Accession Number : AD0713593

Title :   A FINITE ELEMENT STRESS ANALYSIS OF A CRACK IN A BI-MATERIAL PLATE,

Corporate Author : ILLINOIS UNIV URBANA DEPT OF THEORETICAL AND APPLIED MECHANICS

Personal Author(s) : Leverenz,R. K.

Report Date : JUN 1970

Pagination or Media Count : 64

Abstract : A stress analysis is obtained for the problem of a crack in one material of a bi-material plate located perpendicular to the material interface. A numerical solution is obtained using finite element techniques to obtain the force displacement relationships. Knowing this, a work integral method is used to determine the stress intensity factors for the crack. Since the work integral is independent of path, the path of integration can be chosen far enough away from the crack tip to avoid the complications of the crack tip singularity. The problem is studied for a number of cases where the crack length to plate width ratio, distance from crack tip to material interface, and the ratio of material constants were varied as parameters. (Author)

Descriptors :   (*CRACK PROPAGATION, COMPOSITE MATERIALS), (*CRACKS, *STRESSES), FRACTURE(MECHANICS), LOADS(FORCES), METAL PLATES, STRUCTURAL PROPERTIES, NUMERICAL ANALYSIS, COMPUTER PROGRAMS, THESES

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE