The physical,mechanical properties and microstructures of three 2618 Aluminum alloys containing less than 0.046 wt.-%mischmetal have been studied.lt has been shown that the trace mischmetal has no obvious influence on...The physical,mechanical properties and microstructures of three 2618 Aluminum alloys containing less than 0.046 wt.-%mischmetal have been studied.lt has been shown that the trace mischmetal has no obvious influence on the physical properties of the.alloy,but can clearly improve plasticity and toughness,and slightly raise the thermal stability.展开更多
This work reviews the ultimate compressive strength of aluminium plates and stiffened panels.The effect of boundary condition,initial imperfection,welding-induced residual stress and heat-affected zone are discussed.A...This work reviews the ultimate compressive strength of aluminium plates and stiffened panels.The effect of boundary condition,initial imperfection,welding-induced residual stress and heat-affected zone are discussed.As the effect of manufacturing technology lacks in the literature,this effect is analysed employing the finite element method,considering the technology of welding and integrated extrusion.The numerical analyses have shown that the ultimate strength of the integrated extruded stiffened panel is relatively higher than the one of the traditional welded panel.展开更多
文摘The physical,mechanical properties and microstructures of three 2618 Aluminum alloys containing less than 0.046 wt.-%mischmetal have been studied.lt has been shown that the trace mischmetal has no obvious influence on the physical properties of the.alloy,but can clearly improve plasticity and toughness,and slightly raise the thermal stability.
基金This work is supported by the“National Natural Science Foundation of China(Grant No.51709212)”This work also contributes to the Strategic Research Plan of the Centre for Marine Technology and Ocean Engineering,which is financed by the Portuguese Foundation for Science and Technology(Fundação para a Ciência e Tecnologia-FCT)under contract UIDB/UIDP/00134/2020.
文摘This work reviews the ultimate compressive strength of aluminium plates and stiffened panels.The effect of boundary condition,initial imperfection,welding-induced residual stress and heat-affected zone are discussed.As the effect of manufacturing technology lacks in the literature,this effect is analysed employing the finite element method,considering the technology of welding and integrated extrusion.The numerical analyses have shown that the ultimate strength of the integrated extruded stiffened panel is relatively higher than the one of the traditional welded panel.
