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S. Bhat and V. G. Ukadgaonker, “Dugdale Cohesive Zone Modeling to Evaluate J Integral at the Interface of Strength Mismatched Steels: A Simplified Numerical Approach,” Finite Elements in Analysis and Design, Vol. 46, No. 7, 2010, pp. 601-610. doi:10.1016/j.finel.2010.02.007

has been cited by the following article:

• TITLE: Finite Element Modeling of Crack Tip Blunting for Estimation of Energy Release Rate Component of Mode I Crack near a Strength Mismatched Interface

  AUTHORS: Sunil Bhat, Vijay G. Ukadgaonker

  KEYWORDS: Crack Tip Blunting; Interface; J Integral; Strength Mismatch; Mode I Crack

  JOURNAL NAME: Applied Mathematics, Vol.4 No.5A, May 21, 2013

  ABSTRACT: The paper presents finite element modeling of crack tip blunting for numerical estimation of fracture parameter of a Mode I crack, in weak alloy steel, which is near and normal to the interface of elastically identical but stronger maraging steel. The bimetallic body is subjected to monotonic load in K dominated regime. Crack tip yield zone across the interface, treated as Dugdale’s cohesive zone, is isolated from the bimetallic domain and is modeled alone under the action of respective cohesive stress over yield zones for obtaining the contribution of mismatch between yield strength of the steels in crack energy release rate component, Jinterface. Effect of far field load on Jinterface is found separately from a theoretical model. Numerical and theoretical results of Jinterface are in good agreement.