Accession Number : AD0693130

Title :   UNIAXIAL-STRAIN WAVE-PROPAGATION EXPERIMENTS USING SHOCK-TUBE LOADING.

Descriptive Note : Technical rept. Aug 67-May 69,

Corporate Author : AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Personal Author(s) : Commerford,Gerald L. ; Whittier,James S.

Report Date : 18 AUG 1969

Pagination or Media Count : 30

Abstract : A technique for studying uniaxial strain pulse propagation is discussed. The face of a disk-shaped sample is loaded uniformly with step-function pressure by reflection of a gasdynamic shock wave. The effect of propagation through the sample on the step pulse is observed by use of measurements of the velocity of the sample's rear surface made with a capacitive transducer. Data are presented for several materials. The technique is advantageous for study of pulse dispersion mechanisms such as bulk viscoelasticity and heterogeneous microstructure. (Author)

Descriptors :   (*NONDESTRUCTIVE TESTING, MATERIALS), (*SHOCK TUBES, AERODYNAMIC LOADING), STRAIN(MECHANICS), SHOCK WAVES, PULSES, STRAIN GAGES, TRANSDUCERS, TEST METHODS, VISCOELASTICITY, MICROSTRUCTURE, RESPONSE, RECORDING SYSTEMS, SILICON DIOXIDE, MAGNESIUM, COMPOSITE MATERIALS, LAMINATES, STYRENE PLASTICS

Subject Categories : Test Facilities, Equipment and Methods
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE