A Method of Damage Mechanics for the Prediction of Fatigue Lives

摘要

According to methodology of damage mechanics, the conservative integral, stress and strain concentration factors and closed form solution of fatigue crackinitiation lives of notched plates are established. For aluminum alloy, the agreement between the results of theoritical predictions and those by experiments is satifactory. This method is very time - saving and a lot of experimental work can be substituted. So this method is in engineering practice.