A Probabilistic Study to the Effect of Specimen Thickness on Fatigue Crack Growth Resistance

피로균열전파저항에 미치는 시험편 두께의 영향에 관한 확률론적 연구

  • 김선진 (부산수산대학교, 공과대학기계공학과) ;
  • 오세규 (부산수산대학교, 공과대학기계공학과)
  • Published : 1994.12.01

Abstract

The purpose of the present study is to investigate the effect of specimen thickness on statistical properties of crack growth resistance. In this study, the resistance S$\delta$$_h$(x) to fatigue crack growth was treated as a spatial stochastic process. which varies randomly on the crack surface. The theoretical autocorrelation functions of the resistance to fatigue crack growth considering specimen thickness are discussed for several correlation lengths. The main results obtained are : (1) The theoretical autocorrelation functions of S$\delta$$_h$(x) are almost independent of specimen of specimen thickness except for the origin. (2) The variance increases with decreasing specimen thickness.

Keywords

References

  1. Eng. Fracture Mechanics v.14 A Critical Analysis of Some Probabilistic Models of Fatigue Crack Growth Kozin,F.;Bogdanoff,J.L.
  2. Eng. Fracture Mechanics v.18 no.2 On Statistical Moments of Fatigue Crack Propagation Lin,Y.K.;Yang,J.N.
  3. AIAA Journal v.21 no.1 A STochastic Theory of Fatigue Crack Growth Propagation Lin,Y.K.;Yang,J.N.
  4. Eng. Fracture Mechanics v.24 no.5 Time Series Analysis of Fatigue Crack Growth Rate Data Oritz.K.;Kiremidjian,A.S.
  5. 日本造船學會論文集 v.141 疲勞壽命の確率分布推定について(べイジアンアプロ-チ) 板垣浩;石塚鐵夫;山本聰
  6. 日本機械學會論文集(A編) v.45 no.429 時間打切り疲勞壽命試驗デ-タのベイズ解析 藤井進;中川陸夫;僑本和彦;河村英敏
  7. Eng. Fracture Mechanics v.25 no.2 Statistical Analysis of Virkler Data on Fatigue Crack Growth Ditelvsen,O.;Olesen,R.
  8. 材料 v.3 no.367 マルコフ連鎭を用いた疲勞龜裂進展壽命の信賴性解析 島田佳弘;中川陸夫;德納久陸
  9. 日本造船學會論文集 v.165 疲勞龜裂傳播のシミュレ-ションによる信賴性評價 板垣浩;石塚鐵夫;黃培彦
  10. 日本機械學會論文集(A編) v.525 疲로2龜裂傳播壽命の確率分布推定に關する實驗的硏究 板垣浩;石塚鐵夫;黃培彦
  11. 日本造船學會論文集 v.170 材質の空間的變動の材料試驗結果に及ぼす影響について(その1) 板垣浩;石塚鐵夫;金善振
  12. 日本機械學會論文集(A編) v.58 no.548 疲勞龜裂進展低抗の不規則性に及ばす板厚の影響 佐佐木哲也;酒井信介;岡村弘之
  13. 대한 기계학회논문집 v.14 no.6 피로크랙 진전수명의 확률특성에 관한 연구(2) 윤한용
  14. Trans. ASME J. Basic Eng. v.85 A Critical Analysis of Crack Growth Propagation Paris,P.C.;Erdogan,F.
  15. 材料 v.34 no.378 疲勞龜裂傳播法則da/dN=C(△K)ⁿにおけるパラメ-タの確率變數化の方法 市川昌弘;中村武夫
  16. Probabilistic Mrthods in the Theory of Structures Isaac Elishakoff
  17. Digital Simulation of Random Process in Engineering Mechanics with the Aid of FFT Techanique, Stochastic Problems in Mechanics Shinozuka,M.
  18. Digital Generation of Non-Gaussian Stochastic Fields, Technical Report Yamazaki,F.;Shinozuka,M.