Analytical modelling for static stress analysis of pin-loaded lugs with bush fitting

Pin-loaded connections are widely used in the industry. Connecting rods of reciprocating engines in automotive applications or pin-loaded lugs of landing gears and airframe structures can be cited as examples. These systems are subject to thermomechanical cyclic loadings and fatigue mechanisms are o...

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Bibliographic Details
Published inApplied mathematical modelling Vol. 35; no. 1; pp. 1 - 21
Main Authors Antoni, N., Gaisne, F.
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier Inc 2011
Elsevier
Subjects
Analytical modelling
Contact
Elastoplasticity
Exact sciences and technology
Fracture mechanics (crack, fatigue, damage...)
Fundamental areas of phenomenology (including applications)
Inelasticity (thermoplasticity, viscoplasticity...)
Non-axisymmetric loading
Physics
Pin-loaded lug
Solid mechanics
Static elasticity (thermoelasticity...)
Stress analysis
Structural and continuum mechanics
Stress analysis
Pin-loaded lug
Non-axisymmetric loading
Elastoplasticity
Analytical modelling
Contact
Bolted joint
Fatigue life
Sensitivity analysis
Thermal fatigue
Fastener
Modeling
Optimization
Concentrated load
Finite element method
Inelasticity
Model matching
Asymmetry
Static analysis
Cyclic load
System identification
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Summary:Pin-loaded connections are widely used in the industry. Connecting rods of reciprocating engines in automotive applications or pin-loaded lugs of landing gears and airframe structures can be cited as examples. These systems are subject to thermomechanical cyclic loadings and fatigue mechanisms are often observed. The calculation of stresses in the lug is crucial in view of a fatigue lifetime analysis. Analytical modelling may be very helpful in the early design stage, by allowing fast parametric studies and the identification of the most influent parameters on the response in stresses. In this paper, we propose analytical models for bush fitting and pin-loading conditions, leading to the complete calculation of the stress distribution in the lug. In each case, the analytical solutions are compared with finite element simulations. In the last part, we perform a sensitivity analysis as an application of the presented analytical tools.
ISSN:0307-904X
DOI:10.1016/j.apm.2010.05.002