NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Probabilistic analysis of structures involving random stress-strain behaviorThe present methodology for analysis of structures with random stress strain behavior characterizes the uniaxial stress-strain curve in terms of (1) elastic modulus, (2) engineering stress at initial yield, (3) initial plastic-hardening slope, (4) engineering stress at point of ultimate load, and (5) engineering strain at point of ultimate load. The methodology is incorporated into the Numerical Evaluation of Stochastic Structures Under Stress code for probabilistic structural analysis. The illustrative problem of a thick cylinder under internal pressure, where both the internal pressure and the stress-strain curve are random, is addressed by means of the code. The response value is the cumulative distribution function of the equivalent plastic strain at the inner radius.
Document ID
19910047333
Document Type
Conference Paper
Authors
Millwater, H. R. (Southwest Research Inst. San Antonio, TX, United States)
Thacker, B. H. (Southwest Research Institute San Antonio, TX, United States)
Harren, S. V. (Illinois, University Chicago, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1991
Subject Category
STRUCTURAL MECHANICS
Report/Patent Number
AIAA PAPER 91-0919
Meeting Information
AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference(Baltimore, MD)
Funding Number(s)
CONTRACT_GRANT: NAS3-24389
Distribution Limits
Public
Copyright
Other