Magnetic field effects on nonlocal wave dispersion characteristics of size-dependent nanobeams

被引：11
作者：
Ebrahimi, Farzad [1 ]
Barati, Mohammad Reza [1 ]
机构：
[1] Imam Khomeini Int Univ, Fac Engn, Dept Mech Engn, Qazvin, Iran
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2017年 / 123卷 / 01期
关键词：
NONLINEAR VIBRATION ANALYSIS; FG NANOBEAMS; BUCKLING ANALYSIS; DYNAMIC-ANALYSIS; BEAM THEORY; PROPAGATION; BEHAVIOR; MODELS; PLATE;
D O I：
10.1007/s00339-016-0646-y
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, wave propagation analysis of functionally graded size-dependent nanobeams embedded in elastic foundation exposed to a longitudinal magnetic field is conducted based on nonlocal elasticity theory. Material properties of nanobeam change gradually according to the sigmoid function. Applying an analytical solution, the acoustical and optical dispersion relations are explored for various wave number, nonlocality parameter, material composition, elastic foundation constants and magnetic field intensity. It is found that frequency and phase velocity of waves propagating in S-FGM nanobeam are significantly affected by these parameters. Also the presence of cutoff and escape frequencies in wave propagation analysis of embedded S-FGM nanobeams is investigated.
引用
收藏
页数：11
相关论文
共 47 条
[1]   Effect of micromechanical models on structural responses of functionally graded plates [J].
Akbarzadeh, A. H. ;
Abedini, A. ;
Chen, Z. T. .
COMPOSITE STRUCTURES, 2015, 119 :598-609
[2]   Size-dependent longitudinal and transverse wave propagation in embedded nanotubes with consideration of surface effects [J].
Assadi, Abbas ;
Farshi, Behrooz .
ACTA MECHANICA, 2011, 222 (1-2) :27-39
[3]   Longitudinal wave propagation in multiwalled carbon nanotubes [J].
Aydogdu, Metin .
COMPOSITE STRUCTURES, 2014, 107 :578-584
[4]   BUCKLING ANALYSIS OF SMART SIZE-DEPENDENT HIGHER ORDER MAGNETO-ELECTRO-THERMO-ELASTIC FUNCTIONALLY GRADED NANOSIZE BEAMS [J].
Ebrahimi, F. ;
Barati, M. R. .
JOURNAL OF MECHANICS, 2017, 33 (01) :23-33
[5]   Nonlinear vibration of smart circular functionally graded plates coupled with piezoelectric layers [J].
Ebrahimi F. ;
Rastgoo A. .
International Journal of Mechanics and Materials in Design, 2009, 5 (02) :157-165
[6]   Small-scale effects on hygro-thermo-mechanical vibration of temperature-dependent nonhomogeneous nanoscale beams [J].
Ebrahimi, Farzad ;
Barati, Mohammad Reza .
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES, 2017, 24 (11) :924-936
[7]   Buckling analysis of piezoelectrically actuated smart nanoscale plates subjected to magnetic field [J].
Ebrahimi, Farzad ;
Barati, Mohammad Reza .
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES, 2017, 28 (11) :1472-1490
[8]   Temperature distribution effects on buckling behavior of smart heterogeneous nanosize plates based on nonlocal four-variable refined plate theory [J].
Ebrahimi, Farzad ;
Barati, Mohammad Reza .
INTERNATIONAL JOURNAL OF SMART AND NANO MATERIALS, 2016, 7 (03) :119-143
[9]   Hygrothermal effects on vibration characteristics of viscoelastic FG nanobeams based on nonlocal strain gradient theory [J].
Ebrahimi, Farzad ;
Barati, Mohammad Reza .
COMPOSITE STRUCTURES, 2017, 159 :433-444
[10]   A nonlocal strain gradient refined beam model for buckling analysis of size-dependent shear-deformable curved FG nanobeams [J].
Ebrahimi, Farzad ;
Barati, Mohammad Reza .
COMPOSITE STRUCTURES, 2017, 159 :174-182
12345