Accession Number : AD0669062

Title :   WAVE PROPAGATION IN MATERIALS HAVING FREQUENCY DEPENDENT RHEOLOGICAL PROPERTIES.

Descriptive Note : Physical sciences research papers no. 354,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s) : Thomson,Ker C.

Report Date : MAR 1968

Pagination or Media Count : 42

Abstract : A combined theoretical and model study of the basic physics of wave propagation, as applied to problems in mechanical radiation in the real earth, was conducted. During the support period covered by the report the effort was directed along three primary lines: (a) improvement and augmentation of the model laboratory, (b) the development of seismic model sources capable of delivering mechanical pulses with broad frequency spectra, and (c) an investigation of the dynamic rheological properties of a model material to be used in the study of wave propagation in an elastic materials. (Author)

Descriptors :   (*UNDERGROUND STRUCTURES, SHOCK WAVES), (*SEISMIC WAVES, PROPAGATION), RHEOLOGY, MODULUS OF ELASTICITY, VISCOELASTICITY, EARTH MODELS, INSTRUMENTATION, TEST FACILITIES, TRANSDUCERS, SOIL MECHANICS, PIEZOELECTRIC CRYSTALS, AIR FORCE RESEARCH

Subject Categories : Seismology
      Structural Engineering and Building Technology
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE