SeismoStruct is an award-winning Finite Element package capable of predicting the large displacement behaviour of space frames under static or dynamic loading, taking into account both geometric nonlinearities and material inelasticity.
Request Academic version:
https://seismosoft.com/free-academic-li ... ismostruct
Note: Academic license provided for free with some limitations - The Academic/Trial Version supports code-based checks of up to twenty members and cannot send support email to Seismosoft within the program.