Accession Number : AD0629734

Title :   TWIST MODULUS FOR A 6-CONSTANT CENTRO-SYMMETRIC CUBIC CRYSTAL,

Corporate Author : RENSSELAER POLYTECHNIC INST TROY N Y DEPT OF MECHANICS

Personal Author(s) : Hoppmann,W. H. , II ; Kunukasseril,V. X.

Report Date : FEB 1966

Pagination or Media Count : 25

Abstract : A study is presented of the statical deformation of a mechanical model of a supposed 6-constant centro-symmetric cubic crystal which exhibits the phenomenon of couple stresses. A description of the design and construction of the model and the loading apparatus is given. The related theory of deformation of such a crystal is summarized and used in order to determine the elastic constants. The specific constitutive equations are shown. Experimental results are given for the model loaded on its boundary in a simple manner. The solutions of the equations of equilibrium satisfying the given boundary conditions are obtained and used for the determination of the constants. The complete set of numerical values of the constants are tabulated and discussed. One of the principal aims of the research was the determination of the twist modulus. (Author)

Descriptors :   (*CRYSTALS, ELASTIC PROPERTIES), MODELS(SIMULATIONS), SYMMETRY(CRYSTALLOGRAPHY), DEFORMATION, SHEAR STRESSES, ISOTROPISM

Subject Categories : Crystallography
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE