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Finite Element Analysis of Mechanical Properties of 3 D Surface‐Core Braided Composites
Author(s) -
Sun Jin,
Wang Yu,
Zhou Guangming,
Wang Xinwei
Publication year - 2018
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.24035
Subject(s) - materials science , finite element method , composite material , core (optical fiber) , surface (topology) , deformation (meteorology) , composite number , boundary value problem , parameterized complexity , structural engineering , geometry , mathematics , mathematical analysis , combinatorics , engineering
Three‐dimensional (3D) surface‐core braided composite is a new type of braided composite with a skin‐core structure. Three parameterized structure models of unit‐cell located in the interior, surface and corner regions are established. Under the general periodic boundary conditions, predictions of effective elastic properties and mechanical responses are presented by using the finite element method. The deformation and stress distribution of three unit‐cell models are demonstrated and the effects of braiding parameters on the mechanical properties are investigated in detail. Numerical results indicate that the three unit‐cells have distinctive properties and the effects of surface and corner regions on the mechanical properties of the whole material should be considered to obtain accurate results. Good agreement between the calculated results and available experimental data verifies the applicability of the proposed models. POLYM. COMPOS., 39:1076–1088, 2018. © 2016 Society of Plastics Engineers