차원해석법에 의한 고온피로 파괴 모델의 기초적 연구

A Basic Study on Fatigue Fracture Model at Elevated Temperatures by the Dimensional Analysis Method

  • 서창민 (경북대학교, 기계공학과) ;
  • 김영호 (마산대학교 생산기계공학과) ;
  • 권오헌 (경북대학교 공대)
  • 발행 : 1992.06.01

초록

The main purpose of this study is to derive a law of fatigue crack growth rate in the region of elastic or elasto-plastic fracture mechanics at elevated temperatures through the application of dimensional analysis. An equation of elasto-plastic fatigue crack growth rate at elevated temperatures appeared a new Arrhenius type equation containing J-integral range and absolute temperature. The elastic or elasto-plastic crack growth rate equation shows a fairly good agreement with the experimental results for Cr-Mo-V rotor steel and Hastelloy-X alloy in the comparatively wide temperature ranges.

키워드

참고문헌

  1. International Journal of Fracture v.23 On the Use of Dimensional Analysis in Meterial Failure Wagner,H.D.
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  6. Proceedings of Spring Conference on The Korea Committee for Ocean Resources & Engineering Application of Dimensional Analysis on Fatigue Fracture at Elevated Temperature Suh,Chang-Min;Kim,Young-Ho
  7. APCS-91, Proceedings of 4th Conference of ASIAN-PACIFIC Congress on Strength Evaluation-91 A Fracture Mechanics Study on Fatigue Crack Growth Behavior at Elevated Temperature Suh,Chang-Min;Kim,Young-Ho.;Park,Hyun-Koo
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  10. Trans. ASME, J. of Engineering Materials and Technology v.111 Fracture Mechanics Applied to Elevated Temperature Crack Growth Jordan,E.H.(et al.)
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