Accession Number : AD0674769

Title :   INFLUENCE OF END CONSTRAINT IN THE TESTING OF ANISOTROPIC BODIES.

Descriptive Note : Rept. for Aug-Dec 67,

Corporate Author : AIR FORCE MATERIALS LAB WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Pagano,N. J. ; Halpin,J. C.

Report Date : JUN 1968

Pagination or Media Count : 31

Abstract : One of the most elementary concepts in elasticity theory is that of a uniform state of stress. Producing such a state of stress in the laboratory, however, is not a trivial task. A common experiment in composite mechanics -- the tension test of off-angle composites -- is discussed in this report and the influence of end constraint on the uniform stress field is investigated. Analytical and experimental evidence is presented to show the serious effects caused by conventional clamping devices. (Author)

Descriptors :   (*COMPOSITE MATERIALS, ELASTIC PROPERTIES), STRESSES, STRAIN(MECHANICS), ANISOTROPY, BENDING, TENSILE PROPERTIES, RUBBER, CLAMPS, DEFORMATION, BOUNDARY VALUE PROBLEMS, TEST METHODS

Subject Categories : Laminates and Composite Materials
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE