Statics and Dynamics of Snap-through Effect

Snap-through effect i.e. sudden change of buckling surface is unpleasant phenomenon in behavior of structures especially in thin-walled structures. Geometric non-linear theory (The Total Lagrange Description) must be used. In geometric non-linear solution we have more results and snap-through effect can be explained as a jump between branches of solutions. It can be smooth but mostly this effect is sudden and accompanied with big noise. Examples of imperfect columns, von-Mises truss, shallow arch and steel thin-walled panels are presented.