Modeling of stress and strain states induced by torsion of straight rods with elliptical cross sections

7th Modern Technologies in Industrial Engineering

工业技术（总论）

Glovnea, M.^1 ; Manolache-Rusu, C.^1 ; Suciu, C.^1

Stefan Cel Mare University of Suceava, Department of Mechanics and Technologies, 13th University Street, Suceava

720229, Romania^1

关键词: Analytical equations;    Connected domains;    Elliptical cross section;    Machine construction;    Railway construction;    Semi inverse methods;    Stress and strain;    Stress-strain analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/591/1/012047/pdf
DOI  :  10.1088/1757-899X/591/1/012047

学科分类：工业工程学

来源: IOP

【 摘 要 】

Torsion of bars of various cross-section is of great practical utility in engineering, structural design and mechanical work. It is applied in machine construction, steel bridge or railway construction. Many publications can be found in literature that present the stress-strain analysis in the case of straight rods with constant profiles subjected to torsion. Most of these works were however directed to the case of rods with simple connected domains as cross sections. The present work uses a semi-inverse method which permits to determine general equations for stress-strain analysis in the case of rods having a multiple connected domain as cross section, subjected to torsion. For the present study, the general equations were customized for two particular cases that of an elliptical cross section and that of an elliptical ring.The determined analytical equations were implemented to a specific situation by aid of Mathcad software. This permitted to graphically represent the distribution of torsion stresses and cross-section deflection.