Torsional buckling of thin-walled beams in presence of bimoment induced by axial loads
Abstract
In this paper the influence of the bimoment induced by external axial loads on the elastic torsional buckling of thin-walled beams with open cross-section is studied. The governing differential equations of a deformed thin-walled beam consistent with Vlasov's classical assumptions are derived applying the principle of virtual displacements. It is shown that in the cross sections with lack of symmetry the bimoment can considerably affect the torsional buckling load. The obtained results are verified using ANSYS finite element software.
Keywords:
bimoment / thin-walled beams / torsional bucklingSource:
Tehnički vjesnik / Technical Gazette, 2015, 22, 1, 183-189Publisher:
- Strojarski Facultet
Funding / projects:
- Computational mechanics in structural engineering (RS-MESTD-Basic Research (BR or ON)-174027)
DOI: 10.17559/TV-20140613113640
ISSN: 1330-3651