Accession Number : AD0469553

Title :   THE EFFECTS OF SHEAR ON STRESS WAVE PROPAGATION.

Descriptive Note : Final rept., 1 Aug 62-31 Dec 64,

Corporate Author : WASHINGTON UNIV SEATTLE DEPT OF AERONAUTICS AND ASTRONAUTICS

Personal Author(s) : Fyfe,I. M. ; Ensminger,R. R. ; Swift,R.

Report Date : AUG 1965

Pagination or Media Count : 95

Abstract : The propagation of high-intensity stress waves in cylindrical geometries is considered as a means to obtain a measure of the shear stress effects on material behavior. A discontinuity theory is applied to show that when Hugoniots are used as equations of state, the Hugoniots must necessarily coincide for all geometric configurations. It is also shown that the simple equations of state of this type may accurately predict particular information that does not depend on the shear properties of the material but that little evidence exists to permit its use in a general fashion for dynamic problems. A criterion is proposed for hydrodynamic behavior, and the parameters controlling this behavior are given. A technique to check the validity of proposed equations of state using flash radiography is also suggested. (Author)

Descriptors :   (*SHEAR STRESSES, DETERMINATION), (*STRESSES, PROPAGATION), (*CYLINDRICAL BODIES, SHEAR STRESSES), (*MECHANICAL WAVES, SHEAR STRESSES), THEORY, WAVE PROPAGATION, EXPLODING WIRES, LOADS(FORCES), EQUATIONS OF STATE, GEOMETRIC FORMS, SHELLS(STRUCTURAL FORMS), MATRICES(MATHEMATICS), SHOCK WAVES, ELASTIC PROPERTIES, ALUMINUM, POLYETHYLENE PLASTICS, MEASUREMENT

Distribution Statement : APPROVED FOR PUBLIC RELEASE