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

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

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.

本文言語English
ホスト出版物のタイトルCodes and Standards
出版社American Society of Mechanical Engineers (ASME)
ISBN(電子版)9780791845981
DOI
出版ステータスPublished - 2014 1 1
外部発表はい
イベントASME 2014 Pressure Vessels and Piping Conference, PVP 2014 - Anaheim, United States
継続期間: 2014 7 202014 7 24

出版物シリーズ

名前American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
1
ISSN(印刷版)0277-027X

Conference

ConferenceASME 2014 Pressure Vessels and Piping Conference, PVP 2014
CountryUnited States
CityAnaheim
Period14/7/2014/7/24

ASJC Scopus subject areas

  • Mechanical Engineering

フィンガープリント 「A method to quantify thermal aging effect on fracture toughness of cast stainless steels using small punch test」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル