Accession Number : AD0660213

Title :   APPLICATIONS OF THEORIES OF GENERALIZED COSSERAT CONTINUA TO THE DYNAMICS OF COMPOSITE MATERIALS.

Descriptive Note : Technical rept.,

Corporate Author : NORTHWESTERN UNIV EVANSTON ILL STRUCTURAL MECHANICS LAB

Personal Author(s) : Herrmann,George ; Achenbach,Jan D.

Report Date : OCT 1967

Pagination or Media Count : 21

Abstract : It is shown that the Cosserat continuum and the theory of elasticity with micro-structure can be interpreted as analytical models describing the dynamic behavior of a composite material. The nonclassical material constants are simply functions of the geometry and the classical constants of the two materials constituting the composite. The study of wave propagation in a laminated composite reveals that a more complex microstructure needs to be introduced in a continuum in order to describe adequately the dispersive character of (essentially) longitudinal waves. (Author)

Descriptors :   (*COMPOSITE MATERIALS, CONTINUUM MECHANICS), (*ELASTIC PROPERTIES, COMPOSITE MATERIALS), DYNAMICS, STRAIN(MECHANICS), STRESSES, POTENTIAL ENERGY, EQUATIONS OF MOTION, DEFORMATION, MECHANICAL WAVES

Subject Categories : Laminates and Composite Materials
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE