An analytical model for the prediction of load distribution in highly torqued multi-bolt composite joints

作者：McCarthy C T^*; Gray P J

来源：Composite Structures, 2011, 93(2): 287-298.

DOI：10.1016/j.compstruct.2010.09.017

• Composites
• Bolted joints
• Analytical model
• Clearance
• Friction

This paper presents the development of an enhanced analytical approach for modelling the load distribution in multi-bolt composite joints The model is a closed-form extension of a spring-based method where bolts and laminates are represented by a series of springs and masses The enhancement accounts for static friction effects between the laminates, a primary mechanism of load transfer in highly torqued bolted Joints The method is validated against detailed three-dimensional finite element models and where possible experimental results The effect of varying bolt-torque and bolt-hole clearance on the load distribution in a three-bolt, single-lap joint is investigated and the method proves to be robust accurate and highly efficient Finally

• 出版日期2011-1