On the Bearing Failure of Laminated Composite Pin‐Loaded Joints: Exploitation of Semi‐Analytical Solutions for the Determination of the Stress State

Abstract

The present work deals with the development and verification of a set of analytical solutions for the bearing failure of single lap composite joints, which are applied on a composite joint tested experimentally. The stress field originating from the solution is calculated and progressive failure criteria are applied, verifying their applicability as a fast way of calculating bearing failure of a joint. Additionally, the extracted stress field from the results is introduced as a load to the finite element model of the joint under evaluation, and the equivalency of this method is compared and proven against typical implicit non-linear contact analysis. The major advantage of the proposed methodology is that the highly non-linear contact problem is circumvented using the stress distribution at the hole boundary as an actual load and thus transforming the analysis to a linear one, providing considerable agreement to the exact high-cost numerical solution.

An analytical model for embedment stiffness of a dowel in timber under cyclic load

“…Despite the availability of nonlinear finite element modelling software capable of dealing with this geometry and loading, there continues to be research interest in the stress function approach, such as the development of a new form of solution by Aluko and Whitworth (2008). One reason for the enduring interest in this approach is the speed of calculation, and Derdas and Kostopoulos (2011) use the stress function to define the loading along the hole edge, and apply that loading to a finite element model, thus reducing the finite element model to a linear elastic one and avoiding the computational cost of carrying out a contact-element analysis.…”