Acta Metall Sin  1995, Vol. 31 Issue (10): 479-484    DOI:

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GROWTH BEHAVIOUR OF SHORT CRACK AND FATIGUE DAMAGE UNDER SPECTRUM LOADING

ZHANG Guangping; ZANG Qishan; WANG Zhongguang(State Key Laboratory for Fracture and Fatigue of Materials;Institute of Metal Research; Chinese Academy of Sciences Shenyang 110015)(Manuscript received 1994-08-06; in revised form 1995-06-09)

ZHANG Guangping; ZANG Qishan; WANG Zhongguang(State Key Laboratory for Fracture and Fatigue of Materials;Institute of Metal Research; Chinese Academy of Sciences Shenyang 110015)(Manuscript received 1994-08-06; in revised form 1995-06-09). GROWTH BEHAVIOUR OF SHORT CRACK AND FATIGUE DAMAGE UNDER SPECTRUM LOADING. Acta Metall Sin, 1995, 31(10): 479-484.

Abstract References Related Articles Recommended Metrics Download:  PDF(426KB)  Export:  BibTeX | EndNote (RIS)       Abstract  Study has been carried out of the growth behaviour of short crack under spectrum loading. Meanwhile,fatigue damage and life prediction under spectrum loading have also been made.The results show that both single─edge short cracks and short cracks from notchs under spectrum loading can propagate at higher rate below the long crack growth threshold,and indicate the same growth tendency as short cracks under constant amplitude test. However, short crack growth rate under spectrum loading is slightly lower than that of constant amplitude loading. Furthermore, growth rate for long crack under spectrum loading is even lower than that of constant amplitude loading. According to the statistical approach and the constant amplitude fatigue tests, the prediction for fatigue damage under ice spectrum loading has been made, and a reasonable method for fatigue damage under ice spectrum loading has been put forward.Correspondent: ZHANG Guangping,Institute of Metal Research,Chinese Academy of Sciences, Shenyang 110015 Key words:  spectrum loading      short crack      crack growth rate      fatigue damage      Received:  18 October 1995      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1995/V31/I10/479 1AllenRJ,SinclariJC,FatigueEngMaterStruct,1982;5:3432MillerKJ．FatigueEngMaterStruct,1979;1:1293EIHaddadMH,SmithKN,TopperTH．TransASME,JEngMaterTechnol,1979;101:424PetitJ,DavidsonDL,SureshS,RabbeP．FatigueCrackGrowthUnderVariableAmplitudeLoading,LondonandNewYork:ElsevierAppliedScience,19885AlawiH．TransASME,JEngMaterTechnol,1989;111:3386SureshS著,王中光等译.材料的疲劳.北京:国防工业出版社,19937SunderR．In:MitchellMR,LandgrafRW,eds．,AdvancesinFatigueLifetimePredictiveTechniques．19918ParisPC．Ph．DThesis．TheGrowthofCracksDuetoVariationsinLoad,Bethlehem:LenlghUniversity．1960 [1] QI Zhao, WANG Bin, ZHANG Peng, LIU Rui, ZHANG Zhenjun, ZHANG Zhefeng. 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