Buckling And Vibration Analysis Of Aixial Graded Oneycomb Sandwich Palte

Honeycomb sandwich plate is widely applied in aviation,automobile,ship and other fields,and al-so emerges in the fields of construction,package and transportation,as well as the sports products,which is the functional material with the excellent performance,it has wide application prospect in the future.This article brings the graded honey comb into conventional honeycomb,on the condition that the overall size and quality is the same as those of the conventional honeycomb,cell spread honeycomb with continuous changes along the in-plane specific coordinate direction is structured by continuous changes of the size of adjacent honeycomb cell,and then,the honeycomb sandwich plate structure with the continuous in-plane relative density and gradient is formed.The vibration and buckling governing equation of axial density gradient honeycomb sandwich plate is derived by the application of Hamilton principle and principle of minimum potential energy.With the consideration of the geometrical features of honeycomb core,3D solid model is set up with the use of CATIA,geometry-cleanup and grid meshing are done by pre-processing software,modeling and simulation are done by FEM software ABAQUS,on the basis of test data,the reasonability of the method is verified.The eigenvalue-buckling analysis and modeling analysis of axial density gradient honeycomb sandwich plate of hexagon and rectangle is done by us ing FEM simulation.The influence of different panel thickness,honeycomb cell thickness and honeycomb sandwich height to the stability and natural frequency of sandwich plate is researched,meanwhile,the influence of gradient change of these parameters to stability and natural frequency of honeycomb density graded sandwich plate is also researched.