Robust Estimation of Inelastic Fracture Energy Release Rate (J ): A Design Approach

[+] Author and Article Information
R. Seshadri, S. Wu

Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John’s, Newfoundland, A1B 3X5 Canada

J. Pressure Vessel Technol 123(2), 214-219 (Sep 18, 2000) (6 pages) doi:10.1115/1.1357161 History: Received October 05, 1999; Revised September 18, 2000
Copyright © 2001 by ASME
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PD6493, 1991, “Guidance on Some Methods For Derivation of Acceptance Levels For Defects in Fusion Welded Joints,” BSI, London, UK.
Turner,  C. E., 1984, “Further Developments of a J-Based Design Curve and Its Relationship to Other Procedures,” Elastic-Plastic Fracture, ASTM Spec. Tech. Publ., 803, pp. II-80–II-102.
Nuclear Electric plc, 1995, “Assessment of the Integrity of Structures Containing Defects,” Nuclear Electric Procedure R/H/R6.
Seshadri,  R., 1991, “The Generalized Local Stress Strain (GLOSS) Analysis—Theory and Applications,” ASME J. Pressure Vessel Technol., 113, pp. 219–227.
Seshadri,  R., and Babu,  S., 2000, “Extended GLOSS Method for Determining Inelastic Effects in Mechanical Components and Structures: Isotropic Materials,” ASME J. Pressure Vessel Technol., 122, pp. 413–420.
Webster, G. A., and Ainsworth, R. A., 1994, High Temperature Component Life Assessment, Chapman and Hall.
Seshadri,  R., and Fernando,  C. P. D., 1992, “Limit Loads of Mechanical Components and Structures using the GLOSS R-Node Method,” ASME J. Pressure Vessel Technol., 114, pp. 201–208.
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Grahic Jump Location
Relaxation locus for pressure components with a crack
Grahic Jump Location
Compact tension specimen : r-nodes, reference stress, and uniaxial stress-strain model
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Je and Jp curves as a function of εn
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Normalized load versus normalized displacement
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Plot of constraint parameter versus normalized deflection
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Constraint parameter versus normalized load
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Design curves—J̄ versus ε̄n
Grahic Jump Location
Single-edge crack specimen (J̄ versus ε̄n)
Grahic Jump Location
Compact tension specimen (J̄ versus ε̄n)
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Single edge-notched bend specimen (J̄ versus ε̄n)



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