This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Heating Due to Material Elastic Deformation
Technical Paper
2012-36-0405
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Several projects in engineering involve rotating parts submitted to bending loads, which can result in the material heating. This thermal load happens due to energy loss caused by the material damping. This heat source can be great enough to make the component reach high temperatures and, consequently, risk its performance or even its resistance. A theoretical approach, considering that part of the mechanical energy is converted to thermal energy, implies that the maximum temperature found in a uniform rotary beam is linear dependent with the rotating speed and is directly proportional to the square of the applied load. This work intends to present some results acquired from an experiment performed in a fatigue test machine and also validate the theoretical formulation. Stainless steel (316L) specimens were painted with matte black ink to improve their emissivity. The temperature was measured via a FLIR thermographic infrared camera. The experimental results match with the theoretical prediction. Furthermore, it was evaluated the percentage of the mechanical energy which is converted to thermal loss. The result showed that this fraction also is dependent to the rotation speed and the applied load.
Recommended Content
Authors
Citation
Oliveira, A., Alegre, G., Villalva, S., and Moura, T., "Heating Due to Material Elastic Deformation," SAE Technical Paper 2012-36-0405, 2012, https://doi.org/10.4271/2012-36-0405.Also In
References
- Pantleon, W. Francke, D. Klimanek, P. Modeling adiabatic heating during high-speed deformation Computation Materials Science 7 75 81 1996
- Maquin, F. Pierron, F. Heat dissipation measurements in low stress cyclic loading of metallic materials: From internal friction to micro-plasticity Mechanics of Materials 41 928 942 2009
- Doudard, C. Calloch, S. Hild, F. Roux, S. Identification of heat source fields from infrared thermography: Determination of ‘self-heating’ in a dual-phase steel by using a dog bone sample Mechanics of Materials 42 55 62 2010
- Haward, R. N. Heating effects in the deformation of thermoplastics Thermochimica Acta 247 87 109 1994
- Budynas, R. Nisbett, K. Shigley's Mechanical Engineering Design. McGraw-Hill Series 8th 257 322 USA 2006
- ISO Standard; ISO 1143 Metallic materials - Rotating bar bending fatigue test International Standard 2nd Switzerland 2010
- Incropera, F. Dewitt, D. Bergman, T. Lavine, A. Fundamentos de Transferência de Calor e de Massa LTC 6th 384 Brazil 2008