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

Technical Report · Wed Oct 01 00:00:00 EDT 1997

DOI:https://doi.org/10.2172/537389· OSTI ID:537389

Anderson, M U; Chhabildas, L C ^[1]; Reinhart, W D ^[2]

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1. Sandia National Labs., Albuquerque, NM (United States)
2. Ktech Corp., Albuquerque, NM (United States)

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.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 537389
• Report Number(s): SAND--97-2541C; CONF-970707--; ON: DE98000560
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
42 ENGINEERING
EXPERIMENTAL DATA
IMPACT SHOCK
IMPACT TESTS
MEASURING METHODS
PMMA
SHOCK WAVES