An estimation of C(t) of transient creep under combined mechanical and thermal stresess

Chang Young Oh, Tae Kwang Song, Yun Jae Kim

研究成果: Conference contribution

抄録

In this paper, a prediction of C(t), a crack tip parameter for the transient creep condition, for the circumferential cracked pipe under combined mechanical and thermal stresses are presented. The estimation formulae for C(t)-integral of the cracked component operating under mechanical load alone have been provided for decades [1-6]. However, high temperature structures usually work under combined mechanical and thermal load. And the interactions between mechanical and thermal loads make the relaxation rate different from those produced under mechanical load alone. In this study, 3-dimensional finite element analyses are conducted to calculate the C(t)-integral under combined mechanical and thermal load. As a result, redistribution time for the crack under combined mechanical and thermal load is re-defined to quantify the C(t)-integral. The estimation of C(t)-integral using this proposed redistribution time agrees well with FE results.

本文言語English
ホスト出版物のタイトルASME 2010 Pressure Vessels and Piping Division/K-PVP Conference, PVP2010
ページ403-409
ページ数7
DOI
出版ステータスPublished - 2010 12月 1
外部発表はい
イベントASME 2010 Pressure Vessels and Piping Division/K-PVP Conference, PVP2010 - Bellevue, WA, United States
継続期間: 2010 7月 182010 7月 22

出版物シリーズ

名前American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
5
ISSN(印刷版)0277-027X

Other

OtherASME 2010 Pressure Vessels and Piping Division/K-PVP Conference, PVP2010
国/地域United States
CityBellevue, WA
Period10/7/1810/7/22

ASJC Scopus subject areas

  • 機械工学

フィンガープリント

「An estimation of C(t) of transient creep under combined mechanical and thermal stresess」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