Torsion of the bar of the round transverse section from the variable on length and the transverse section porosity

Abstract

The present article is devoted to the task of finding of level of the secondary tangent voltages arising in sections because of a variable on porosity length. The decision of such task will allow to consider secondary tangent voltages in case of determination of bearing capacity of a porous bar. Distribution of porosity on a transverse section is set rationally - pro-ceeding from early the solved tasks on selection of porosity in case of torsion of a bar of a round transverse section, on bar length – under the linear law. A research objective is to determine the level of secondary tangent voltages and to evaluate from value.

Keywords

• porosity
• torsion
• circle
• rationality
• bar
• tangent tension
• shift module
• superelement
• secondary tangent tension