25 research outputs found
Applicability of Moringa oleifera Lam. pie as an adsorbent for removal of heavy metals from waters
Dissolution and biodurability: Important parameters needed for risk assessment of nanomaterials
The role of nanomaterials as effective adsorbents and their applications in wastewater treatment
Impact of finite element idealisation on the prediction of welded fuselage stiffened panel buckling
Lap joints are widely used in the manufacture of stiffened panels and influence local panel sub-component stability, defining buckling unit dimensions and boundary conditions. Using the finite element method it is possible to model joints in great detail and predict panel buckling behaviour with accuracy. However, when modelling large panel structures such detailed analysis becomes computationally expensive. Moreover, the impact of local behaviour on global panel performance may reduce as the scale of the modelled structure increases. Thus this study presents coupled computational and experimental analyses, aimed at developing relationships between modelling fidelity and the size of the modelled structure, when the global static load to cause initial buckling is the required analysis output. Small, medium and large specimens representing welded lap-joined fuselage panel structure are examined. Two element types, shell and solid-shell, are employed to model each specimen, highlighting the impact of idealisation on the prediction of welded stiffened panel initial skin buckling. </jats:p