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Journal of Shanghai University >

2011 , Vol. 17 >Issue 6: 746 - 750

DOI: https://doi.org/10.3969/j.issn.1007-2861.2011.06.011

Mathematics.Physics and Chemistry

Stress Relaxation in Prepreg Composites Due to Z-pinning

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Received date: 2010-05-24

  Online published: 2011-12-28

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Abstract

The microstructure of laminates is changed by z-pinning. In order to understand the fiber stress distribution in prepreg composites with insertion of z-pins, finite element analyses are conducted based upon the micromechanics model. The uncured resin matrix is modeled by viscoleastic constitutive equations. The fiber stress relaxation behavior with time is revealed.

Key words： composites laminate; fiber waviness; stress relaxation; viscoelastic

Cite this article

SHU Xiao-Guang, ZHANG Dun-Gan . Stress Relaxation in Prepreg Composites Due to Z-pinning[J]. Journal of Shanghai University, 2011 , 17(6) : 746 -750 . DOI: 10.3969/j.issn.1007-2861.2011.06.011

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