... e-mail:  peterjohn.budden@btinternet.com 14 09 2020 13 12 2021 18 01 2022 pipe elbow J-integral reference stress limit load local limit load Elbows are widely used in nuclear power plant pipelines, both in nuclear and conventional islands. Assessment of elbows...

... driving force for pipelines with a crack in girth weld is highly required. This paper gives the newly developed J-integral and crack-tip opening displacement (CTOD) estimation in a strain-based scheme for pipelines with an internal surface crack in girth weld under axial displacement and internal pressure...

... displacement and J -integral of dissimilar metal welded pipes, which consist of two-layered materials (TLMs), due to the difficulty of complicate analysis encompassing both through-wall crack and internal surface crack in radial and circumferential directions. In this study, a series of finite element analyses...

...Youn-Young Jang; Ju-Yeon Kang; Nam-Su Huh; Ik-Joong Kim; Young-Pyo Kim Engineering solutions for crack-tip opening displacement (CTOD) and J-integral estimations for pipelines with a surface crack are proposed based on parametric finite element (FE) analyses for various geometries, material...

... the dependence of fracture toughness with temperature for the tested material. Fracture toughness testing conducted on single edge bend SE(B) specimens in three-point loading extracted from an A285 Grade C pressure vessel steel plate provides the cleavage fracture resistance data in terms of the J-integral...

... of elasticity used to relate stress intensity factor K and the elastic part of the J -integral may be different. The scope of the present paper is limited to evaluation of the crack size; investigation of the appropriate modulus for use in the J–K relation requires further study. where β...

...Xian-Kui Zhu The J-integral resistance curve is the most important material properties in fracture mechanics that is often used for structural integrity assessment. ASTM E1820 is a commonly accepted fracture toughness test standard for measuring the critical value of J-integral at the onset...

...Eduard Marenić; Ivica Skozrit; Zdenko Tonković In the present paper, calculations of the stress intensity factor (SIF) in the linear-elastic range and the J -integral in the elastoplastic domain of cracked structural components are performed by using the shell-to-solid submodeling technique...

...-cracked pipe, indicate that the decomposition method developed provides accurate, convergent, and computationally efficient estimates of the probabilistic characteristics of the J -integral. Madsen , H. O. , Krenk , S. , and Lind , N. C. , 1986 , Methods of Structural Safety...

... of residual stress fields, introduced by a method of in-plane compression, was investigated through the use of a modified J -integral, designed to retain path independence in the presence of initial stress and strain fields and nonproportional loading. Application of modified J values to predict fracture...

... procedure specification. 10 03 2006 28 03 2007 15 08 2008 arc welding fracture inclusions microhardness pipes porosity tensile testing welds narrow gap welding J -integral LBB inclusion pore A design concept of leak-before-break (LBB) has been successfully...

... dimension ratio Haung, D. D., 1991, “The Application of the Multispecimen J-Integral Technique to Toughened Polymers,” Elastic-Plastic Fracture Test Methods: The Users Experience (2nd volume), ASTM STP114, J. A. Toyce, ed., American Society for Testing and Materials, Philadelphia, pp. 290...

.... Associate Editor: S. Rahman. 06 February 2003 18 July 2003 18 08 2004 fracture mechanics elastoplasticity yield strength finite element analysis bending stainless steel cracks Crack Opening Displacement Leak-before-Break J-integral Ramberg-Osgood...