Mechanics Analysis of Composite Bolted Joints on the Process of Interference-fitting

Abstract

This paper derived a closed-form solution for the stress distribution of composite plates with interference fit. A distinctive feature of the present analysis was that the relationship between bolt and hole was interference fit, in contrast to the commonly-used assumption of clearance fit and neat fit. Under the condition of plane stress, the stress distribution function of the composite hole was obtained by establishing the interference fit connection model between the linear elastic composite laminated plate and the blind bolted fastener. By comparing with the previous numerical analysis of the finite element model, the theoretical prediction solved by analytical method agreed with the results of FEM.