TY - JOUR
T1 - Thermo-hygro-mechanical bending and vibration of functionally graded material microbeams with microporosity defect
AU - Wang, Yan Qing
AU - Zhao, Hu Long
AU - Yang, T. H.
AU - Zu, Jean W.
N1 - Publisher Copyright:
© 2019, © 2019 Taylor & Francis Group, LLC.
PY - 2019/7/3
Y1 - 2019/7/3
N2 - In this study, the thermo-hygro-mechanical bending and vibration of functionally graded material (FGM) microbeams with microporosity defect are investigated. The mathematical model of the system is developed by using the sinusoidal beam theory and the modified couple stress theory. Based on Hamilton’s principle, the governing equations and boundary conditions of imperfect FGM microbeams are derived. Then, Navier’s method is utilized to calculate the deflections and natural frequencies of the system. Analytical results are presented to illustrate the effects of the microporosity volume fraction, the microporosity distribution type, the power-law index, the temperature and the moisture on the static bending and free vibration of imperfect FGM microbeams.
AB - In this study, the thermo-hygro-mechanical bending and vibration of functionally graded material (FGM) microbeams with microporosity defect are investigated. The mathematical model of the system is developed by using the sinusoidal beam theory and the modified couple stress theory. Based on Hamilton’s principle, the governing equations and boundary conditions of imperfect FGM microbeams are derived. Then, Navier’s method is utilized to calculate the deflections and natural frequencies of the system. Analytical results are presented to illustrate the effects of the microporosity volume fraction, the microporosity distribution type, the power-law index, the temperature and the moisture on the static bending and free vibration of imperfect FGM microbeams.
KW - Functionally graded material microbeam
KW - bending
KW - microporosity
KW - thermo-hygro-mechanical loading
KW - vibration
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U2 - 10.1080/01495739.2019.1587325
DO - 10.1080/01495739.2019.1587325
M3 - Article
AN - SCOPUS:85063682111
SN - 0149-5739
VL - 42
SP - 815
EP - 834
JO - Journal of Thermal Stresses
JF - Journal of Thermal Stresses
IS - 7
ER -