Mechanical Performance of Composite Laminate with Oblique Splicing Ply

Abstract:

In order to determine the mechanical properties of the carbon/polyurethane composite laminate with splicing ply, the tensile testing were performed on laminate specimens which has been designed specially. The tensile elastic modulus and tensile strength were obtained from the experimental datum. The breakage happened in place of joint gap. The stiffness of the composite laminate was affected by the oblique splicing ply significantly, but the strength is mainly determined by the continuous layers. The laminate is failure in low load. The numerical analyses using linear elastic and progressive damage model were conducted with the commercial the finite element model (FEM) software ABAQUS. The linear elastic FEM is established to calculate the inter-laminar stress. The progressive model is used to predict the strength on the basis of numerical computation. There are three different criteria used here in the strength prediction. By combining the damage model with classical lamination theory, the behavior of laminates under plane stress loading is predicted. The results show that the experimental tests are in good agreement with the finite element simulation.

• Periodical: Advanced Materials Research (Volumes 476-478)
• Pages: 600-604
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.476-478.600
• Online since: February 2012
• Authors: Ling Wang, Pu Rong Jia, Liang Li
• Keywords: Composite Laminate, Finite Element Method (FEM), Layer Splice, Tension Strength

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