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Probabilistic finite elements for fracture and fatigue analysis

Content Provider	NASA Technical Reports Server (NTRS)
Author	Belytschko, T. Liu, W. K. Lawrence, M. Besterfield, G. H.
Copyright Year	1989
Description	The fusion of the probabilistic finite element method (PFEM) and reliability analysis for probabilistic fracture mechanics (PFM) is presented. A comprehensive method for determining the probability of fatigue failure for curved crack growth was developed. The criterion for failure or performance function is stated as: the fatigue life of a component must exceed the service life of the component; otherwise failure will occur. An enriched element that has the near-crack-tip singular strain field embedded in the element is used to formulate the equilibrium equation and solve for the stress intensity factors at the crack-tip. Performance and accuracy of the method is demonstrated on a classical mode 1 fatigue problem.
File Size	263528
Page Count	16
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19910015019
Archival Resource Key	ark:/13960/t6450kk02
Language	English
Publisher Date	1989-04-01
Access Restriction	Open
Subject Keyword	Structural Mechanics Finite Element Method Service Life Stress Analysis Crack Tips Numerical Analysis Stress Intensity Factors Probability Theory Performance Prediction Reliability Engineering Stress Measurement Crack Initiation Crack Propagation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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