Autori: Grozea, M. Al., Hadar, A.

Editorial: Mat. Plast., 48 (2), p.202-207, 2011.

Rezumat:

This work brings to the forefront local nonlinear problems that appear in junctions of beam structures made
of plastics, subjected to heavy loads. We also revealed the notions of local problems and heavy loads. These
theoretical aspects are explained with the help of two beam structures of various complexity, made of
plastic, with local problem. The results are presented as stress maps, maps of mechanical strains, charts
with the evolution of the states reached in the structure with the loading steps. We mentioned the situations
that require local study; nonlinear problems classification is presented and the methodology for nonlinear
calculus is described.

Cuvinte cheie: local problem, beam structure, heavy loads, nonlinearity