Journal of Inorganic Materials

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Cyclic Fatigue Strength Prediction of Soda-lime Glass

LU Baotong   

  1. College of Materials Science and Engineering Northwestern Polytechnical UniversityXi an 710072 China
  • Received:1996-09-09 Revised:1996-11-05 Published:1997-10-20 Online:1997-10-20

Abstract: A general procedure to predict the both unnotched and notched fatigue strength of soda-lime glass under different loading modes is given on
the basis of the cyclic fatigue behavior of the material. Because there no effective crack-shielding mechanism exists in soda-lime glass, the cyclic loading produces no
additional damage in the material. The fatigue notch factor Kf of notched specimens is approximately equal to the theoretical stress concentration factor Kt of the specimens. A
general strength-probability-time(SPT) diagram can be obtained according to the concept of equivalent stress σeq, in which the both effects of notch and loading-modes are
taken into account.

Key words: glass, cyclic fatigue, notch, crack, strength, lifetime