Accession Number:

AD0761102

Title:

K Calibration for 'C' Shaped Fracture Toughness Specimens of Various Geometries.

Descriptive Note:

Technical rept.,

Corporate Author:

WATERVLIET ARSENAL N Y

Report Date:

1973-04-01

Pagination or Media Count:

25.0

Abstract:

Prior collocation results are combined with new collocation data and analyzed using two parameter data approximation methods and fracture mechanics methods. A general K calibration is obtained for C shaped specimens which have outer to inner radius ratios, W r sub 2r sub 1, between 1.4 and 2.5. The K calibration for C shaped specimens is found to depend on the load eccentricity to specimen thickness ratio, xt, as well as the usual crack depth to specimen thickness ratio, at. The K results are presented as tabular and plotted values from a cubic spline surface used to approximate the collocation data and as a polynomial approximation of the collocation data over a more limited range of xt. Modified author abstract

Subject Categories:

  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE