Experimental evaluation of the material properties for finite element analysis of cold-formed steel sections

Experimental investigations to evaluate the mechanical properties, and the built in residual stresses of channel-shaped cold-roll-formed steel sections are reported in this paper. Tensile coupon tests were used to evaluate the mechanical properties at the flat zones and at the corner zones of the sections. Electrical resistance strain gauges with an 'Electrical Discharge Machining' cutting technique was used to establish the magnitudes, and the …