Accession Number:

ADA589008

Title:

Uncertainty Modeling in the Analysis and Design of Damage Tolerant Composite Structural Systems

Descriptive Note:

Final rept. 1 Apr 2005-31 May 2009

Corporate Author:

RENSSELAER POLYTECHNIC INST TROY NY

Personal Author(s):

Report Date:

2005-04-01

Pagination or Media Count:

9.0

Abstract:

The final stage of the proposed research was completed during this performance period. The focus of this work was on integrating the composite damage analysis programs into a framework where they could be effectively used for design optimization. Critical to this phase of the work was a problem formulation that took into consideration the multiscale nature of the damage process, and fully accounted for the residual life in the composite structure in a post-failure local failure mode. A system effectiveness approach was developed as a logical framework for the design problem formulation. This approach fully accounts for the probabilities of going from one state of structural damage to another. The problem formulation also allows for creating objective criteria that include system reliability and residual life in the structure. The approach was demonstrated using simple composite design problems.

Subject Categories:

  • Administration and Management
  • Operations Research

Distribution Statement:

APPROVED FOR PUBLIC RELEASE