The influence of thermomechanical coupling on the behaviour of athick-walled metallic tube subjected to internal pressure

• Autorzy: Śloderbach Z.

Identyfikatory

DOI

10.2478/ijame-2018-0041

• Języki publikacji: EN

Abstrakty

EN

In this study, the influence of thermomechanical coupling effect - the effect of thermal expansion due to dissipation of the energy of plastic deformation, with and without taking into account the stored energy of plastic deformation (SEPD) for the distribution of stresses, strains, temperature, the applied pressure and the residual stresses is examined. The residual stresses remain in a thick-walled tube (a cylindrical thick-walled tank) after removing the internal pressure in the process of purely elastic unloading. The analysis is made on the example of an analitycal solution for a thick-walled tube subjected to a quasistatically increasing internal pressure for the case of adiabatic processes (without heat flow). Since the loading with internal pressure is quasi-static (monotonic), then neglecting the process of heat flow can lead to some different results in calculated stresses, deformations, temperature, internal pressure and residual stresses. The calculations for isothermal type of processes of deformations (without heat or ideal cooling) are also performed for the estimation of these differences. The results calculated for the process with heat flow should be intermediate between the values obtained for isothermal and adiabatic processes.

Słowa kluczowe

EN

thick-walled tube; thermomechanical coupling; actual and residual stresses; strain; pressure

PL

grubościenna rura; naprężenia rzeczywiste; naprężenia szczątkowe; odkształcenia; ciśnienie

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2018
• Tom: Vol. 23, no. 3
• Strony: 751--766
• Opis fizyczny: Bibliogr. 30 poz., rys., tab., wykr.

Twórcy

autor

Śloderbach Z.

• Opole University of Technology Institute of the Innovation of Processes and Products Faculty of Managing the Power Industry 45-370 Opole, ul. Ozimska 75, POLAND

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019)