Accession Number : AD0643902

Title :   CERTAIN PERSPECTIVES FOR THE USE OF THE PULSE METHOD OF DETERMINING THE ELASTIC CONSTANTS,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Mukhin,L. M.

Report Date : 27 SEP 1966

Pagination or Media Count : 8

Abstract : The application of the pulse method of determining the elastic constants to conditions when the investigated sample is in the active zone of the apparatus makes it possible to observe the kinetics of the effect of radiation on different material. The pulse method has significant advantages over resonance methods that use standing waves in samples: (1) The possibility of accurate temperature control on the working part of the sample through thermocouples. (2) Simultaneous determination of all the elastic constants on the same sample. (3) The possibility of removing the transducers from the active zone of the apparatus. The accuracy of this method can be very high, since it basically depends upon the accuracy of determining velocity. An experiment was conducted on graphite and copper samples. During the experiment certain changes were observed in the elastic properties of samples under the effect of radiation. Thus, the possibility of investigating the kinetics of the effect of irradiation on the elastic properties of materials with the aid of the pulse method was shown.

Descriptors :   (*ELASTIC PROPERTIES, *TEST METHODS), PULSES, TEMPERATURE, DAMAGE, RADIATION EFFECTS, DETERMINATION, PIEZOELECTRIC TRANSDUCERS, SOLIDS, USSR, COPPER, GRAPHITE

Subject Categories : Test Facilities, Equipment and Methods
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE