Accession Number : AD0775089

Title :   Application of the Strain-Energy-Density Theory to Fundamental Fracture Problems.

Descriptive Note : Technical rept.,

Corporate Author : LEHIGH UNIV BETHLEHEM PA INST OF FRACTURE AND SOLID MECHANICS

Personal Author(s) : Sih,G. C.

Report Date : NOV 1973

Pagination or Media Count : 20

Abstract : This study describes some essential features of the fracture problem associated with the analytical modeling of a crack. Topics chosen for investigation are: (1) slanted crack, (2) crack tip notch effect, (3) MATERIAL NONHOMOGENEITY, AND (4) fracture in three dimensions. A brief discussion is also given to crack propagation in the presence of plastic deformation. All the analyses are based on the strain-energy-density factor, S, concept which assumes fracture to occur in an element ahead of the crack when S REACHES ITS CRITICAL VALUE, Sc. (Author-PL)

Descriptors :   *Fracture(Mechanics), *Strain(Mechanics), *Composite materials, Crack propagation, Elastic properties, Plastic deformation, Numerical analysis

Subject Categories : Laminates and Composite Materials
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE