J (sub Ic) Testing Using Arc-Tension Samples.
Abstract
JIc was determined in two materials (6061-T651 aluminum and ASTM A-723 grade 1, class 4 pressure vessel steel) using arc-tension (A(T)) and compact tension (C(T)) samples. The J-R curves were determined by using both the multispecimen method and the compliance unloading method. J was determined for the A(T) specimen by the Merkle-Corten method of analysis as modified by Clarke and Landes. A correction factor was included to account for the tensile loading component, and both the plastic and elastic components of J were necessary when using the A(T) sample. With the proper formulas for J in the A(T) sample, the same J-R curves were determined in both materials using either A(T) of C(T) samples. This preliminary study suggested that the A(T) sample was totally adequate for JIc testing and should be included in subsequent versions of ASTM Method E-813 on JIc, A Measure of Fracture Toughness.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1986
- Accession Number
- ADA165788
Entities
People
- J. A. Kapp
- W. J. Bilinsky
Organizations
- United States Army Armament Research, Development and Engineering Center