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Steel and Composite Structures Volume 50, Number 1, January 10 2024 , pages 15-24 DOI: https://doi.org/10.12989/scs.2024.50.1.015 |
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A review on dynamic characteristics of nonlocal porous FG nanobeams under moving loads |
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Abdulaziz Saud Khider, Ali Aalsaud, Nadhim M. Faleh, Abeer K. Abd, Mamoon A.A. Al-Jaafari and Raad M. Fenjan
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Abstract | ||
This research presents dynamical reaction investigation of pore-dependent and nano-thickness beams having functional gradation (FG) constituents exposed to a movable particle. The nano-thickness beam formulation has been appointed with the benefits of refined high orders beam paradigm and nonlocal strain gradient theory (NSGT) comprising two scale moduli entitled nonlocality and strains gradient modulus. The graded pore-dependent constituents have been designed through pore factor based power-law relations comprising pore volumes pursuant to even or uneven pore scattering. Therewith, variable scale modulus has been thought-out until process a more accurate designing of scale effects on graded nano-thickness beams. The motion equations have been appointed to be solved via Ritz method with the benefits of Chebyshev polynomials in cosine form. Also, Laplace transform techniques help Ritz-Chebyshev method to obtain the dynamical response in time domain. All factors such as particle speed, pores and variable scale modulus affect the dynamical response. | ||
Key Words | ||
design; dynamic response; moving load; nonlocal strain gradient theory; pores | ||
Address | ||
Abdulaziz Saud Khider, Ali Aalsaud, Nadhim M. Faleh,Mamoon A.A. Al-Jaafari and Raad M. Fenjan:Mustansiriyah University, Collage of Engineering, Mechanical Engineering Department, Baghdad, Iraq Abeer K. Abd:Ministry of Transportation, Iraq | ||