English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

A novel theory of torsion of thin walled beams (“shear deformable beams”) of arbitrary open cross-sections with influence of shear (TTTS) is presented. The theory is based on the classical Vlasov’s theory of thin-walled beams of open cross-section, as well on the Timoshenko’s beam bending theory. The theory is valid for general thin-walled open cross-section shapes, for distributed and concentrated transverse torsion loads and for isotropic materials. Four parameters due to shear warping are introduced. Closed-form analytical solutions for three-dimensional expressions of the normal and shear stresses are obtained. Under general transverse loads, reduced to moments of torsion with respect to the cross-section principal pole (by Vlasov’s theory), for arbitrary cross-sections, the beam will be subjected to  torsion with influence of shear  and in addition to  bending due to shear  in the beam principal planes and to  tension/compression due to shear . The theory is tested by comparing it to the classical Vlasov’s thin-walled beam theory and to the finite element method using shell elements, as well as to some results in literatures.

A theory of torsion of thin-walled beams of arbitrary open sections with influence of shear