4285

4056

كارشناسي ارشد

سازه

اصفهان : دانشگاه صنعتي اصفهان، دانشكده عمران

1387

دوازده، 108، [II] ص. : جدول، نمودار

ص. ع به: فارسي و انگليسي

مهندسي عمران

ID4056

به فارسي و انگليسي: قابل رويت در نسخه ديجيتال

Abstract This investigation is concerned with the determination of local buckling of multi steppedrectangular plates based on the classical thin Kirchhoff plate theory Due to complexityof the closed form solutions for buckling analysis of stepped plates with different boundaryconditions numerical methods were more recommended Because of restrictions for two finite strip methods Classical method and Complexmethod the spline finite strip method is used to solve the buckling problem In spline finitestrip method the longitudinal B3 spline expressions combined with conventional transverseshape functions are used as the displacement functions The finite strip method iscomputationally more efficient than the finite element method and in this study by usingspline as longitudinal functions the abrupt longitudinal changes in thickness of plates weremodeled and evaluated Local buckling coefficients are presented for plates having one and two step thicknessvariations which are useful to economize on the plate materials or to lighten the plates especially when used in wings for high speed high performance aircrafts

مجتبي ازهري

محمد مهدي سعادت پور

علي محمد مومني، مجتبي محزون