Edge Delamination In Angle-Ply Composite Laminates. Part 5.

Abstract

Edge delamination has caused severe concern in the design and analysis of advanced composite materials and structures. Due to its complex nature, very limited knowledge for the problem is currently available. It involves not only geometric and material discontinuities but also inherently coupled mode I, II and III fracture in the layered anisotropic system. Based on complex-variable stress potentials in the anisotropic elasticity theory and eigenfunction expansion, exact orders of the crack-tip stress singularity and complete field solutions are obtained. Results are given for edge-delaminated composites subjected to uniform axial extension for illustrative purposes. Effects of geometric, lamination, and crack variables are determined. jg p.5

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1981
Accession Number
ADA302536

Entities

People

  • S. S. Wang

Organizations

  • University of Illinois Urbana–Champaign

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aeronautics
  • Air Force
  • Aircrafts
  • Complex Variables
  • Composite Materials
  • Crack Tips
  • Delamination
  • Differential Equations
  • Epoxy Composites
  • Graphite Epoxy Composites
  • Jet Propulsion
  • Laminates
  • Materials
  • Materials Laboratories
  • Mechanics
  • Navy
  • Three Dimensional

Readers

  • Calculus or Mathematical Analysis
  • Structural Health Monitoring of Composite Structures.