A Synergistic Damage Mechanics Approach to Durability of Composite Structures

Abstract

This final progress report summarizes the accomplishments of the three tasks conducted during the contract period. Task I dealt with mechanisms of damage under static and fatigue loading of composite laminates and laid the physical basis for the modeling efforts that followed in Task 2 and Task 3. Task 2 focused on the formulation of stiffness-damage relationships and provided a procedure for assessment of material coefficients experimentally as well as by computational simulation. Finally, Task 3 treated evolution of damage. A model was developed that predicted the increase of transverse crack density with cycles of a constant amplitude. The overall outcome of the project was a methodology for durability assessment of composite materials, in accordance with the goals and objectives set in the proposal.

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Document Details

Document Type
Technical Report
Publication Date
Jul 30, 2001
Accession Number
ADA393763

Entities

People

  • Ramesh Talreja

Organizations

  • Georgia Tech

Tags

Communities of Interest

  • Air Platforms
  • Human Systems

DTIC Thesaurus Topics

  • Composite Materials
  • Composite Structures
  • Experimental Data
  • Laminates
  • Materials
  • Materials Science
  • Materials Testing
  • Mechanics
  • Micromechanics
  • Modulus Of Elasticity
  • Orientation (Direction)
  • Personal Information Managers
  • Resilience
  • Shear Stresses
  • Stiffness
  • Transverse

Readers

  • Computational Modeling and Simulation
  • Instructional Design and Training Evaluation.
  • Structural Health Monitoring of Composite Structures.