학술논문
Thermo-mechanical analysis of a glass-ceramic piston for potential use in combustion engines
Document Type
Conference
Author
Source
2022 Advances in Science and Engineering Technology International Conferences (ASET) Science and Engineering Technology International Conferences (ASET), 2022 Advances in. :1-6 Feb, 2022
Subject
Language
Abstract
The temperature of combustion engine pistons, e.g., 370 °C, along with their high thermal coefficient of expansion, are limiting design factors. The use of ceramic in the majority of the present literature is directed toward exploring its potential as a coating only, i.e., a thermal barrier. This work, however, investigates the applicability of glass-ceramic as a construction material for the engine piston in replacement of its metallic conventional candidates. Firstly, in attempts to find the most suitable ceramic material, a selection screening of several grades is performed using ANSYS Granta Edupack software. Secondly, a thermo-mechanical analysis is performed to compare between glass-ceramic, Aluminum and stainless steel that can best fit the piston application. It was found that the maximum induced Von-Mises stresses are reduced by more than 200% when glass-ceramic was used. Similarly, the maximum deformation was seen to be extremely lower compared to Aluminum and stainless steel. Different other possible high-strength glass-ceramic materials are also discussed. Overall, the FEA outcomes in conjunction with the findings of high-strength glass-ceramics present an attractive foundation as future candidates to pistons potentially used in aerospace applications.