Geometrically nonlinear analysis of matrix cracking and delamination in composites with floating node method

Jie Zhi, Bo Yang Chen, Tong Earn Tay

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)
38 Downloads (Pure)

Abstract

In this paper, the recently-developed floating node method is extended for damage analysis of laminated composites with large deformations. Strong discontinuities including interfacial delamination and matrix cracks are explicitly represented by geometrically nonlinear kinematics. Interactions between these two kinds of failure patterns are enabled through enriched elements equipped with floating nodes. A cohesive zone model is utilized for the damage process zone. A general implicit procedure with user-defined elements is developed for both quasi-static and dynamic analysis. The performance of this formulation is verified with two benchmark simulations, involving buckling-induced delamination and low-velocity impact damage. The results presented show good quantitative and qualitative agreements with results from literature.

Original languageEnglish
Pages (from-to)1-17
Number of pages17
JournalComputational Mechanics
DOIs
Publication statusE-pub ahead of print - 15 Jun 2018

Keywords

  • Buckling
  • Discrete crack model
  • Large deformation
  • Low velocity impact

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