NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Probabilistic boundary element methodThe purpose of the Probabilistic Structural Analysis Method (PSAM) project is to develop structural analysis capabilities for the design analysis of advanced space propulsion system hardware. The boundary element method (BEM) is used as the basis of the Probabilistic Advanced Analysis Methods (PADAM) which is discussed. The probabilistic BEM code (PBEM) is used to obtain the structural response and sensitivity results to a set of random variables. As such, PBEM performs analogous to other structural analysis codes such as finite elements in the PSAM system. For linear problems, unlike the finite element method (FEM), the BEM governing equations are written at the boundary of the body only, thus, the method eliminates the need to model the volume of the body. However, for general body force problems, a direct condensation of the governing equations to the boundary of the body is not possible and therefore volume modeling is generally required.
Document ID
19910015016
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cruse, T. A. (Southwest Research Inst. San Antonio, TX, United States)
Raveendra, S. T. (Southwest Research Inst. San Antonio, TX, United States)
Date Acquired
September 6, 2013
Publication Date
April 1, 1989
Publication Information
Publication: NASA. Lewis Research Center, Structural Integrity and Durability of Reusable Space Propulsion Systems
Subject Category
Structural Mechanics
Accession Number
91N24329
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available