Accession Number : AD0616747

Title :   WAVES IN MATERIALS WITH MEMORY. IV. THERMODYNAMICS AND THE VELOCITY OF GENERAL ACCELERATION WAVES.

Descriptive Note : Technical rept.,

Corporate Author : BROWN UNIV PROVIDENCE R I DIV OF APPLIED MATHEMATICS

Personal Author(s) : Coleman,Bernard D. ; Gurtin,Morton E.

Report Date : 08 MAR 1965

Pagination or Media Count : 57

Abstract : Wave propagation in general materials with memory is discussed. It is shown that the theory of acceleration waves in such materials can be based on the notion of an instantaneous acoustic tensor. It is proven that the Second Law of Thermodynamics implies the symmetry of this acoustic tensor.

Descriptors :   (*MECHANICAL WAVES, PROPAGATION), (*THERMODYNAMICS, MATERIALS), (*HYSTERESIS, MECHANICAL WAVES), (*TENSOR ANALYSIS, MECHANICAL WAVES), VISCOELASTICITY, ACCELERATION, STRESSES, ELASTIC PROPERTIES, ENTROPY, THERMAL CONDUCTIVITY, FIELD THEORY

Distribution Statement : APPROVED FOR PUBLIC RELEASE