Dynamic equilibriums of nonprismatic thin-walled beams considering the effects of transverse shear deformations defined on an arbitrary coordinate system

摘要

In this paper, Hamilton's principle is used to derive the dynamic equilibrium equations of nonprismatic composite beams of generic section considering the effects of transverse shear deformations. The displacements are defined on an arbitrarily selected coordinate system. The obtained dynamic equilibrium equations and natural boundary conditions are highly coupled.