Behaviour and instabilities of open thin-walle4d elements.part 1: behaviour

摘要

This part concerns the behaviour of open thin-walled elements.Vlassov's model is applied Experimental results on beam loaded in flexion and torsion are presented.Also,the behaviour of I column with eccentric axial loads causing a bimoment are reported.Normal stresses are measured along elements with gauge method.The results are compared to numerical ones,obtained on finite element code.An element 3D beam with warping is used.in open sections,the warping is too important that the torsion effects is similar to the flexion and membrane effects.