Theory and experimental verification of thermal stresses in Cosserat medium

• Autorzy: Sikoń M.
• Języki publikacji: EN

Abstrakty

EN

An asymmetrical inter-atomic action, basic for a thermal couple stress presence, has been investigated in this work. A mechanical description of a Cosserat thermoelasticity is replaced by an equivalent magnetic representation. Then, a magnetization of a medium is analyzed. An experimental demonstration of the occurrence of the non-central load of the atom has been made applying the Electron Paramagnetic Resonance spectrometer. The mathematical model of the measurements has been presented in form of Bloch equations with extension to Cosserat medium.

Słowa kluczowe

EN

EPR method; nonsymmetrical thermoelasticity

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2009
• Tom: Vol. 57, nr 2
• Strony: 177--180
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Sikoń M.

• Cracow University of Technology, 37 Jana Pawla 11 St., 31-863 Cracow, Poland,

Bibliografia

• [1] W. Voight, "Theoretishe Studien über die Elastizitätsverhältnisse der Kristalle", Abh. Ges. Wiss. Gottning 43, (1887).
• [2] E.F. Cosserat, Theorie des corps Deformables, A. Hermann, Paris, 1909.
• [3] C. Woźniak, "Thermoelasticity of micro materials", Bull. Pol. Ac.: Tech. 14,51 (1964).
• [4] W. Nowacki, "Couple-stresses in the theory of the thermoelasticity", Bull. Pol. Ac.: Tech. 14, 8 (1966).
• [5] S. Kaliski, "Thermo-magneto-microelasticity", Bull. Pol. Ac.: Tech. 16, 1-7 (1968).
• [6] J. Dyszlewicz, "Axially symmetric stress problem of micropalar elasticity and thermoelasticity", Bull. Pol. Ac.: Tech. 21 (7-8), 321 (1973).
• [7] R. Lakes, "Experimental method for study of Cosserat elastic solids and other generalized elastic continua", in Continuum Models for Materials with Micro-Structure, J. Wiley, New York, 1995.
• [8] M. Sikon, "Nonlinear photoelasticity", 23rd Symposium on Experimental Mechanics of Solids, CD ROM (2000).
• [9] A. Oles, Experimental Methods of the Solid State Physics, Technical-Science Publisher, Warsaw, 1998.
• [10] M. P. Wnuk, Foundations of Fracture Mechanics, Scientific Publisher Akapit, Krak6w, 2008.
• [11] G. Szefer, "Fundamentals of nanomechanics of materials", 23rd Symposium on Experimental Mechanics of Solids, CD ROM (2000).
• [12] C. Kittel, Introduction to Solid State Physics, PWN, Warsaw, 1999.
• [13] M. Sikoń, "Thermal couple stress nanomechanics", Proc 5th Into Congress on Thermal Stresses and Related Topics TS2003, CD ROM (2003).