Static and dynamic consistent perturbation analysis for nonlinear inextensible planar frames
A numerical-perturbation method for analyzing nonlinear planar frames is illustrated. The displacement fields are obtained by asymptotic integration of the field equations. Calculations are rearranged in a way they can be made by a computer. Modeling is carried out in the context of the mixed formulation of elasticity. The semi-analytical results are in excellent agreement with FEM analyses.
planar frame inextensible beam nonlinear statics nonlinear dynamics perturbation methods