Open AccessSome theoretical considerations on the dynamic properties of plastics
Author(s) -
N F Astbury
Publication year - 1949
Publication title -
proceedings of the royal society of london a mathematical and physical sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.814
H-Index - 135
eISSN - 2053-9169
pISSN - 0080-4630
DOI - 10.1098/rspa.1949.0016
Subject(s) - rayleigh scattering , materials science , similarity (geometry) , sound transmission class , point (geometry) , dielectric , composite material , absorption (acoustics) , acoustics , mathematics , physics , computer science , optics , geometry , optoelectronics , artificial intelligence , image (mathematics)
There is a marked similarity between the mechanical behaviour of plastics and the electric behaviour of certain dielectrics. This provides a starting-point for the derivation of a mechanical stress-strain relationship for plastic materials, from which expressions are deduced for the velocity of sound in, and for the transmission and reflexion of sound by, plastic plates. The effect of absorption on departures from Rayleigh’s theory is indicated, and limited experimental data are reported.
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