In modern mechanical engineering, there is a tendency to minimize material consumption
and the weight of products, which is why we are increasingly encountering slender structural
elements. During their design process, a lot of attention must be paid to stability. Loss of
stability is usually a highly undesirable occurrence, but in special cases of applications, such
as in switches, the opposite is true, where functionality is based on the rapid loss of stability.
In the context of the master's thesis, an initially straight pinned-supported beam loaded with
a supercritical force acting along the line connecting the supports will be considered until
the beam buckles and significantly bends. Subsequently, the beam is loaded on the convex
part of the largest transverse deflection with a force acting perpendicular to the line between
the supports until a system jump occurs. The task will thus first require, in accordance with
the theory of large deformations of thin structures, to analyze the conditions on the beam
after buckling, determine the magnitude of bending deformations, the reduction in the
projection of the beam with respect to the line between the supports, and the influence of
these quantities on the critical transverse force of system jump. The theoretical model will
also need to be verified experimentally.
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