Engineering Transactions, 40, 2, pp. 249-266, 1992

Stresses and Strains Induced in a Building Wall by Slow Harmonic Thermo-Humiditive Diffusion

W. Dudziak

Poland

R. Uklejewski

Poland

The Podstrigač-Nowacki theory of thermodiffusion in deformable solids has been used to describe the coupled processes of heat and moisture transport through building walls. The analytic solutions for the stresses and strains induced in a wall material by slow harmonic thermo-humiditive diffusion process are obtained by means of the electric transmission line theory, owing to the electro-elasto-thermo-diffusive analogies.

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References

W.NOWACKI, Thermodiffusion in solid, in: Thermoelasticity [in Polish], Ossolineum, Wroclaw 1977.

J.S.PODSTRIGAČ, Differential equation for the thermodiffusion problem in deformable solids [in Russian], DAN USSR, 2, 1961.

W.NOWACKI and Z.S.OLESIAK, Thermodiffusion in solids [in Polish], PWN, Warsaw 1991.

W.DUDZIAK, R. UKLEJEWSKI, On the application of the electrical transmission line theory in thermodiffusion problem, in solid, Bull. Acad. Pol, Sd., Techn., 34, 3-4, 1986.

W.DUDZIAK and R.UKLEJEWSKI, Heat and moisture transfer in a two-layer building wall at slow harmonic changes of thermo-humiditive environment parameters, based on the theory of thermodiffusion in solids, Eng. Trans., 38, 3, 1990.

W. DUDZIAK and R.UKLEJEWSKI, On the determination of material coefficients of the theory of thermodiffusion in deformable solids for the heat and moisture transfer processes in building walls, Arch. Mech., 44, 2, 1992.

W.N.BOGOSŁOWSKI, Thermal and humiditive processes in buildings [in Polish, transl. from Russian], Arkady, Warsaw 1985.

D.GAWIN and P.KLEMM, A mathematical model of coupled transport of heat and moisture in capillary-porous media [in Polish], Wroclaw University of Technology, 1991 in issue: Processes of heat and mass transfer in building walls [in Polish].

T.CHOLEWICKI, Electrical transmission lines and nonuniform ladder networks [in Polish], PWN, Warsaw 1974.

T.CHOLEWICKI, Analysis of nonuniform electrical networks by the method of difference equations, [in Polish], PWN, Warsaw 1982.

L.PIPES, Direct computation of transmission matrices of electrical transmission lines, J. Frankl, Inst., 281, 1966.

K.OGATA, State space methods in control theory, [in Polish], WNT, Warsaw 1974.