Accession Number : ADA310385

Title :   Energy in Elastic Fiber Embedded in Elastic Matrix Containing Incident SH Wave.

Descriptive Note : Final contractor rept.,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Williams, James H., Jr. ; Nagem, Raymond J.

PDF Url : ADA310385

Report Date : JAN 1989

Pagination or Media Count : 17

Abstract : A single elastic fiber embedded in an infinite elastic matrix is considered. An incident plane SH wave is assumed in the infinite matrix, and an expression is derived for the total energy in the fiber due to the incident SH wave. A nondimensional form of the fiber energy is plotted as a function of the nondimensional wavenumber of the SH wave. It is shown that the fiber energy attains maximum values at specific values of the wavenumber of the incident wave. The results obtained here are interpreted in the context of phenomena observed in acousto-ultrasonic experiments on fiber reinforced composite materials.

Descriptors :   *FIBER REINFORCED COMPOSITES, *ELASTIC PROPERTIES, FIBERS, NONDESTRUCTIVE TESTING, MATRIX MATERIALS, ULTRASONIC TESTS.

Subject Categories : Mechanics
      Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE