EXAMINATION OF THERMAL STRESSES OCCURRING IN CIRCULAR DISCS BY FINITE ELEMENT METHOD

Year 2021, , 259 - 270, 31.08.2021

Hüseyin Fırat Kayıran

https://doi.org/10.46519/ij3dptdi.954792

Cited By: 2

Abstract

In this study, thermal stress analysis on discs consisting of two different materials was analyzed analytically. Disc materials were selected SiC/6061 Al Alloy composite and Al-7075 respectively. Assuming that the elasticity module does not change with temperature, thermal stress analysis was performed under constant temperature distributions in the area from the inner surface of the disc to the outer surface. Thermal stress analysis was performed under constant temperature distribution. A computer program was developed for the calculation and the ANSYS finite element program was used. The values obtained from the analysis are presented in tables and graphs. There have been differences in radial and tangential stresses that occur because the elasticity modules and thermal expansion coefficients of the materials that make up the discs are different. The radial stress value has always been determined as zero on the innermost and outermost surfaces of the discs. Tangential stresses under constant temperature distribution from the inner surface to the outer surface occurred as pressure on the inner part of the disc and tensile stress on the outer part. It is concluded that the stresses occurring in the SiC /6061 Al alloy composite material are greater than those of AL-7075

Keywords

SiC-6061 Al Alloy composite disc, Aluminum Al7075 disc, thermal stress analysis, modulus of elasticity., ANSYS

EXAMINATION OF THERMAL STRESSES OCCURRING IN CIRCULAR DISCS BY FINITE ELEMENT METHOD

Abstract

In this study, thermal stress analysis on discs consisting of two different materials was analyzed analytically. Disc materials were selected SiC/6061 Al Alloy composite and Al-7075 respectively. Assuming that the elasticity module does not change with temperature, thermal stress analysis was performed under constant temperature distributions in the area from the inner surface of the disc to the outer surface. Thermal stress analysis was performed under constant temperature distribution. A computer program was developed for the calculation and the ANSYS finite element program was used. The values obtained from the analysis are presented in tables and graphs. There have been differences in radial and tangential stresses that occur because the elasticity modules and thermal expansion coefficients of the materials that make up the discs are different. The radial stress value has always been determined as zero on the innermost and outermost surfaces of the discs. Tangential stresses under constant temperature distribution from the inner surface to the outer surface occurred as pressure on the inner part of the disc and tensile stress on the outer part. It is concluded that the stresses occurring in the SiC /6061 Al alloy composite material are greater than those of AL-7075.

Keywords

SiC-6061 Al Alloy composite disc, Aluminum Al7075 disc, Thermal stress analysis, Modulus of elasticity, ANSYS

References

• 1. Kumar, R.S., Lawrence, D., Jayabal, S., “Characterization of particulate reinforced aluminium 7075-TiB-2 composites”, International Journal of Civil Engineering and Technology, Vol. 8, Issue 9, Pages 178-190, 2017.
• 2. Horgan C., Chan A., “The stress response of functionally graded isotropic linearly elastic rotating discs”, Journal of Elasticity, Vol. 55, Issue 1, Pages 219-230, 1999.
• 3. Güllü, E., Pala, Y., “Analysis on rotating disc with constant surface velocity”, Pamukkale University Journal of Engineering Sciences, Vol. 6, Issue 1, Pages 39-45, 2000.
• 4. Kayıran, H.F., “Boron-carbide (B4C) thermal stress analysis of a disc”, 2nd International Mediterranean Symposium, Pages 47-65, Mersin, 2019.
• 5. Kayıran, H.F., “Investigation of thermal stress behavior of discs with different diameters of aluminum (al2024- t3) boron carbide (B4C)”, 4th International Mediterranean Symposium, Pages 81-98, Mersin, 2020.
• 6. Kayıran, H.F., “Investigation of elastic tensile behavior of thermoplastic discs reinforced with steel wires”, Journal of Intelligent Systems and Applications, Vol. 3, Issue 2, Pages 73-76, 2020.
• 7. Boğa, C., Yıldırım, V., “Direct application of the complementary functions method (CFM) to the static analysis of rotating discs with both parabolic-varying thickness profile and functionally graded (fg) material”, Research on Engineering Structures and Materials, Vol. 3, Issue 1, Pages 11-25, 2017.
• 8. Dimitoka, K., Lightning B., "Calculation of thermal stresses in thermal barrier coatings made of layered and functional graded materials by finite element method”, Journal of Engineers and machines, 19(3), 81-98, 2003. Vol. 19, Issue 3, Pages 81-98, 2017.
• 9. Jahed, H., Shirazi, R., “Loading and unloading behaviour of a thermoplastic disc”, International Journal of Pressure Vessels and Piping , 78(9), 637. Vol. 78, Issue 6, Pages 37-45, 2017.
• 10. Ozdemir, A.,” Determination of fracture toughness values of ceramic materials by three-dimensional finite element method", Dokuz September University, Izmir, 2006.
• 11. Hassani, A., Gholami, M., “Analytical and numerical bending solutions for thermoelastic functionally graded rotating discs with non-uniform thickness based on Mindlin's theory”, Journal of Stress Analysis, Vol. 2, Issue 1, Pages 35-49, 2017.
• 12. Timeshenko, S., Goodier, J.N., “Theory of elasticity”, Pages 77-90, McGraw-Hill, New York, 1970.
• 13. Farayibi, P.K., Akinnuli, B.O., Ogu, S., “Mechanical properties of aluminum–4043/nickel coated silicon carbide composites produced via stir casting”, International Journal of Engineering Technologies, Vol. 4, Issue 1, Pages 41-46, 2018.
• 14. Auger, P.,” Production and characterization of 7075 aluminum alloys", Yıldız Technical University, İstanbul, 2011.
• 15. Çallıoğlu, H., Karakaya, P., "Thermal back analysis of a stratified disc", Journal of electronic machine technologies, Vol. 5, Issue 1, Pages 61-68, 2008.
• 16. Ersan, Ç., “Thermal stress analysis in functionally graded discs”, Pamukkale University, Denizli, 2008.
• 17. Sen, F., Akyuz, B., "Analysis of thermal stresses in metal matrix composite rotating disc in shallow effect", Journal of Engineering of Dicle University Faculty of Engineering, Vol. 4, Issue 1, Pages 51-60, 2013.
• 18. Kayıran, H.F., “Numerical analysis of displacements in circular discs applied with different materials”, Asia Mathematica, Vol. 5, Issue 1, Pages 168-177, 2021.