Finite element analysis and modeling of structure with bolted joints

Abstract

In this work, in order to investigate a modeling technique of the structure with bolted joints, four kinds of finite element models are introduced; a solid bolt model, a coupled bolt model, a spider bolt model, and a no-bolt model. All the proposed models take into account pretension effect and contact behavior between flanges to be joined. Among these models, the solid bolt model, which is modeled by using 3D solid elements and surface-to-surface contact elements between head/ nut and the flange interfaces, provides the best accurate responses compared with the experimental results. In addition, the coupled bolt model, which couples degree of freedom between the head/nut and the flange, shows the best effectiveness and usefulness in view of computational time and memory usage. Finally, the bolt model proposed in this study is adopted for a structural analysis of a large marine diesel engine consisting of several parts which are connected by long stay bolts.

Bolt loosening analysis and diagnosis by non-contact laser excitation vibration tests

“…Some reports have found that nonlinear features like frictional contact elements cannot be counted in a modal analysis [3,16], and this has caused other research to employ linear contact for the modal analysis. In this study, the effects of the frictional contact are taken into account in dynamic analysis as pre-stressed modal analysis, in which the static structural analysis with contact element results in the stress and elastic strain which are maintained as initial condition of next analysis, modal analysis.…”

“…Kim proposed four kinds of finite element models to model structures with bolted joints [3]. Ahmadian developed a nonlinear generic element formulation for modeling bolted lap joints [4].…”

Numerical Simulation and Experimental Validation of the Vibration Modes for a Processing Reciprocating Compressor

“…Proper modelling of bolted joints is critical to estimating the dynamic characteristics of reciprocating compressors. The characteristics of bolted joints have drawn much attention in recent years [5][6][7][8][9][10][11][12]. Pratt and Pardoen [5] proposed nonlinear finite element models to predict the load-elongation behaviour of conical-head bolted lap joints and verified simulation results by the comparison to test data.…”

Effect of Bolt Number on Joint Stiffness of Disc and Drum Connected by Bolted Joints

“…Ref. [6] compared the calculation accuracy and efficiency of four kinds of bolt finite element models. Ref.…”