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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1995, Vol. 16 ›› Issue (2): 75-77.

• 论文 • Previous Articles     Next Articles

AN OPTIMUM METHOD FOR ESTIMATING PARAMETERS OF CRACK GROWTH MODEL UNDER LOAD SPECTRUM IN AIRCRAFT STURCTURE DESIGN

Yan Hongjia, Liu Wenting   

  1. Fifth Department of Beijing Uvinersity of Aeronautics and Astronautics,Beijing,100083
  • Received:1994-04-28 Revised:1994-07-20 Online:1995-04-25 Published:1995-04-25

Abstract: A parameter-estimation method of crack growth model da/da=Qa b under the short-cycle loading spectrum is presented,which can be used in aircraft structure design.The estimation can be conducted by using optimum design procedure,based on material parameter,load spectrum and structural geometry.

Key words: crack growth, load spect rum, optimizat ion

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