Babak Abazadeh and Hadi Rezghi Maleki
Investigating the Fatigue Crack Initiation Location in Interference Fitted andor bolt Clamped Al 2024T3 Double Shear Lap Joints
1665 - 1669
2012
6
8
International Journal of Mechanical and Mechatronics Engineering
https://publications.waset.org/pdf/4082
https://publications.waset.org/vol/68
World Academy of Science, Engineering and Technology
In this paper the fatigue crack initiation location of double shear lap joints, treated by interference fit and bolt clamping, have been investigated both experimentally and numerically. To do so, using the fracture section of available fatigue tested specimens of interference fitted and torque tightened Aluminum 2024T3 plates, the crack initiation location was determined. The stress distribution attained from the finite element analysis was used to help explain the results observed in the experimental tests. The results showed that the fatigue crack initiation location changes from top and mid plane at the hole edge to somewhere far from the hole edge (stress concentration region) in different combination of clamping force, interference fit size and applied cyclic load ranges. It is worth mentioning that the fatigue crack initiation location affects the fatigue life of the specimens too.
Open Science Index 68, 2012