Premium
Finite element buckling analysis of homogeneous and sandwich plates
Author(s) -
Cook Robert D.
Publication year - 1975
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620090104
Subject(s) - buckling , finite element method , structural engineering , stiffness , transverse shear , homogeneous , fortran , degrees of freedom (physics and chemistry) , materials science , yield (engineering) , stress (linguistics) , deformation (meteorology) , convergence (economics) , subroutine , mathematics , geometry , engineering , composite material , computer science , physics , linguistics , philosophy , combinatorics , quantum mechanics , economics , economic growth , operating system
Finite element buckling analyses of plates are performed by means of quardrilateral elements having 12 degrees‐of‐freedom. It is found that if the plate is capable of appreciable transverse shear deformation, initial‐stress stiffness matrices that represent the lateral dispalcement by cubic polynomials do not yield convergence to correct results. An initial‐stress stiffness that works satisfactorily for both homogeneous and sandwich plates is formulated. A Fortran listing of the associated subroutine is provided.