Simultaneous PVDF/VISAR measurement technique for isentropic loading with graded density impactors

Journal Article · Wed Jul 01 00:00:00 EDT 1998 · AIP Conference Proceedings

OSTI ID:326858

Reinhart, W D ^[1]

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1. Ktech Corporation, Albuquerque, New Mexico, 87110 (United States); The tenth American Physical Society topical conference on shock compression of condensed matter

A simultaneous PVDF/VISAR measurement technique was used for isentropic-loading experiments with a polymethyl methacrylate (PMMA) specimen. The experiments used a graded density impactor accelerated onto a tantalum driver backed with PMMA and then lithium fluoride windows for each experiment. Simultaneous measurements made at each window interface provided precise transit time and particle velocity measurements which can be used to determine the stress-vs-strain loading path using Lagrangian analysis techniques. The experimental technique provides access to 40 GPa stress levels in PMMA under isentropic-loading conditions. {copyright} {ital 1998 American Institute of Physics.}

• Research Organization: Sandia National Laboratory
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 326858
• Report Number(s): CONF-970707--
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 429; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
IMPACT SHOCK
INTERFEROMETRY
MEASURING METHODS
SHOCK WAVES
STRESSES