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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1997, Vol. 18 ›› Issue (4): 470-472.

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FRACTURE SPECTRUM TRUNCATION OF LOWER LOADS IN A CERTAIN AIRCRAFT

Li Yumin, Li Guiwen, Yang Kangmei   

  1. Box 725 of Shenyang,Shenyang,110035
  • Received:1996-06-03 Revised:1996-12-28 Online:1997-08-25 Published:1997-08-25

Abstract:

The effect of truncation of lower loads in load spectrum on crack growth lives of overall structure points is investigated. The relation between life error and crack growth ratio is derived and analysis shows that life error mainly depends on material parameters of cracked structure and the effect of cracked location could be neglected.

Key words: fracture, load spectrum, truncation, crack growth

CLC Number: