Abstract
Concrete pipes can be used in many industries which are exposed to different mechanical and thermal loadings. However, in the present work, stress analysis of concrete pipes reinforced with AL2O3 nanoparticles is presented considering agglomeration effects. The pipe is subjected to mechanical, magnetic and thermal loadings. All the equivalent mechanical and thermal properties of structure are obtained using the Mori–Tanaka model. Based on the equilibrium equation, the governing equation is derived. Using an exact solution, the stresses and radial displacement distributions of the structure are calculated. Presenting the effects of AL2O3 nanoparticles volume percentage and agglomeration on the stresses and radial displacement of concrete structure were the main novelties of this study. Numerical results indicate that with increasing 20% AL2O3 nanoparticles volume percentage, the effective stress decreases to 84.8%. Considering 75% agglomeration of AL2O3 nanoparticles leads to 19.54% increase in the effective stress of concrete structure. In addition, the dimensionless radial displacement of structure at the outer surface decreases to 92.49% with increasing 20% AL2O3 nanoparticles volume percentage and increases by 33.55% in the inner surface with considering 75% agglomeration effects.
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Heidarzadeh, A., Kolahchi, R. & Bidgoli, M.R. Concrete Pipes Reinforced with AL2O3 Nanoparticles Considering Agglomeration: Magneto-Thermo-Mechanical Stress Analysis. Int J Civ Eng 16, 315–322 (2018). https://doi.org/10.1007/s40999-016-0130-2
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DOI: https://doi.org/10.1007/s40999-016-0130-2