polymer composite materials, strength, stability, compression with bending, prosthetic leg
Abstract
The paper considers a thin-walled tubular shell of a prosthetic leg made of a composite material based on single-directional, fabric or chaotic reinforcement structures. The character of loading is compression with bending. The paper presents an analytical study of the stability of the orthotropic shell under compression and a numerical study of the stability under compression with bending, taking into account embedded connecting elements. It also provides an assessment of the strength. It proves that the most rational reinforcement structure is a fabric one. With practically feasible thicknesses, sizes and loads of prosthesis operation, there is no loss of stability of the tubular elements of the prostheses.
Author Biographies
Sergey Borisovich Sapozhnikov, South Ural State University, Chelyabinsk
Dr. Sc. (Engineering), Professor, Chief Researcher of the Department of Technical Mechanics
Mikhail Vladilenovich Zhikharev, South Ural State University, Chelyabinsk
Cand. Sc. (Engineering), Deputy Director of the Center for Applied Research and Development of New Structural Materials
Vadim Viktorovich Erlich, South Ural State University, Chelyabinsk
Dr. Sc. (Biological), Associate Professor, Director of the Institute of Sports, Tourism and Service, Professor of the Department of Theory and Methodology of Physical Culture and Sports
Pavel Asifovich Baiguzhin, South Ural State University, Chelyabinsk
Dr. Sc. (Biological), Leading Researcher at the Sports Science Research Center; Institute of Sports, Tourism and Service
