Creep failure simulations for 316H at 550°C

Nak Hyun Kim, Yun Jae Kim, Catrin M. Davies, Kamran M. Nikbin, David W. Dean

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

In this work a method to simulate failure due to creep is proposed using finite element damage analysis. The creep damage model is based on the creep ductility exhaustion concept. Incremental damage is defined by the ratio of incremental inelastic (plastic & creep) strain and multi-axial ductility. A simple linear damage summation rule is applied. When accumulated damage becomes unity, element stresses are reduced to almost zero to simulate progressive crack growth. The model is validated through comparison with experimental data on various sized compact tension, C(T), specimens of 316H stainless steel at 550 °C. The influence of the inelastic strain rate on the uniaxial ductility is considered. Good agreement is found between the simulated results and the experimental data.

本文言語English
ホスト出版物のタイトルASME 2012 Pressure Vessels and Piping Conference, PVP 2012
ページ325-330
ページ数6
DOI
出版ステータスPublished - 2012 12 1
外部発表はい
イベントASME 2012 Pressure Vessels and Piping Conference, PVP 2012 - Toronto, ON, Canada
継続期間: 2012 7 152012 7 19

出版物シリーズ

名前American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
3
ISSN(印刷版)0277-027X

Conference

ConferenceASME 2012 Pressure Vessels and Piping Conference, PVP 2012
国/地域Canada
CityToronto, ON
Period12/7/1512/7/19

ASJC Scopus subject areas

  • 機械工学

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