TY - JOUR TI - Parametric studies on buckling of thin walled channel beams A1 - SudhirSastry, Y.B. A1 - Krishna, Y. A1 - Budarapu, Pattabhi R. N2 - Abstract The lateral buckling analysis of cold-formed thin walled beams subjected to pure bending moments has been performed. The critical buckling loads are estimated based an optimization criteria. The estimated critical buckling stresses are compared with the published results, they show excellent agreement. The effect of the beam length, radius and thickness of the flanges and the length of the extended open flanges, on the critical buckling stresses have been studied for several combinations of the geometric parameters of the beam. Among the three beams, the critical buckling moments for the beam with the extended open flanges are found to be the maximum. However, considering the material and manufacturing costs, beams with rounded cross section are efficient in resisting the buckling loads. UR - http://www.sciencedirect.com/science/article/pii/S0927025614005448 PB - Elsevier ID - eprints2646 Y1 - 2015/01// SN - 0927-0256 N1 - Special Issue Polymeric Composites AV - none VL - 96, B KW - Finite element analysis KW - Buckling KW - Thin-walled beams JF - Computational Materials Science EP - 424 SP - 416 ER -