A method to quantify thermal aging effect on fracture toughness of cast stainless steels using small punch test

Jun Young Jeon; Dong Il Ryu; Yun Jae Kim; Mi Yeon Lee; Jin Weon Kim

doi:10.1115/PVP201428233

A method to quantify thermal aging effect on fracture toughness of cast stainless steels using small punch test

Jun Young Jeon, Dong Il Ryu, Yun Jae Kim, Mi Yeon Lee, Jin Weon Kim

School of Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

In this study, a method to predict fracture toughness of aged cast austenitic stainless steels (CASSs) using small punch (SP) test and finite element (FE) analysis is proposed. Grade CF8M is considered and thermally aged up to 5,000 hours at 400°C. SP tests and fracture toughness test using compact tension (C(T)) specimen are conducted with virgin (unaged) and aged CF8M. FE analyses performed in this study use ductile fracture simulation technique with 'the multi-axial fracture strain model'. The multi-axial fracture strain model for each aged CF8M are determined from SP test data and FE analyses. Fracture toughness of aged CF8M are predicted by conducting fracture toughness test simulations using FE damage analyses. Predicted fracture toughness results are compared with C(T) data to validate the method suggested in this study. The predicted initiation toughness values are predicted well and fracture toughness values are slightly conservative compared to test data.

Original language	English
Title of host publication	Codes and Standards
Publisher	American Society of Mechanical Engineers (ASME)
ISBN (Electronic)	9780791845981
DOIs	https://doi.org/10.1115/PVP201428233
Publication status	Published - 2014
Event	ASME 2014 Pressure Vessels and Piping Conference, PVP 2014 - Anaheim, United States Duration: 2014 Jul 20 → 2014 Jul 24

Publication series

Name	American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume	1
ISSN (Print)	0277-027X

Other

Other	ASME 2014 Pressure Vessels and Piping Conference, PVP 2014
Country/Territory	United States
City	Anaheim
Period	14/7/20 → 14/7/24

Bibliographical note

Publisher Copyright:
Copyright © 2014 by ASME.

ASJC Scopus subject areas

Mechanical Engineering

Access to Document

10.1115/PVP201428233

Cite this

Jeon, J. Y., Ryu, D. I., Kim, Y. J., Lee, M. Y., & Kim, J. W. (2014). A method to quantify thermal aging effect on fracture toughness of cast stainless steels using small punch test. In Codes and Standards (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 1). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/PVP201428233

A method to quantify thermal aging effect on fracture toughness of cast stainless steels using small punch test. / Jeon, Jun Young; Ryu, Dong Il; Kim, Yun Jae et al.
Codes and Standards. American Society of Mechanical Engineers (ASME), 2014. (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Jeon, JY, Ryu, DI, Kim, YJ, Lee, MY & Kim, JW 2014, A method to quantify thermal aging effect on fracture toughness of cast stainless steels using small punch test. in Codes and Standards. American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, vol. 1, American Society of Mechanical Engineers (ASME), ASME 2014 Pressure Vessels and Piping Conference, PVP 2014, Anaheim, United States, 14/7/20. https://doi.org/10.1115/PVP201428233

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abstract = "In this study, a method to predict fracture toughness of aged cast austenitic stainless steels (CASSs) using small punch (SP) test and finite element (FE) analysis is proposed. Grade CF8M is considered and thermally aged up to 5,000 hours at 400°C. SP tests and fracture toughness test using compact tension (C(T)) specimen are conducted with virgin (unaged) and aged CF8M. FE analyses performed in this study use ductile fracture simulation technique with 'the multi-axial fracture strain model'. The multi-axial fracture strain model for each aged CF8M are determined from SP test data and FE analyses. Fracture toughness of aged CF8M are predicted by conducting fracture toughness test simulations using FE damage analyses. Predicted fracture toughness results are compared with C(T) data to validate the method suggested in this study. The predicted initiation toughness values are predicted well and fracture toughness values are slightly conservative compared to test data.",

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A method to quantify thermal aging effect on fracture toughness of cast stainless steels using small punch test

Abstract

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