Dynamic Response of Viscoplastic Thin-Walled Griders in Torsion.




Tytuł czasopisma

ISSN czasopisma

Tytuł tomu


Lodz University of Technology. Faculty of Mechanical Engineering. Department Division of Dynamics.
Wydawnictwo Politechniki Łódzkiej. Wydział Mechaniczny. Katedra Dynamiki Maszyn.


This work deals with an analysis of isotropic or orthotropic girders subjected to transient dynamic loads. The duration of dynamic loading was assumed to be equal to a period of the natural fundamental flexural vibrations of a structure under analysis. Numerical calculations were performed with the finite element method using ANSYS® 11.0 software. The results of computations were presented as maximum angle of the rotation of the girder in a function of the dynamic load factor, DLF (the ratio of pulse loading amplitude to static critical load). In study it has been taken into account apart from the elastic–plastic range of material with isotropic hardening as well as the strain rate effect described by Perzyna model.


Słowa kluczowe

finite elements method, carbon–epoxy laminate, post–critical deformation states, thin–walled beams, metoda elementów skończonych, laminat epoksydowo-węglowy, krytyczne stany po deformacji, belka cienkościenna


Mechanics and Mechanical Engineering Vol. 17, No. 1, 2013, str. 7–16