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SHEN Lingyan, LI Yongchi, WANG Zhihai, et al. Experimental and theoretical research on the dynamic properties of 3D orthogonal woven E-glass fiber/epoxy composites[J]. Acta Materiae Compositae Sinica, 2012, (4): 157-162.
Citation: SHEN Lingyan, LI Yongchi, WANG Zhihai, et al. Experimental and theoretical research on the dynamic properties of 3D orthogonal woven E-glass fiber/epoxy composites[J]. Acta Materiae Compositae Sinica, 2012, (4): 157-162.
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Experimental and theoretical research on the dynamic properties of 3D orthogonal woven E-glass fiber/epoxy composites

  • Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China

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  • Received Date: July 12, 2011
  • Revised Date: November 02, 2011
    Abstract
  • The dynamic properties of 3D orthogonal woven E-glass fiber/epoxy composites were studied experimentally under both the dynamic and static loading conditions, and the stress-strain curves were obtained. The results show that the responses of the composites are of obviously nonlinear and anisotropic characteristics, and of the strain rate sensitivity as well. In theory, a macroscopic damage variable dependent of strain and strain rate is put forward to describe these characteristics, and a nonlinear viscoelastic model is presented for the composites with damage. The stress-strain curves fitted by the modified constitutive equation are in good agreement with the experimental ones.
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