Shear band formation in a W-Ni-Fe alloy under plate impact. Technical report, 1 November 1991-31 October 1992
Technical Report
·
OSTI ID:6857137
A thin foil of a W-Ni-Fe alloy, 50-200 micrometers in thickness, is sheared for 2 microseconds under plane wave conditions by plate impact. Shear bands observed show more intensely localized deformations than obtained in other experiments. The responses of the constituent phases, the tungsten grains and the matrix, as well as that of the composite alloy over a strain rate range of 10(-4)s(-1) to 7 x 10(5)s(-1) are experimentally obtained and characterized by a viscoplastic model. The effects of strain hardening, thermal softening, material inertia, rate sensitivity, heat conduction and material microscopic inhomogeneity, on dynamic shear localization, are investigated through finite element simulations.... Shear bands, Adiabatic shear bands, WHA, Tungsten heavy alloys, Plate impact, Pressure-shear impact.
- Research Organization:
- Brown Univ., Providence, RI (United States). Div. of Engineering
- OSTI ID:
- 6857137
- Report Number(s):
- AD-A-260702/6/XAB; CNN: DAAL03-91-G-0025
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360103* -- Metals & Alloys-- Mechanical Properties
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ADIABATIC PROCESSES
ALLOYS
BENCH-SCALE EXPERIMENTS
CALCULATION METHODS
COMPUTERIZED SIMULATION
DATA
DEFORMATION
DIAGNOSTIC USES
EXPERIMENTAL DATA
FINITE ELEMENT METHOD
FOILS
HARDENING
IMPACT TESTS
INFORMATION
INTERMETALLIC COMPOUNDS
IRON ALLOYS
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICAL TESTS
NICKEL ALLOYS
NUMERICAL DATA
NUMERICAL SOLUTION
PHYSICAL PROPERTIES
SHEAR PROPERTIES
SIMULATION
STRAIN HARDENING
STRAIN RATE
TEMPERATURE EFFECTS
TESTING
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES
TUNGSTEN ALLOYS
USES
360102 -- Metals & Alloys-- Structure & Phase Studies
360103* -- Metals & Alloys-- Mechanical Properties
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ADIABATIC PROCESSES
ALLOYS
BENCH-SCALE EXPERIMENTS
CALCULATION METHODS
COMPUTERIZED SIMULATION
DATA
DEFORMATION
DIAGNOSTIC USES
EXPERIMENTAL DATA
FINITE ELEMENT METHOD
FOILS
HARDENING
IMPACT TESTS
INFORMATION
INTERMETALLIC COMPOUNDS
IRON ALLOYS
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICAL TESTS
NICKEL ALLOYS
NUMERICAL DATA
NUMERICAL SOLUTION
PHYSICAL PROPERTIES
SHEAR PROPERTIES
SIMULATION
STRAIN HARDENING
STRAIN RATE
TEMPERATURE EFFECTS
TESTING
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES
TUNGSTEN ALLOYS
USES