Sn. Perov et al., APPLICATION AND VERIFICATION OF FATIGUE LIFE CALCULATION METHODS FOR AZ91E-T6 CAST MAGNESIUM ALLOY UNDER VARIABLE AMPLITUDE LOADING, Journal of engineering materials and technology, 115(4), 1993, pp. 385-390
The goal of this research was to determine the applicability of common
ly used fatigue life calculation methods for variable amplitude loadin
g with sand cast AZ91E-T6 magnesium alloy using notched ''keyhole'' sp
ecimens. Commercially available fatigue life calculation software pack
ages were used to calculate the fatigue crack ''initiation'' life (1 m
m crack) and fatigue crack growth life corresponding to the experiment
s. The resulting correlation between experimental and calculated fatig
ue lives ranged from good to poor, and from conservative to nonconserv
ative, depending on the analysis method used. It was shown that these
fatigue life calculation methods can be used with this sand cast magne
sium alloy but with certain apprehension.