Mechanical characterization of a unidirectional pultruded composite lamina using micromechanics and numerical homogenization

Haohui Xin, Ayman Mosallam, Yuqing Liu, Milan Veljkovic, Jun He

Research output: Contribution to journalArticleScientificpeer-review

7 Citations (Scopus)
7 Downloads (Pure)

Abstract

In this paper, analytical and numerical homogenization methods are proposed to effectively simulate the macroscopic characteristics of a pultruded composite lamina. A continuum damage model was implemented via user material subroutine to model fiber failure, while the Mohr-Coulomb plastic criterion is employed to model matrix damage. In order to simulate the damage of the fiber-matrix interface, the relationship between traction and displacement is established. The proposed theoretical and numerical models were verified by tensile, compressive, and shear test results. The outcomes of this study indicated that both theoretical, numerical prediction values agree well with experimental verification results confirming the validity of the proposed methodology in providing a reliable reference for structural design of pultruded fiber reinforced polymeric (FRP) composite structures.

Original languageEnglish
Pages (from-to)101-118
Number of pages18
JournalConstruction and Building Materials
Volume216
DOIs
Publication statusPublished - 2019

Keywords

  • Engineering constants
  • Micro-mechanic analysis
  • Mohr-Coulomb plastic criterion
  • Numerical homogenization
  • Pultruded unidirectional GFRP lamina

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