Cyclic Fatigue Strength Prediction of Soda-lime Glass

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