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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.18 No.6
- 발행연도
- 2016.1
- 수록면
- 1,125 - 1,143 (19page)
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초록· 키워드
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Forced vibration analysis of a simple supported viscoelastic nanobeam is studied based on modified couple stress theory (MCST). The nanobeam is excited by a transverse triangular force impulse modulated by a harmonic motion. The elastic medium is considered as Winkler-Pasternak elastic foundation.The damping effect is considered by using the Kelvin–Voigt viscoelastic model. The inclusion of an additional material parameter enables the new beam model to capture the size effect. The new non-classical beam model reduces to the classical beam model when the length scale parameter is set to zero. The considered problem is investigated within the Timoshenko beam theory by using finite element method. The effects of the transverse shear deformation and rotary inertia are included according to the Timoshenko beam theory. The obtained system of differential equations is reduced to a linear algebraic equation system and solved in the time domain by using Newmark average acceleration method. Numerical results are presented to investigate the influences the material length scale parameter, the parameter of the elastic medium and aspect ratio on the dynamic response of the nanobeam. Also, the difference between the classical beam theory (CBT) and modified couple stress theory is investigated for forced vibration responses of nanobeams.
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참고문헌 (69)
참고문헌 신청
Khadidja Aissani / 2015 / A new nonlocal hyperbolic shear deformation theory for nanobeams embedded in an elastic medium / Structural Engineering and Mechanics, An Int＇l Journal 55(4):743~762
Z. Afkhami / 2016 / Thermo-mechanical vibration and instability of carbon nanocones conveying fluid using nonlocal Timoshenko beam model / Journal of Vibration and Control 22(2):604~618
Abdelouahed Tounsi / 2016 / Size-dependent mechanical behavior of functionally graded trigonometric shear deformable nanobeams including neutral surface position concept / Steel and Composite Structures, An International Journal 20(5):963~981
Al-Basyouni, K. S. / 2015 / Size dependent bending and vibration analysis of functionally graded micro beams based on modified couple stress theory and neutral surface position / Compos. Struct 125:621630
Şeref Doğuşcan Akbaş / 2016 / Analytical solutions for static bending of edge cracked micro beams / Structural Engineering and Mechanics, An Int＇l Journal 59(3):579~599
Z. Afkhami / 2016 / Thermo-mechanical vibration and instability of carbon nanocones conveying fluid using nonlocal Timoshenko beam model / Journal of Vibration and Control 22(2):604~618
Abdelouahed Tounsi / 2016 / Size-dependent mechanical behavior of functionally graded trigonometric shear deformable nanobeams including neutral surface position concept / Steel and Composite Structures, An International Journal 20(5):963~981
Al-Basyouni, K. S. / 2015 / Size dependent bending and vibration analysis of functionally graded micro beams based on modified couple stress theory and neutral surface position / Compos. Struct 125:621630
Şeref Doğuşcan Akbaş / 2016 / Analytical solutions for static bending of edge cracked micro beams / Structural Engineering and Mechanics, An Int＇l Journal 59(3):579~599
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