Investigation of Modeling of Damage Growth in Composite Laminates

Abstract

Damage initiation and growth has been studied in several material systems and two notched geometries, revealing generic characteristics of damage development and its relationship to microstructure. Stress redistribution has been studied with photoelastic methods and simulated analytically. Adiabatic thermoelastic methods for strain field analysis under dynamic loading have been developed and the first micromechanical formulation of that problem has been achieved. A formulation of the singular stress problem in the boundary layer near a hole in composite laminates has been completed. And a brief study of the applicability of chaos theory to damage development representation was conducted. A critical element model of remaining strength and life of notched composite laminates has been constructed and validated.

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Document Details

Document Type
Technical Report
Publication Date
Sep 25, 1988
Accession Number
ADA202433

Entities

People

  • C. E. Bakis
  • Doron Shalev
  • H. R. Yih
  • K. Reifsnider
  • W. W. Stinchcomb

Organizations

  • Virginia Tech

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Boundary Layer
  • Civil Engineering
  • Composite Materials
  • Computational Science
  • Computer Programs
  • Elastic Properties
  • Failure Mode And Effect Analysis
  • Fiber Reinforced Composites
  • Fungi
  • Laminates
  • Materials
  • Materials Science
  • Materials Testing
  • Measurement
  • Mechanical Working
  • Mechanics

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Mechanical Engineering/Mechanics of Materials.
  • Reinforced Composite Materials