Accession Number : ADA305422

Title :   Development of Procedures for Calculating Stiffness and Damping Properties of Elastomers in Engineering Applications. Part 3: The Effects of Temperature, Dissipation Level and Geometry.

Descriptive Note : Final rept. Jan 74-Jul 75,

Corporate Author : MECHANICAL TECHNOLOGY INC LATHAM NY

Personal Author(s) : Smalley, Anthony J. ; Tessarzik, Juergen M.

PDF Url : ADA305422

Report Date : NOV 1975

Pagination or Media Count : 224

Abstract : This report presents the results of a program of analysis and test to investigate the effects of temperature, dissipation level and geometry on the dynamic behavior of elastomer elements. The report presents, first, a review of force displacement relationships in elastomer elements and the effects of frequency, geometry and temperature upon these relationships. Based on this review, methods of reducing stiffness and damping data for shear and compression test elements to material properties (storage and loss moduli) and empirical geometry factors are developed and tested using previously generated experimental data. A prediction method which accounts for large amplitudes of deformation is developed on the assumption that their effect is to increase temperature through the elastomers, thereby modifying the local material properties. Various simple methods of predicting the radial stiffness of ring cartridge elements are developed and compared. (MM)

Descriptors :   *ELASTOMERS, *CARTRIDGES, COMPRESSION, VIBRATION, DEFORMATION, STIFFNESS, DISPLACEMENT, DAMPING, DISSIPATION, TEMPERATURE GRADIENTS, SHEAR STRESSES, THERMAL CONDUCTIVITY, RINGS, POLYBUTADIENE.

Subject Categories : Elastomers and Rubber
      Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE