Accession Number : AD0752257

Title :   Development of Stress-Strain Models for Energy-Storing Systems,

Corporate Author : BATTELLE COLUMBUS LABS OHIO

Personal Author(s) : McCallum,John ; Thomas,Ralph E. ; Roeger,Earl A. , Jr

Report Date : AUG 1972

Pagination or Media Count : 125

Abstract : The report is an attempt to arrive at a useful stress-strain model for batteries. The first objective is to formulate and justify the meaning of stress and strain and similar concepts related to the performance and aging of batteries. A second objective is to formulate mathematical relationships for various combinations of springs, dashpots, and their analogs. A third objective is to associate specific processes and components in a battery with one or more models growing out of results from Objectives 1 and 2. In attempting to reach the first objective it seemed necessary to consider the general meaning of stress, strain, force, displacement, strain-rate, and acceleration, for individual forms of energy. The report expands on the generalized meaning of stress and strain for six forms of energy: (1) mechanical energy, (2) surface energy, (3) volume expansion energy, (4) electrical energy, (5) thermal energy, and (6) chemical energy.

Descriptors :   (*STORAGE BATTERIES, *ACCELERATED TESTING), (*ENERGY CONVERSION, THEORY), STRESSES, STRAIN(MECHANICS), STORAGE, INTENSITY, ANALOG SYSTEMS

Subject Categories : Non-electrical Energy Conversion
      Electrochemical Energy Storage

Distribution Statement : APPROVED FOR PUBLIC RELEASE