Delta-K correlation of fatigue crack growth rates under general monotonic yielding

Seetharam, SA and Dash, PK (1991) Delta-K correlation of fatigue crack growth rates under general monotonic yielding. International Journal of Fracture, 52 . R3-R8. ISSN 0376-9429

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Abstract

Linear Elastic Fracture Mechanics, LEFM, principles are successfully used to characterize the behavior of flawed structures and components under monotonic loading. Crack length increment, da, correlates with maximum stress intensity factor, K, when the monotonic plastic zone size is small. Cracks can grow under cyclic loading even at stress levels lower than that required for crack extension under static loading. Paris et al. established the correlation between crack growth rate, da/dN, and stress intensity factor range, delta-K, of the load cycle. Aplication of LEFM principles to crack extension under monotonic cyclic loading can be seen.

Item Type:	Journal Article
Additional Information:	Copyright for this article belongs to Springer Verlag
Uncontrolled Keywords:	Crack propagation;Fatigue tests;Stress intensity factors;Yield point;Cyclic loads;Load tests;Static loads
Subjects:	ENGINEERING > Structural Mechanics
Division/Department:	Structures Division, Structures Division
Depositing User:	Mr. Ravikumar R
Date Deposited:	11 Oct 2006
Last Modified:	24 May 2010 09:51
URI:	http://nal-ir.nal.res.in/id/eprint/2972

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