10 فروردین 1403
بابك عبازاده

بابک عبازاده

مرتبه علمی: دانشیار
نشانی: بناب-دانشگاه بناب
تحصیلات: دکترای تخصصی / مهندسی مکانیک- طراحی کاربردی
تلفن: 04137745000-1620
دانشکده: دانشکده فنی و مهندسی
گروه: گروه مهندسی مکانیک

مشخصات پژوهش

عنوان
Effect of interference fitting and/or bolt clamping on the fatigue behavior of Al alloy 2024-T3 double shear lap joints in different cyclic load ranges
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
Fatigue, Interference fit, Bolt clamping, Double shear lap joint, Finite element
پژوهشگران بابک عبازاده (نفر اول)، تاج بخش نوید چاخرلو (نفر دوم)، René C. Alderliesten (نفر سوم)

چکیده

Two applied fatigue life improvement techniques of joints, interference fitting and bolt clamping, have been investigated comparing available experimental and finite element simulation results for Al-alloy 2024-T3 double shear lap joint specimens. Fatigue test results of interference fitted, bolt clamped and combined interference fitted-bolt clamped specimens were used to determine the effect of the different techniques on the fatigue life improvement in comparison with clearance fitted specimens. Also the fracture surfaces of the specimens were analyzed post-mortem to determine the fatigue crack initiation (and growth) locations. These locations were correlated to the applied cyclic load range. Results of the finite element analysis were used to help explain the trends observed in the experimentally obtained S-N data. Results showed that the fatigue life improvement not only changes for different techniques and magnitude of interference fit or tightening torque, but also depends on the applied cyclic load range.