Probabilistic evaluation of fuselage-type composite structures
Abstract
A methodology is developed to computationally simulate the uncertain behavior of composite structures. Uncertain behavior is the consequence of the random variation (scatter) of the primitive (independent random) variables at the constituent, ply, laminate and structural levels. This methodology is implemented in the IPACS (Integrated Probabilistic Assessment of Composite Structures) computer code. A fuselage-type composite structure is analyzed to demonstrate the code's capability. The probability distribution functions of structural responses are computed. Sensitivity of a given structural response to each primitive variable is also determined from the analyses.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- November 1991
- Bibcode:
- 1991STIN...9312735S
- Keywords:
-
- Aircraft Structures;
- Composite Structures;
- Computer Programs;
- Computerized Simulation;
- Fuselages;
- Laminates;
- Probability Distribution Functions;
- Structural Analysis;
- Independent Variables;
- Ply Orientation;
- Random Variables;
- Structural Mechanics