Interlaminar Stress Distributions of Notched Quasi-Isotropic AS4/PEEK Laminate

Bo Sheng Huang; Guo Hua Zhao; Zhao Han Wang

doi:10.4028/www.scientific.net/AMM.556-562.725

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 556-562Interlaminar Stress Distributions of Notched...

Interlaminar Stress Distributions of Notched Quasi-Isotropic AS4/PEEK Laminate

Abstract:

This paper investigates the interlaminar stress distributions of notched angle-ply thermoplastic laminate under tension numerically. The representative AS4/PEEK laminate with configuration of was studied by finite element code ANSYS. Computation results show: The interlaminar stress concentrations are evident and localized in the vicinity of the hole and the two free sides, and the maximum values always appear near the hole. Meanwhile, at interfaces of-45/+45 and +45/0, the concentration of peel stress is evident, while at interfaces of 90/-45 and 0/90, the concentration of shear stress is evident. Further analysis demonstrates interlaminar shearing stress is the dominating stress and may be the leading cause of laminate delamination.

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Periodical:

Applied Mechanics and Materials (Volumes 556-562)

Pages:

725-728

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.556-562.725

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Online since:

May 2014

Authors:

Bo Sheng Huang, Guo Hua Zhao*, Zhao Han Wang

Keywords:

AS4/PEEK, Interlaminar Stress, Quasi-Isotropic Laminate, Stress Concentration

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