The work presented in this thesis is concerned with the static and dynamic analyses of single lap-jointed cantilevered beams. An analytical model is presented for predicting the stress distribution within a single lap-jointed beam under tension. With suitable boundary conditions, the stress distribution of the adhesive at the longitudinal direction is determined. However, the simplifying assumptions of the analytical model are too restrictive. Consequently, all analysis carried out are based on the finite element method. The stress distribution of a single-lap jointed cantilevered beam under tension has been investigated using the three dimensional FEA method. The results show that there is considerable variation in the stress distribution across the width, and that the highest stress concentrations occur in the portions of the adhesive layer closest to the clamped end of the bonded beam. Four finite element models to analyse the behaviour of adhesively bonded joints are described. Comparisons are performed between models with different modelling approaches as well as different types of element combinations in order to find a suitable model to predict the mechanical behaviour of adhesively bonded joints. The effects of typical boundary conditions and of adhesive properties were also investigated. The results indicate that the stress distributions of a single-lap jointed cantilevered beam are strongly affected by the boundary conditions of the beam and by the elastic properties of the adhesive.
| Identifer | oai:union.ndltd.org:bl.uk/oai:ethos.bl.uk:627916 |
| Date | January 2003 |
| Creators | He, Xiaocong |
| Publisher | University of Manchester |
| Source Sets | Ethos UK |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
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