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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.20 No.3
- 발행연도
- 2017.1
- 수록면
- 329 - 342 (14page)
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In this paper, the dispersion characteristics of elastic waves propagation in sandwich nano-beams with functionally graded (FG) face-sheets reinforced with carbon nanotubes (CNTs) is investigated based on various high order shear deformation beam theories (HOSDBTs) as well as nonlocal strain gradient theory (NSGT). In order to align CNTs as symmetric and asymmetric in top and bottom face-sheets with respect to neutral geometric axis of the sandwich nano-beam, various patterns are employed in this analysis. The sandwich nano-beam resting on Pasternak foundation is subjected to thermal, magnetic and electrical fields. In order to involve small scale parameter in governing equations, the NSGT is employed for this analysis. The governing equations of motion are derived using Hamilton's principle based on various HSDBTs. Then the governing equations are solved using analytical method. A detailed parametric study is conducted to study the effects of length scale parameter, different HSDBTs, the nonlocal parameter, various aligning of CNTs in thickness direction of face-sheets, different volume fraction of CNTs, foundation stiffness, applied voltage, magnetic intensity field and temperature change on the wave propagation characteristics of sandwich nano-beam. Also cut-off frequency and phase velocity are investigated in detail. According to results obtained, UU and VA patterns have the same cut-off frequency value but AV pattern has the lower value with respect to them.
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참고문헌 (52)
참고문헌 신청
Ansari, R. / 2014 / Nonlinear vibrations of functionally graded mindlin microplates based on the modified couple stress theory / Compos Struct 114:124~134
Ansaria, R. / 2014 / On the forced vibration analysis of Timoshenko nanobeams based on the surface stress elasticity theory / Compos. Part B : Eng 60:158~166
Arefi, M. / 2017 / Thermo-electro-mechanical bending behavior of sandwich nanoplate integrated with piezoelectric face-sheets based on trigonometric plate theory / Compos. Struct 162:108~122
Arefi, M. / 2017 / Vibration and bending analysis of a sandwich microbeam with two integrated piezomagnetic face-sheets / Compos. Struct 159:479~490
Arvin, H. / 2013 / Nonlinear free vibration analysis of rotating composite Timoshenko beams / Compos. Struct 96:29~43
Ansaria, R. / 2014 / On the forced vibration analysis of Timoshenko nanobeams based on the surface stress elasticity theory / Compos. Part B : Eng 60:158~166
Arefi, M. / 2017 / Thermo-electro-mechanical bending behavior of sandwich nanoplate integrated with piezoelectric face-sheets based on trigonometric plate theory / Compos. Struct 162:108~122
Arefi, M. / 2017 / Vibration and bending analysis of a sandwich microbeam with two integrated piezomagnetic face-sheets / Compos. Struct 159:479~490
Arvin, H. / 2013 / Nonlinear free vibration analysis of rotating composite Timoshenko beams / Compos. Struct 96:29~43
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