Steel and Composite Structures
Volume 50, Number 1, 2024, pages 15-24
DOI: 10.12989/scs.2024.50.1.015
A review on dynamic characteristics of nonlocal porous FG nanobeams under moving loads
Abdulaziz Saud Khider, Ali Aalsaud, Nadhim M. Faleh, Abeer K. Abd, Mamoon A.A. Al-Jaafari and Raad M. Fenjan
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