Local Dynamic Buckling of C-Shape Profile Subjected to Bending

Ładowanie...
Miniatura

Data

2011

Tytuł czasopisma

ISSN czasopisma

Tytuł tomu

Wydawca

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

Abstrakt

This paper deals with local dynamic buckling of thin-walled girder segments (short beam-columns) subjected to bending. Various shapes of pulse loading (triangle, trapezoid and rectangle) with a duration corresponding to the fundamental period of vibration were taken into account. Assumed boundary conditions correspond to a simple support, this agrees with conditions that exist in the place of the diaphragm in a long spar. The problem was solved by finite element method. In order to determine the critical load pulse amplitudes Volmir, Budiansky-Hutchinson, Ari-Gur and Simonetta criteria were employed.

Opis

Słowa kluczowe

thin-walled structures, dynamic buckling, pulse loading, C-shape girders, konstrukcje cienkościenne, wyboczenie dynamiczne, obciążenie impulsowe, dźwigary w kształcie litery C

Cytowanie

Mechanics and Mechanical Engineering, Vol. 15, No. 2, 2011, s. 133-148