High fidelity simulation of low velocity impact behavior of CFRP laminate

Masaya Ebina, Akinori Yoshimura, Kenichi Sakaue, Anthony M. Waas

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In this paper, a finite element (FE) model which simulates damage extent of CFRP laminate subjected to low velocity face-on impact is proposed. The validity of the model is demonstrated by comparing experimental and numerical results for two different CFRPs with different stacking sequence and boundary conditions. Experimental damage extent were obtained from the drop-weight test and non-destructive inspections (C-scan, radiograph and X-ray CT). Numerical results were obtained from FE analyses done on Abaqus/Explicit 2016. In the present model, each damage mode is modeled separately. Fiber damage is modeled by smeared crack model (SCM). In-plane ply cracks are modeled by the enhanced continuum damage mechanics (ECDM) model, which is composed of continuum damage mechanics (CDM) and SCM. Delamination between laminae is modeled by cohesive behavior based on the contact formulation. For both CFRPs, numerical results obtained from the present model show reasonable agreement with experimental results.

Original languageEnglish
Pages (from-to)166-179
Number of pages14
JournalComposites Part A: Applied Science and Manufacturing
Volume113
DOIs
Publication statusPublished - 2018 Oct 1

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Keywords

  • B. Impact behavior
  • B. Transverse cracking
  • C. Damage mechanics
  • C. Finite element analysis (FEA)

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials

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