Design of experiments and energy dissipation analysis for a contact mechanics 3D model of frictional bolted lap joints

Bolted lap joints allow structural assemblies to be made. The answer to requirements, both static and dynamic, depends on the joint behaviour. Bolted joints are a primary source of energy dissipation in dynamic built-up and space structures among others. This paper presents an analysis of a bolted l...

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Bibliographic Details
Published in:Advances in engineering software (1992) 2012-03, Vol.45 (1), p.42-53
Main Authors: Abad, J., Franco, J.M., Celorrio, R., Lezáun, L.
Format: Article
Language:English
Subjects:
3D finite element modelling
Bolted joint
Bolted joints
Contact
Displacement
Dissipated energy
DOE
Dynamics
Energy dissipation
Equivalent stiffness
Lap joints
Mathematical models
Non-linear behaviour
Three dimensional models
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Summary:Bolted lap joints allow structural assemblies to be made. The answer to requirements, both static and dynamic, depends on the joint behaviour. Bolted joints are a primary source of energy dissipation in dynamic built-up and space structures among others. This paper presents an analysis of a bolted lap joint, subjected to a relative displacement after applying a pre-stress on the bolt in order to characterise the joint behaviour. For this purpose a 3D modelling is made by means of finite elements, using design techniques of experiments (DOE) to fit constitutive contact parameters. The theoretical results relative to elasto-plastic hysteresis cycles of the joint are experimentally validated. Finally, the preload effect and the magnitude of the displacement on the non-linear joint behaviour are analysed to determine equivalent stiffness and dissipated energy in the hysterical loops of the joint.
ISSN:0965-9978
DOI:10.1016/j.advengsoft.2011.09.021