A finite element model is described to study interlaminar stresses wit
hin polymer composite laminated materials. This model is based upon a
global-local model proposed by Pagano and Soni in 1983. The developmen
t of solution procedures includes an out-of-core memory solving techni
que. The numerical results generated for simple plate problems with an
d without holes in the center under uniaxial loading are reported. Com
ments regarding the finite-element mesh-size, numerical stability, pro
blem size and sensitivity of results to substructuring of the laminate
into global and local regions have also been discussed.