چکیده مقاله
The main objective of this work is to extend the use of the Element Free Galerkin EFG method for static buckling analysis of column with surface bonded piezoelectric layers The piezoelectric layers are implemented in order to increase the buckling capacity of the column The most significant advantageous of the meshfree method is that it requires only nodes, a description of internal and external boundaries of the model and also no element connectivity is needed However, similar to any discretization method, acceptable solutions can only be obtained for a sufficiently refined discretization The formulation is derived from the variational principle and solved numerically and the piezoelectric stiffness is taken into account in the model A constant gain feedback control algorithm is used and increases Euler’s critical buckling load during piezoelectric actuation The results obtained from the meshfree buckling analysis of an axial compressed simply supported, fixed fixed and fixed pinned columns show that active control can be used to stabilize compressive members against buckling, allowing them to be loaded well in excess of critical buckling load of bare coulmns
کلیدواژهها
نویسندگان
N. Fallah
Department of Civil Engineering, University of Guilan, Rasht, P O Box ۳۷۵۶, Iran
n haddadizadeh
N. Fallah Department of Civil Engineering, University of Guilan, Rasht, P O Box ۳۷۵۶, Iranm ebrahimnejad
m ebrahimnejad
N. Fallah Department of Civil Engineering, University of Guilan, Rasht, P O Box ۳۷۵۶, Irann haddadizadeh
شیوه ارجاع
Fallah, N. and haddadizadeh, n and ebrahimnejad, m,1391,Stability Analysis of Columns with Surface Bonded Piezoelectric Layers Using Meshfree Method,9th International Congress on Civil Engineering,Isfahan
ارائهشده در
مجموعه مقالات نهمین کنگره بین الملی مهندسی عمران19 اردیبهشت 1391 · اصفهان