Three-Dimensional Spline-Based Stress Analysis of Bolted Composite Joints with Clamping

摘要

Results of three-dimensional stress analyses in multilayered composite plates containing an elastic fastener with clamp-up are presented. Cubic B-splines were used to approximate the displacement field in the plate, fastener, and fastener head. The penalty function approach along with the contact surface characteristic function was used to formulate the contact problem between the fastener and the plate. A mesh density study was performed to assess the effect of various mesh parameters and their interaction on accuracy of stress calculation in the plate and the fastener.