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A platform for research: civil engineering, architecture and urbanism
The stiffness of laser stake welded T-joints in web-core sandwich structures
AbstractThe purpose of this paper is to describe experiments carried out on laser stake welded T-joints of web-core steel sandwich structures. A special test setup was developed to measure the shear-induced rotation at the T-joint. The ratio of the shear force to rotation angle gave the joint stiffness. This stiffness was measured for specimens with two different face-plate thicknesses. The influence of weld thickness, root gap and occurrence of contact were further investigated with finite element simulations. Finally, the shear stiffness of the sandwich structure transverse to the web plate direction was determined using the experimentally obtained average joint stiffness value. The validation of the shear stiffness was carried out by considering a beam in four-point bending. The agreement between calculated deflection and stress and experimental results was found to be good.
The stiffness of laser stake welded T-joints in web-core sandwich structures
AbstractThe purpose of this paper is to describe experiments carried out on laser stake welded T-joints of web-core steel sandwich structures. A special test setup was developed to measure the shear-induced rotation at the T-joint. The ratio of the shear force to rotation angle gave the joint stiffness. This stiffness was measured for specimens with two different face-plate thicknesses. The influence of weld thickness, root gap and occurrence of contact were further investigated with finite element simulations. Finally, the shear stiffness of the sandwich structure transverse to the web plate direction was determined using the experimentally obtained average joint stiffness value. The validation of the shear stiffness was carried out by considering a beam in four-point bending. The agreement between calculated deflection and stress and experimental results was found to be good.
The stiffness of laser stake welded T-joints in web-core sandwich structures
Romanoff, Jani (author) / Remes, Heikki (author) / Socha, Grzegorz (author) / Jutila, Mikko (author) / Varsta, Petri (author)
Thin-Walled Structures ; 45 ; 453-462
2007-03-16
10 pages
Article (Journal)
Electronic Resource
English
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