Failure model for rate-dependent polymer matrix composite laminates under high-velocity impact

Linfa Zhu, Aditi Chattopadhyay, Robert K. Goldberg

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

A modified Hashin failure model is developed to characterize different failure modes related to high-velocity impact of composite laminates. Hashin's compressive fiber failure mode has been extended to consider the shear stress effect. Several micromechanics-based degradation rules are developed and applied to the stress and material property calculations according to different failure modes after the corresponding failure criterion is satisfied. This model has been implemented into a recently developed micromechanics model. Computational results show that this model is able to address shear failure, delamination, and tearing failure observed in the high-velocity impact of composite laminates.

Original languageEnglish (US)
Pages (from-to)132-139
Number of pages8
JournalJournal of Aerospace Engineering
Volume21
Issue number3
DOIs
StatePublished - 2008

Keywords

  • Composite materials
  • Failure modes
  • Laminates
  • Polymers
  • Velocity

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Materials Science(all)
  • Aerospace Engineering
  • Mechanical Engineering

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