Accession Number : AD0778463

Title :   Multi-Control-Volume Approach to Elastic and Plastic Waves in Layered Composites.

Descriptive Note : Final rept. Jun 72-Oct 73,

Corporate Author : DREXEL UNIV PHILADELPHIA PA WAVE PROPAGATION RESEARCH CENTER

Personal Author(s) : Tsou,F. K. ; Chou,Pei Chi ; Singh,I.

Report Date : FEB 1974

Pagination or Media Count : 82

Abstract : A multi-control-volume method is developed to predict the wave velocities and stresses in the elastic and plastic regions of layered composities. From the method, the wave velocities and stresses may be calculated from the constitutive relation of its constituents. The interfacial shearing force may then be computed. Two composites Boron/Aluminum and Graphite/C-7 Epoxy have been used for sample calculations. The calculated wave velocities will differ from a constant as the impact velocity becomes large. (Author-PL)

Descriptors :   *Fiber reinforced composites, *Elastic properties, *Plastic deformation, Boron, Aluminum, Carbon fibers, Reinforced plastics, Stress strain relations

Subject Categories : Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE