<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Bimetals are usual designed by use of analytical formulas based on the beams theory from the Strength of materials. The paper presents a FEA study of a bimetal beam with two layers: Invar and Copper. The sensitivity of the thickness of layers was considered for: equal layers thickness, thickness calculated with a formula recommended in classical literature for optimizing the deformation (based on the Young modulus of the components) and several intermediary thickness values. For the case of the equal layers thickness the results from FEA and analytical formulas are compared. For all the studied models stress and deformation components from the longitudinal symmetry plane area are presented by comparison. The CAD and FEA models were developed within the FreeCAD open-source package.</p>
</abstract>

Bimetals are usual designed by use of analytical formulas based on the beams theory from the Strength of materials. The paper presents a FEA study of a bimetal beam with two layers: Invar and Copper. The sensitivity of the thickness of layers was considered for: equal layers thickness, thickness calculated with a formula recommended in classical literature for optimizing the deformation (based on the Young modulus of the components) and several intermediary thickness values. For the case of the equal layers thickness the results from FEA and analytical formulas are compared. For all the studied models stress and deformation components from the longitudinal symmetry plane area are presented by comparison. The CAD and FEA models were developed within the FreeCAD open-source package.

Some Aspects on the Elastic Behavior of a Bimetal Considering the Sensitivity of the Thickness of the Layers

“Gheorghe Asachi” Technical University of Iaşi, Faculty of Mechanical Engineering

Department of Mechanical Engineering, Mechatronics and Robotics

Bulletin of the Polytechnic Institute of Iași. Machine constructions Section

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Bimetals are usual designed by use of analytical formulas based on the beams theory from the Strength of materials. The paper presents a FEA study of a bimetal...

Some Aspects on the Elastic Behavior of a Bimetal Considering the Sensitivity of the Thickness of the Layers

Published Online: Jan 22, 2024

Page range: 133 - 142

Received: Dec 21, 2023

Accepted: Dec 30, 2023

DOI: https://doi.org/10.2478/bipcm-2023-0030

Keywords
Bimetal, sensitivity, layer thickness, elasticity, FreeCAD

© 2023 Mihail Aignătoaie, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Some Aspects on the Elastic Behavior of a Bimetal Considering the Sensitivity of the Thickness of the Layers

Published Online: Jan 22, 2024

Page range: 133 - 142

Received: Dec 21, 2023

Accepted: Dec 30, 2023

DOI: https://doi.org/10.2478/bipcm-2023-0030

KeywordsBimetal, sensitivity, layer thickness, elasticity, FreeCAD

© 2023 Mihail Aignătoaie, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
Bimetal, sensitivity, layer thickness, elasticity, FreeCAD