Temperature distribution effects on buckling behavior of smart heterogeneous nanosize plates based on nonlocal four-variable refined plate theory  

作　　者：Farzad Ebrahimi Mohammad Reza Barati 

机构地区：[1]Department of Mechanical Engineering,Faculty of Engineering,Imam Khomeini International University,Qazvin,Iran

出　　处：《International Journal of Smart and Nano Materials》2016年第3期119-143,共25页国际智能和纳米材料杂志（英文）

摘　　要：This work presents a theoretical study for thermo-mechanical buckling of size-dependent magneto-electro-thermo-elastic func-tionally graded(METE-FG)nanoplates in thermal environments based on a refined trigonometric plate theory.Temperature field has uniform,linear,and nonlinear distributions across the thick-ness.Nonlinear thermal loadings are considered as heat conduc-tion(HC)and sinusoidal temperature rise(STR).A power law function is applied to govern the gradation of material properties through the nanoplate thickness.Considering coupling impacts between magneto,electro,thermo-mechanical loadings,the equa-tions of motion,and distribution of magneto-electrical field across the thickness direction of the METE-FG nanoplate are derived.The exact solutions for critical buckling temperatures of METE-FG nanoplates are introduced implementing Navier’s method.Moreover,the accuracy of the present formulation is examined by comparing the obtained results with published ones.Furthermore,the effects played by the magneto-electrical field,various temperature rises,nonlocality,power law index,side-to-thickness ratio,and aspect ratio on the critical buckling tempera-ture response are all investigated and reported.

关 键 词：METE-FG nanoplate thermal buckling four-variable refined plate theory nonlocal elasticity 

分 类 号：O17[理学—数学]