Mechanisms of Microdamage Development in Laminated Composites in Thermo-Mechanical Fatigue

Abstract

This report results from a contract tasking Lulea University of Technology as follows: The objectives of the proposed research project are (a) to reveal the mechanisms of damage initiation and damage propagation in thermo-mechanical fatigue and to identify governing parameters, (b) to describe the evolution of the actual damage modes by evolution laws, and (c) to develop efficient methodology for parameter identification in the evolution laws. We expect that the proposed research will lead to deeper fundamental understanding of the observed trends in thermal fatigue, development of predictive tool to describe composites degradation in thermal fatigue, cost savings due to 'smart' testing based on the accumulated knowledge, and structures with improved resistance to thermal cracking will be designed.

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Document Details

Document Type
Technical Report
Publication Date
Sep 20, 2007
Accession Number
ADA524336

Entities

People

  • Janis Varna

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Composite Materials
  • Crack Tips
  • Delamination
  • Elastic Properties
  • Fatigue Tests (Mechanics)
  • Fracture (Mechanics)
  • Laminates
  • Materials
  • Materials Testing
  • Mechanics
  • Orientation (Direction)
  • Personal Information Managers
  • Reinforced Plastics
  • Stress Concentration
  • Stresses
  • Thermal Fatigue
  • Thermal Stresses

Fields of Study

  • Engineering

Readers

  • Structural Health Monitoring of Composite Structures.
  • Systems Analysis and Design
  • Technical Research and Report Writing.