Accession Number : AD0771491

Title :   Fracture Statistics of Isotropic Brittle Materials with Surface Flaws.

Descriptive Note : Rept. for Aug-Sep 73,

Corporate Author : AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Personal Author(s) : Batdorf,Samuel B.

Report Date : 03 DEC 1973

Pagination or Media Count : 27

Abstract : A weakest link theory for macroscopically homogeneous, isotropic, brittle materials, the surfaces of which contain randomly oriented microcracks uniformly distributed with respect to location, is developed under the assumption that fracture depends only on the tensile stress normal to a crack line. The function representing the number of cracks failing at each value of normal stress is very simply determined from fracture statistics for equibiaxial tension. This function is used without additional assumptions to determine the probability of fracture under arbitrary stress conditions. The theory is shown to be in better agreement with extensive experimental data on pyrex cylinders than previously available theories. (Author)

Descriptors :   *Fracture(Mechanics), *Brittleness, Statistical analysis, Cracks, Stresses, Surfaces

Subject Categories : Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE