FREE VIBRATIONS OF FUNCTIONALLY GRADED P
โ
W.Q CHEN; L.Z WANG; Y LU
๐
Article
๐
2002
๐
Elsevier Science
๐
English
โ 164 KB
By introducing displacement functions as well as stress functions, two independent state equations with variable coe$cients are established from the three-dimensional equations of a radially inhomogeneous spherically isotropic piezoelastic medium. By virtue of the laminated approximation method, the