The ultimate strength and ductility characteristics of the intermittently welded stiffened plates under the action of in-plane axial compression are investigated in this paper. A series of detailed numerical analyses of longitudinally stiffened steel plates subjected to in-plane compressive load is performed using the ADINA commercial finite element code. Complete equilibrium paths are traced up to collapse for a nonlinear elastic-plastic response of stiffened plates. Analyzed stiffened plates are imperfect and their aspect ratio, plate slenderness, and column slenderness are changed in a systematic manner. Different types of stiffener are chosen for stiffened plate models. Three different stiffener-to-plate welding procedures are considered: continuous, chain intermittent, and staggered intermittent fillet welding.

Issue Section:
Research Papers
Keywords:
ductility, mechanical strength, plates (structures), welding, stiffened plate, intermittent welding, in-plane axial compression, ultimate strength, ductility
Topics:
Ductility, Plates (structures), Tensile strength, Welding, Finite element analysis, Compression
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