Transverse Cracking and Delamination in Cross-Ply GR/EP Composites under Dry, Saturated and Immersed Fatigue

Abstract

Motivated by experimental observations, the finite element method is employed to model the competition between the transverse cracking and delamination modes of failure that occur in cross-ply AS4/3501-6 gr/ep coupons subjected to fatigue. The results explain the extensive delaminations and reduced crack densities that arise under immersed fatigue, as compared with fatigue in air.

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Document Details

Document Type
Technical Report
Publication Date
Nov 18, 1997
Accession Number
ADA333425

Entities

People

  • Alex S. Selvarathinam
  • Y. J. Weitsman

Organizations

  • University of Tennessee

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Availability
  • Classification
  • Competition
  • Composite Materials
  • Crack Tips
  • Cracks
  • Delamination
  • Engineering
  • Failure Mode And Effect Analysis
  • Finite Element Analysis
  • Hydrostatic Pressure
  • Mechanics
  • Military Research
  • Observation
  • Stresses
  • Transverse

Fields of Study

  • Materials science

Readers

  • Structural Health Monitoring of Composite Structures.