This work focuses on the evaluation procedure to determine the elastic-plastic fracture toughness J-integral based upon the η-method for welded SE(T) fracture specimens. The primary objective of this investigation is to address the significance of the η-factor on accurate and robust estimates of J clamped single edge notch tension (SE(T)) specimens using load-displacement records. Very detailed non-linear finite element analyses for plane-strain models provide the evolution of load with increased load-line displacement to define the applied load as a separable function dependent upon crack geometry, strength mismatch level and specimen deformation. The analyses reveal that η-factors for clamped SE(T) fracture specimens based on load-line displacement (LLD) records and plastic area are relatively insensitive to weld strength mismatch.
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ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference
July 18–22, 2010
Bellevue, Washington, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-49255
PROCEEDINGS PAPER
Applicability of J Estimation Procedures for Overmatched SE(T) Fracture Specimens
Lenin M. Paredes,
Lenin M. Paredes
University of Sa˜o Paulo, Sa˜o Paulo, SP, Brazil
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Henrique S. S. Carvalho,
Henrique S. S. Carvalho
University of Sa˜o Paulo, Sa˜o Paulo, SP, Brazil
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Claudio Ruggieri
Claudio Ruggieri
University of Sa˜o Paulo, Sa˜o Paulo, SP, Brazil
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Lenin M. Paredes
University of Sa˜o Paulo, Sa˜o Paulo, SP, Brazil
Henrique S. S. Carvalho
University of Sa˜o Paulo, Sa˜o Paulo, SP, Brazil
Claudio Ruggieri
University of Sa˜o Paulo, Sa˜o Paulo, SP, Brazil
Paper No:
PVP2010-25121, pp. 1001-1009; 9 pages
Published Online:
January 10, 2011
Citation
Paredes, LM, Carvalho, HSS, & Ruggieri, C. "Applicability of J Estimation Procedures for Overmatched SE(T) Fracture Specimens." Proceedings of the ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASME 2010 Pressure Vessels and Piping Conference: Volume 6, Parts A and B. Bellevue, Washington, USA. July 18–22, 2010. pp. 1001-1009. ASME. https://doi.org/10.1115/PVP2010-25121
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