Abstract
Loosening-fatigue tests of bolted joints subjected to transverse vibrations have been performed to understand the loosening-fatigue characteristics in the long life region. The current study is focused on the influences of the grip length and the engaged length of a bolted joint on the loosening-fatigue characteristics. Results show that the threshold levels of the amplitude of transverse vibration force that determine whether or not a bolt will fail as a results fatigue depend on the grip length and the engaged length.
