Propagatlon of Rayleigh-Lamb waves in thermomicrostretch elastic plates

• Autorzy: Pathania D. S. , Sharma J. N. , Kumar R.
• Języki publikacji: EN

Abstrakty

EN

The propagation of waves in a thermo-microstretch elastic plate subjected to stress free isothermal and thermally insulated conditions is investigated in the context of the conventional coupled thermoelasticity (CT), Lord-Shulman (LS), and Green-Lindsay (GL) theories of thermoelasticity. The secular equations for the thermomicrostretch elastic plate in a closed form and isolated mathematical conditions for the symmetric and skewsymmetric wave mode propagation in completely separate terms are derived. The secular equations for the thermo-microstretch elastic plate, coupled thermoelastic, micropolar elastic, thermoelastic and elastic plates have been deduced as particular cases from the secular equations derived. At short wave length limits, the secular equations for the symmetric and skew symmetric waves in stresses free, thermally insulated and isothermal, thermo-microstretch elastic plate reduce to the Rayleigh surface wave's frequency equation. Finally, in order to illustrate the analytical development, the numerical solution is carried out for aluminum-epoxy composite material. The symmetric and skew symmetric wave modes are computed numerically and presented graphically. The theory and numerical computations are found to be in close agreement.

Słowa kluczowe

EN

microstretch; secular equations; characteristics roots; attenuation

PL

mikrostruktura; materiały elastyczne; fala Rayleigha

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2007
• Tom: Vol. 12, no 4
• Strony: 1147--1163
• Opis fizyczny: Bibliogr. 26 poz., wykr.

Twórcy

autor

Pathania D. S.

autor

Sharma J. N.

autor

Kumar R.

• Department ot Mathematics, GuruNanak Dev Eng.College Ludhiana (Punjab) INDIA,

Bibliografia

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