Modeling of stress-strain state of linear work-hardening conical element of damping system

Abstract

Научно-технический вестник информационных технологий, механики и оптики, Mechanics and Optics, 2017, vol. 17, no. 2, pp. 354-358 (in Russian). doi: 10.17586/2226-1494-2017 Abstract Subject of Research. The paper deals with research of a damping system with elements having an ability to be linear workhardening -work-hardening elements. This system transforms kinetic energy of moving progressively straightforward technical object into deformation energy and work of friction force. Example with element in the form of rigid-plastic conical shell is analyzed. Method. Research was carried out theoretically and was based on theory of thin shells and hypothesis of Kirchhoff-Love. In addition, Coulomb law modeling friction between both contact surfaces and Saint-Venant yield criterion are used. Main Results. Technique of strain-stress state examination in conical shell being deformed by rigid cone in view of friction force was generated. Practical Relevance. Results of research give the possibility to calculate strain-stress state of conical shell at indentation of rigid cone into it. These results open the door for future research of damping systems with plastic element in the form of a conical shell.