New Phenomena Observed in Plate Impacts onto Alumina Bars

Journal Article · Fri Jul 28 00:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2263452· OSTI ID:20875778

Beno, T; Bless, S ^[1]; Nichols, S ^[2]

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1. Institute for Advanced Technology, University of Texas at Austin, Austin, TX 78759 (United States)
2. Department of Mechanical Engineering, University of Texas at Austin, Austin, TX 78712 (United States)

Steel flyer plates were used to impact alumina bars at 275 m/s, nominally. Manganin gauges were used to monitor stress waves in the bars. Geometry of the impact was varied in an attempt to extend gauge records. Gauge life was best improved by careful alignment. The longest gauge records indicated that alumina retains a strength level of about 2 GPa after initial failure. Stress levels of over 5 GPa were obtained with impact-zone confinement.

• OSTI ID: 20875778
• Journal Information: AIP Conference Proceedings, Vol. 845, Issue 1; Conference: American Physical Society Topical Group conference on shock compression of condensed matter, Baltimore, MD (United States), 31 Jul - 5 Aug 2005; Other Information: DOI: 10.1063/1.2263452; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALUMINIUM OXIDES
FAILURES
IMPACT TESTS
MANGANIN
PLATES
PRESSURE DEPENDENCE
PRESSURE RANGE GIGA PA
STEELS
STRAIN GAGES
STRESSES