LOAD DISTRIBUTIONS IN BOLTED SINGLE LAP JOINTS UNDER NON-CENTRAL TENSILE SHEAR LOADING

摘要

This study uses beam theory-based model to investigate a numerically calibrated bolt load distributions in a preloaded two-bolt single lap joint under non-central tensile shear loading. Linear spring-based modeling is used for the two preloaded bolts and substrates. In practice, due to geometric tolerance may not necessarily pass through the joint centerline causing an additional moment loading. Thus, the sharing load would not be equally distributed between all the bolt in the joint. The effect of various joint parameter, bolt preload and off-center location of the tensile shear loading is investigated and discussed. Proposed model would be useful in enhancing the reliability and safety of bolted joints.