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

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Warianty tytułu
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.
Rocznik
Strony
751--766
Opis fizyczny
Bibliogr. 30 poz., rys., tab., wykr.
Twórcy
  • 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, z.sloderbach@po.opole.pl
Bibliografia
  • [1] Bland D.R. (1956): Elastoplastic thick-walled tubes of work-hardening material subject to internal and external pressures and to temperature gradient. – Journal of Mechanics and Physics of Solids, vol.4, pp.2009-229.
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  • [6] Śloderbach Z. and Pająk J. (2013): Analysis of thick-walled elastic-plastic sphere subjected to temperature gradient. – Journal of Thermal Stresses, vol.36, pp.1077-1095.
  • [7] Śloderbach Z. and Pająk J. (2010): Analysis of thick-walled elastic-plastic sphere subjected to internal pressure, part I. derivation of basic equations and expressions. – Optimization of the Structures of Manufacturing Processes, Opole University of Technology, No.276, pp.85-96.
  • [8] Życzkowski M. and Kordas Z. (1970): Fully plastically forming of the non-circular thick-walled cylinders in the failure state [in Polish]. – Engineering Transactions, IFTR-Reports, Warsaw, vol.21, No.4.
  • [9] Bever M.B., Holt D.L. and Titchener A.L. (1973): The stored energy of cold work. – Progress in Materials Science, London-Oxford, Pergamon Press, vol.17.
  • [10] Śloderbach Z., Pająk J. and Marciniak Z. (2008): Aproximate calculations of the stored energy of plastic deformation in tube bending processes. – Optimization of Production Processes, Opole University of Technology, No.238, pp.169-186.
  • [11] Śloderbach Z. and Pająk J. (2013): Stored energy of plastic deformations in tube bending processes. – International Journal of Applied Mechanics and Engineering, vol.18, No.1, pp.235-248.
  • [12] Sawczuk A., Janas M. and König J. (1972): Plactic Analysis of Constructions. – Wrocław: Ossolineum.
  • [13] Hill R. (1985): The Mathematical Theory of Plasticity. – London: Clarendon Press.
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  • [15] Śloderbach Z. (1980): Bifurcations Criteria for Equilibrium States in Generalized Thermoplasticity [In Polish]. – Doctor’s thesis, IFTR-Reports, No 37/1980, Warsaw.
  • [16] Śloderbach Z. (2016): Closed system of coupling effects in generalized thermo-elastoplasticity. – International Journal of Applied Mechanics and Engineering, vol.1, No.2, pp.461-48. when the material coupling parametr equals unity. – ASME Transactions, Series E87, pp.378-382.
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  • [24] Łagoda T. (2007): Possibilities of application of the deformations energy density parameter in thermal stresses fatique [in Polish]. – Energetyka, Thematic Notebook XIV, ISSN 0013-7294, Katowice, pp.62-64.
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  • [29] Śloderbach Z. and Pająk J. (2017): Determination of the critical state during adiabatic process of thermoplastic deformation of metallic materials. – Journal of Thermal Stresses, vol.40, No.2, pp.255-265.
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Uwagi
PL
Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-fe358522-d276-4899-94f0-32281e3c1be5
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