
Accession Number : AD0739857
Title : A New Model for the Dynamic Behavior of Elastomeric Materials.
Descriptive Note : Technical rept. Jun 70Sep 71,
Corporate Author : AIR FORCE MATERIALS LAB WRIGHTPATTERSON AFB OHIO
Personal Author(s) : Edwards,J. L. ; Hicks,D. R.
Report Date : DEC 1971
Pagination or Media Count : 47
Abstract : A mathematical model describing the dynamic behavior of rubber or elastomeric materials was developed. It is based on Flory's concept of the rotational isomeric state model of polymer chains. With a unit step strain applied to the material, each polymer chain is assumed to go from an unrelaxed initial configuration to a fully relaxed equilibrium state at a rate described by a nonlinear firstorder differential equation. The differential equation is derived by assuming that the relaxation rate is proportional to a probability function, namely, the probability that the elastic and thermal energy present in the chain is greater than or equal to a critical value. (Author)
Descriptors : (*ELASTOMERS, MATHEMATICAL MODELS), STRESSES, CHEMICAL BONDS, NONLINEAR DIFFERENTIAL EQUATIONS, COMPUTER PROGRAMS, DYNAMICS, DAMPING
Subject Categories : Elastomers and Rubber
Distribution Statement : APPROVED FOR PUBLIC RELEASE