TY - JOUR
ID - 3514
TI - Magneto-piezo-mechanical Stresses Analysis of a Porous FGPM Rotating Non-uniform Thickness Disc with Variable Angular Velocity
JO - Journal of Stress Analysis
JA - JRSTAN
LA - en
SN - 2588-2597
AU - Saadatfar, M.
AU - Zarandi, M.H.
AD - Department of Mechanical Engineering, University of Qom, Qom, Iran.
Y1 - 2020
PY - 2020
VL - 5
IS - 1
SP - 31
EP - 47
KW - Rotating disc
KW - Variable thickness
KW - Variable angular speed
KW - porosity
KW - FGPM
KW - Magnetic field
DO - 10.22084/jrstan.2020.21129.1133
N2 - The mechanical behavior of a fluid-saturated functionally graded porous piezoelectric material (FGPPM) rotating disc with variable angular velocity and thickness placed in a constant magnetic field was investigated. Due to variable angular velocity, the disc was subjected to Lorentz force in two directions: radial and circumferential. It was assumed the disc is power-law functionally graded in the radial direction. The disc is uniformly porous and its thickness varies as a function of radius. First, three coupled governing partial differential equations were converted to ordinary differential equations using the separation of variable technique. Then, equations were solved using Runge-Kutta and shooting methods for the case of fixed-free boundary condition. The effect of variable angular velocity, thickness profile, inhomogeneity index, porosity and magnetic field was investigated. The results demonstrate that considering angular acceleration for the disc has a considerable effect on the Lorentz force resulted by the magnetic field. Besides, the angular velocity constant has a significant effect on the stresses and displacements in the presence of the magnetic field.
UR - https://jrstan.basu.ac.ir/article_3514.html
L1 - https://jrstan.basu.ac.ir/article_3514_30ddae5219349f0a1e1b3ae17a20f29b.pdf
ER -