Journal of Theoretical
and Applied Mechanics
51, 4, pp. 969-977, Warsaw 2013
and Applied Mechanics
51, 4, pp. 969-977, Warsaw 2013
Problems of numerical bifurcation reproducing in post-critical deformation states of aircraft structures
The study presents results of research on the problem of obtaining credible results of nonlinear FEM analyses of thin-walled load-bearing structures subjected to post-critical loads. The similarity of numerical simulation results and actual stress distribution states depends on the correct numerical reproduction of bifurcations that occur during an advanced deformation process.
Keywords: bifurcation; experiment; finite elements