TY - GEN
T1 - Stresses along the hole boundary of unsymmetric composite laminates via boundary element method
AU - Hwu, Chyanbin
AU - Chang, H. W.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - In boundary element analysis if the internal point coincides with the boundary nodes, which is usually required for the problem with holes, the associated integrals may become singular. Although this problem has been well treated for two-dimensional or plate bending analysis, no report can be found for the coupled stretching-bending analysis of unsymmetric composite laminates. To avoid the singular problem, in this paper the components of stress resultants, bending moments, in-plane strains and plate curvatures in the tangential direction are suggested to be calculated by finite difference method, whereas the components in normal direction are calculated with the aid of constitutive laws. To prove the correctness of the proposed calculation method, a simply supported unsymmetric laminate with two rectangular holes is analyzed and compared with the results obtained by finite element method.
AB - In boundary element analysis if the internal point coincides with the boundary nodes, which is usually required for the problem with holes, the associated integrals may become singular. Although this problem has been well treated for two-dimensional or plate bending analysis, no report can be found for the coupled stretching-bending analysis of unsymmetric composite laminates. To avoid the singular problem, in this paper the components of stress resultants, bending moments, in-plane strains and plate curvatures in the tangential direction are suggested to be calculated by finite difference method, whereas the components in normal direction are calculated with the aid of constitutive laws. To prove the correctness of the proposed calculation method, a simply supported unsymmetric laminate with two rectangular holes is analyzed and compared with the results obtained by finite element method.
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M3 - Conference contribution
AN - SCOPUS:85018537575
T3 - ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials
BT - ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials
PB - European Conference on Composite Materials, ECCM
T2 - 17th European Conference on Composite Materials, ECCM 2016
Y2 - 26 June 2016 through 30 June 2016
ER -