Crack-Length Determination for the Compact Tension Specimen Using a Crack-Opening-Displacement Calibration.
Abstract
A normalized calibration curve using clip-gage measurements of crack-opening-displacement (COD) at the crack mouth has been developed for the compact tension (CT) speciment. This procedure provides a simple, indirect determination of crack length during cyclic loading and is well adapted for automation of fatigue crack-growth-rate (FCGR) tests. The specific CT specimen configuration studied was the same as that employed in a recent interlaboratory FCGR testing program conducted by ASTM Sub-committee E24.04 on Subcritical Crack Growth. Alloys of aluminum titanium and steel were used for these tests.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 24, 1975
- Accession Number
- ADA013024
Entities
People
- A. M. Sullivan
Organizations
- United States Naval Research Laboratory