Dynamic constitutive response of tantalum at high strain rates

Journal Article · Fri Jul 10 00:00:00 EDT 1998 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.55661· OSTI ID:21185649

Duprey, K E; Clifton, R J ^[1]

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1. Division of Engineering, Brown University Providence, Rhode Island 02912 (United States)

Pressure-shear plate impact experiments were conducted on annealed and rolled tantalum foils to determine the dynamic constitutive response of the material at high strain rates between 10{sup 5}s{sup -1} and 10{sup 6}s{sup -1} and pressures between 4 and 8 GPa. The experiments were performed to determine the strain rate sensitivity of the flow stress of the metal. The results suggest that both texture and strain rate play an important role in determining the flow stress of tantalum.

• OSTI ID: 21185649
• Journal Information: AIP Conference Proceedings, Vol. 429, Issue 1; Conference: 10. American Physical Society topical conference on shock compression of condensed matter, Amherst, MA (United States), 27 Jul - 1 Aug 1997; Other Information: DOI: 10.1063/1.55661; (c) 1998 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANNEALING
DEFORMATION
FLOW STRESS
FOILS
IMPACT TESTS
PLATES
PRESSURE DEPENDENCE
PRESSURE RANGE GIGA PA
SENSITIVITY
SHEAR
STRAIN RATE
STRAINS
TANTALUM
TEXTURE