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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1995, Vol. 16 ›› Issue (2): 91-94.

• 论文 • Previous Articles     Next Articles

A SIMPLIFIED IFQ MODEL FOR DURABILITY ANALYSIS OF STRUCTURES

Chen Chuanyao, Gao Daxing   

  1. Dept. Mechanic, HuaZhong Universit of Science and Technology, Wuhan, 430074
  • Received:1994-03-02 Revised:1994-07-20 Online:1995-04-25 Published:1995-04-25

Abstract: A simplified model for describing the initial fatigue quality (IFQ) of structural details is proposed.A universal TTCI distribution,which represents the IFQ,can be obtained by using only one set of durability testing results under a given stress level and the m value of the S-N curve of details.The proposed model is then verified by fastener hole durabilit testing data.Based on the simplified IFQ model,the S-t equation defined by the crack exceedance is deduced finally,for ease in durability analysis of structures.

Key words: durability, fatique, model

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