Experimentally-Determined Plastic Wave Velocities in Fully-Annealed 1100F Aluminum (Striker Velocity 89 ft/sec to 788 ft/sec).
Abstract
A previously-reported experimental system for determining the large strains, surface rotations, strain rates, and plastic wave velocities during free-free axial impacts is used to investigate the behavior of fully-annealed small grain 1100F aluminum rods under impact conditions. The system employs in-surface diffraction grating strain transducers illuminated by a pulsed ruby laser, with the strain-surface rotation-time-dependent diffraction pattern recorded by high-speed streak cameras. Strain-time and plastic wave velocity-strain data are presented for free-free axial impacts of aluminum rods at striker velocities ranging from 89 ft/sec to 788 ft/sec. Strains to 5.5% and strain-rates to 2000/sec are recorded. The data is compared to previously-reported data as a means of establishing the validity of the experimental technique, and as corroboration of some of the existing data. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1970
- Accession Number
- AD0717328
Entities
People
- R. A. Douglas
- R. S. Steele
- W. L. Bingham
- W. L. Liddell
Organizations
- North Carolina State University