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Reference stress based J and COD estimation of circumferential through-wall cracked elbows under in-plane bending
- Issue Date
- 7월-2015
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Circumferential through-wall crack; Leak-before-break; Elbow; Experimental validation; J-integral; Crack opening displacement; Optimized reference load; Reference stress method
- Citation
- ENGINEERING FRACTURE MECHANICS, v.142, pp.303 - 317
- Indexed
- SCIE
SCOPUS
- Journal Title
- ENGINEERING FRACTURE MECHANICS
- Volume
- 142
- Start Page
- 303
- End Page
- 317
- ISSN
- 0013-7944
- Abstract
- This paper proposes J-integral and crack opening displacement (COD) estimation equations based on the reference stress method for circumferential through-wall cracked elbows under in-plane bending. For best estimates of J and COD, an optimized reference load, used to define the reference stress, is given. The proposed equations are compared with detailed finite element results. They are further validated against eight published full-scale pipe test data. Comparison of crack initiation and maximum loads shows good agreement. (C) 2015 Elsevier Ltd. All rights reserved.
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Collections - College of Engineering > Department of Mechanical Engineering > 1. Journal Articles
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