Accession Number : ADA185965

Title :   J-Estimation Procedure Based on Moire Interferometry Data.

Descriptive Note : Technical rept.,

Corporate Author : WASHINGTON UNIV SEATTLE DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Kang, B S ; Kobayashi, A S

PDF Url : ADA185965

Report Date : Aug 1987

Pagination or Media Count : 30

Abstract : The J-integral, which has been heralded by many as a stable crack growth and ductile fracture criteria and which in its linearly elastic limit becomes the strain energy release rate, derives its popularity in being a path-independent integral. The purpose of this paper is to review an experimental procedure, which was developed by the authors, using more interferometry, for estimating the J-integral values along contours inside fracture specimens and to present some resistance curves, R-curves, of aluminum single edge notched (SEN) specimens.

Descriptors :   *CRACK PROPAGATION, *ELASTIC PROPERTIES, *INTERFEROMETRY, *J INTEGRALS, ALUMINUM, DUCTILITY, EDGES, ENERGY TRANSFER, FRACTURE(MECHANICS), LIMITATIONS, MOIRE EFFECTS, PATHS, STABILITY, STRAIN RATE

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE