NDLI: Fatigue Threshold Considerations During Crack Propagation

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Bian, Lichun Lim, Jae-Kyoo
Copyright Year	2002
Abstract	The angled crack problem has been given special attention in the recent years by fracture mechanics investigators due to its close proximity to realistic conditions in engineering structures. In this paper, an investigation of fatigue crack propagation in steel pipes containing an inclined surface crack is presented. The inclined angle of the crack with respect to the axis of loading varied between 0° and 90°. During the fatigue tests, the growth of the fatigue crack was monitored using the AC potential drop technique. Based on the concept of the effective stress intensity factor range, Δkeff, the rate of fatigue crack propagation, db/dN, is postulated to be a function of the effective strain energy density factor range, ΔSeff. Subsequently, this concept is applied to predict crack growth due to fatigue loads.
Sponsorship	Pressure Vessels and Piping Division
Starting Page	211
Ending Page	220
Page Count	10
File Format	PDF
ISBN	0791819493
DOI	10.1115/PVP2002-1211
Volume Number	New and Emerging Computational Methods: Applications to Fracture, Damage, and Reliability
Conference Proceedings	ASME 2002 Pressure Vessels and Piping Conference
Language	English
Publisher Date	2002-08-05
Publisher Place	Vancouver, BC, Canada
Access Restriction	Subscribed
Subject Keyword	Strain energy density Fatigue Stress intensity factor Growth rate Mixed mode Density Stress Crack propagation
Content Type	Text
Resource Type	Article

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