Cumulative Damage Model for Advanced Composite Materials.

Abstract

This report presents the details of a methodology developed study in which cumulative damage in composite laminates is mathematically modeled. The basic concept adopted in the theoretical development is to regard the accumulation of damage in laminates as a load and/or time dependent process. The process begins with the initiation of sublaminate cracks at locations where dominating material flaws exist; under sustaining load, then, these cracks may grow and coalesce to form a large laminate crack, or cracked regions. Thus, the requirement of the model is to be able to describe the process and thereby relate the laminate strength, stiffness, and service life properties as a function of loading history.

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Document Details

Document Type
Technical Report
Publication Date
Mar 09, 1984
Accession Number
ADA144840

Entities

People

  • A. S. D. Wang
  • C. S. Lei
  • P. C. Chou
  • R. B. Bucinell

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Composite Materials
  • Delamination
  • Elastic Properties
  • Engineering
  • Epoxy Composites
  • Experimental Data
  • Failure Mode And Effect Analysis
  • Laminates
  • Materials Laboratories
  • Materials Science
  • Materials Testing
  • Mechanical Engineering
  • Mechanics
  • Plastic Explosives
  • Random Variables
  • Test Methods

Fields of Study

  • Materials science

Readers

  • Structural Health Monitoring of Composite Structures.
  • Theoretical Analysis.