Accession Number:

ADA393763

Title:

A Synergistic Damage Mechanics Approach to Durability of Composite Structures

Descriptive Note:

Final progress rept. 1 Jun 1997-31 May 2001

Corporate Author:

GEORGIA INST OF TECH ATLANTA SCHOOL OFAEROSPACE ENGINEERING

Personal Author(s):

Report Date:

2001-07-30

Pagination or Media Count:

24.0

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.

Subject Categories:

  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE