Hi Sir ,nThanks for the response sir. The beam is simply supported. Do i need to perform non linear buckling analysis to obtain lateral displacement in this case? as the failure will we lateral torsional buckling? nHow to find the peak load in this case.? My previous analysis shown a increasing load curve onlynalso I would like to know the loading setup if in case the loading was given as force/min until the structure failed? That's my second case of study. n