Uncertainties and dynamic problems of bolted joints and other fasteners

https://www.fml.t.u-tokyo.ac.jp/~izumi/Bolt/WG/fem_bolted_joints_modelling_Korea.pdf

Finite element analysis and modeling of structure with bolted joints

Finite element analysis of fastening and joining: A bibliography (1990–2002)

A study of the helical effect on the thread connection by three dimensional finite element analysis

An improved stiffness model is proposed for bolted joints made of similar and dissimilar plates. A novel approach is used to obtain an expression for the effective area used for determining the joint stiffness. More accurate estimate of the joint stiffness provides a more reliable prediction of the joint behavior both during its initial assembly, as well as under subsequently applied tensile loads in service. The effect of the grip length-to-diameter ratio, joint sizes, underhead contact radii ratio, hole clearance, and plate material/thickness ratio are investigated. Experimental data are used for determining the envelope angle a in the proposed analytical model. Finite element modeling is used for evaluating the accuracy of the proposed stiffness model.

An Improved Stiffness Model for Bolted Joints

The member stiffness in a bolted connection has a direct influence upon safe design with regard to both static and fatigue loading, as well as in the prevention of separation in the connection This work provides a simple technique for computing the member stiffness in many types of bolted connections Finite element analyses are performed for joints having a range of materials and geometries, and the results are generalized by nondimensionalization An exponential expression for the stiffness is determined, and the results are compared with those of some of the techniques currently used

/pdf/computation-of-member-stiffness-in-bolted-connections-1m461jsae3.pdf

M. Choudhury

Papers

Computation of Member Stiffness in Bolted Connections