smart composite laminates was reduced by the piezoelectric actuation. The reduction rate of peeling stress in cross-ply composite laminate is larger than that in angle ply composite laminate.
Keywords
free-edge; composite laminate; peeling stress; piezoelectric actuator;
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