On the theory of stability of laminated composites

The stability loss problem for laminated composites is considered for the case when the layers are infinite, have constant thickness and parallel interfaces. It is assumed that composites of periodic structure are compressed along layers and in perpendicular direction. The investigations are realized for spatial problem using the three-dimensional linearized theory of deformable bodies stability in general case of elastic and elastoplastic compressible and incompressible, isotropic and orthotropic bodies under finite and small (two variants of theory) precritical strains. Notation on the plane of the points with equal phases of stability loss form along layers is introduced. Method of problem solution under consideration is proposed when above mentioned planes occupy arbitrary position relatively direction of layers.