Stresses along the hole boundary of unsymmetric composite laminates via boundary element method

Chyanbin Hwu, H. W. Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationECCM 2016 - Proceeding of the 17th European Conference on Composite Materials
PublisherEuropean Conference on Composite Materials, ECCM
ISBN (Electronic)9783000533877
Publication statusPublished - 2016 Jan 1
Event17th European Conference on Composite Materials, ECCM 2016 - Munich, Germany
Duration: 2016 Jun 262016 Jun 30

Publication series

NameECCM 2016 - Proceeding of the 17th European Conference on Composite Materials

Other

Other17th European Conference on Composite Materials, ECCM 2016
CountryGermany
CityMunich
Period16-06-2616-06-30

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites

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  • Cite this

    Hwu, C., & Chang, H. W. (2016). Stresses along the hole boundary of unsymmetric composite laminates via boundary element method. In ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials (ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials). European Conference on Composite Materials, ECCM.