NDLI: Probabilistic prediction of lifetimes of ceramic parts

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Probabilistic prediction of lifetimes of ceramic parts

Content Provider	NASA Technical Reports Server (NTRS)
Author	Powers, Lynn Baker, Eric H. Gyekenyesi, John P. Jadaan, Osama M. Nemeth, Noel N. Palfi Sr., Tamas Reh, Stefan
Copyright Year	2006
Description	ANSYS/CARES/PDS is a software system that combines the ANSYS Probabilistic Design System (PDS) software with a modified version of the Ceramics Analysis and Reliability Evaluation of Structures Life (CARES/Life) Version 6.0 software. [A prior version of CARES/Life was reported in Program for Evaluation of Reliability of Ceramic Parts (LEW-16018), NASA Tech Briefs, Vol. 20, No. 3 (March 1996), page 28.] CARES/Life models effects of stochastic strength, slow crack growth, and stress distribution on the overall reliability of a ceramic component. The essence of the enhancement in CARES/Life 6.0 is the capability to predict the probability of failure using results from transient finite-element analysis. ANSYS PDS models the effects of uncertainty in material properties, dimensions, and loading on the stress distribution and deformation. ANSYS/CARES/PDS accounts for the effects of probabilistic strength, probabilistic loads, probabilistic material properties, and probabilistic tolerances on the lifetime and reliability of the component. Even failure probability becomes a stochastic quantity that can be tracked as a response variable. ANSYS/CARES/PDS enables tracking of all stochastic quantities in the design space, thereby enabling more precise probabilistic prediction of lifetimes of ceramic components.
File Size	42530
Page Count	1
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20110013080
Archival Resource Key	ark:/13960/t0gv0k66c
Language	English
Publisher Date	2006-09-01
Access Restriction	Open
Subject Keyword	Man/system Technology And Life Support Augmentation Nasa Programs Finite Element Method Deformation Life Durability Probability Theory Ceramics Reliability Failure Loads Forces Crack Propagation Structural Analysis Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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