Yield Onset of Thermo-Mechanical Loading of FGM Thick Walled Cylindrical Pressure Vessels

Authors: S. Ansari Sadrabadi, G. H. Rahimi

Abstract:

In this paper, thick walled Cylindrical tanks or tubes made of functionally graded material under internal pressure and temperature gradient are studied. Material parameters have been considered as power functions. They play important role in the elastoplastic behavior of these materials. To clarify their role, different materials with different parameters have been used under temperature gradient. Finally, their effect and loading effect have been determined in first yield point. Also, the important role of temperature gradient was also shown. At the end the study has been results obtained from changes in the elastic modulus and yield stress. Also special attention is also given to the effects of this internal pressure and temperature gradient in the creation of tensile and compressive stresses.

Keywords: FGM, Cylindrical pressure tubes, Small deformation theory, Yield onset, Thermal loading.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1096845

References:

[1] Obata. Y, A., and Noda. N, B., 1994. “Steady thermal stresses in a hollow circular cylinder and a hollow sphere of a functionally gradient material”. J Thermal Stresses, 17(3), pp. 471–87.
[2] Tutuncu. N, A., and Ozturk. M, B., 2001. “The exact solution for stresses in functionally graded pressure vessels”. Composites:Part B, 32, pp. 683–686.
[3] Eraslana. A.N, A.,Akis. T, B., 2006. “Plane strain analytical solutions for a functionally graded elastic–plastic pressurized tube”. International Journal of Pressure Vessels and Piping, 83, pp. 635–644.
[4] Nie. G.J, A., Batra. R.C, B., 2010. “Material tailoring and analysis of functionally graded isotropic and incompressible linear elastic hollow cylinders”. Composite Structures, 92, pp. 265–274.
[5] Wang. H.M, A., Wei. Y.K, B., 2012. “Effect of material nonhomogeneity on the mechanical behaviors of a thick-walled functionally graded sandwich cylindrical structure”. Results in Physics, 2, pp. 118–122.
[6] Sadeghi. H, A., Baghani. M, B., Naghdabadi. R, C., 2012. “Strain gradient elasticity solution for functionally graded micro-cylinders”. International Journal of Engineering Science, 50, pp. 22–30.
[7] Tutuncu. N, A., 2007. “Stresses in thick-walled FGM cylinders with exponentially-varying properties”. Engineering Structures, 29, pp. 2032–2035.
[8] Jabbari. M, A., Bahtui. A, B.,Eslami. M.R, C., 2009. “Axisymmetric mechanical and thermal stresses in thick short length FGM cylinders”. International Journal of Pressure Vessels and Piping, 86, pp. 296–306.
[9] Keles. I, A., Conker. C, B., 2011. “Transient hyperbolic heat conduction in thick-walled FGM cylinders and spheres with exponentially-varying properties”. European Journal of Mechanics A/Solids, 30, pp. 449-455.
[10] Wang. H.M, A., 2013. “An effective approach for transient thermal analysis in a functionally graded hollow cylinder”. International Journal of Heat and Mass Transfer, 67, pp. 499–505.
[11] Tolga. A, A., 2009. “Elastoplastic analysis of functionally graded spherical pressure vessels”. Computational Materials Sci, 46, May, pp. 545–554.