Accession Number:

ADA165833

Title:

Numerical Compliance and Stress Intensity Factor Calibrations of MRL (Materials Research Laboratories) Compact Specimens.

Descriptive Note:

Technical memo.,

Corporate Author:

AERONAUTICAL RESEARCH LABS MELBOURNE (AUSTRALIA)

Personal Author(s):

Report Date:

1985-11-01

Pagination or Media Count:

26.0

Abstract:

The fracture mechanics parameters K sub IC the plane strain fracture toughness and J sub IC the critical value of the J integral characterise the resistance of a material to cracking for elastic and elastic-plastic conditions at the crack tip respectively. Standard specimen configurations are available for K sub IC and J sub IC testing, and these are given in ASTM standards E-399 and E-813 respectively. At Materials Research Laboratories, Melbourne, a compact specimen design has been developed which has been found to be suitable for both K sub IC and J sub IC testing. For determining K sub IC, a stress intensity factor K calibration is required for the specimen, and for determining J sub IC using the single specimen technique, a compliance calibration is needed. This memorandum describes these calibrations, which were obtained using finite element analyses, and gives equations which have been fitted to the results for convenience. Keywords Stress analysis TablesData.

Subject Categories:

  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE