Accession Number : AD0778098

Title :   Use of Finite Element Analysis in Fracture Mechanics,

Corporate Author : AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Personal Author(s) : Atchley,Charles E. ; Raymond,Louis

Report Date : 05 APR 1974

Pagination or Media Count : 68

Abstract : Many problems in fracture mechanics are not readily amenable to analytical treatment. Stress distributions and stress intensity factors cannot always be calculated easily for a given structural geometry and loading condition. However, finite element methods offer an accurate, versatile, and conceptually simple means by which a given structure can be analyzed. They allow a general application of classical crack propagation analysis whereby the necessary estimates of the stress intensity factor may be calculated. The report presents the development of a general finite element method commonly used in structural mechanics and several finite element approaches employed specifically in fracture mechanics for computing stress and displacement functions, and stress intensity factors for a cracked structure. (Modified author abstract)

Descriptors :   *Fracture(Mechanics), Stresses, Structural properties, Matrices(Mathematics), Computer programming

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE