Image-intensifier camera studies of shocked metal surfaces
A high-space-resolution image-intensifier camera with luminance gain of up to 5000 and exposure times as short as 30 ns has been applied to the study of the interaction of posts and welds with strongly shocked metal surfaces, which included super strong steels. The time evolution of a single experiment can be recorded by multiple pulsing of the camera. Phenomena that remain coherent for relatively long durations have been observed. An important feature of the hydrodynamic flow resulting from post-plate interactions is the creation of a wave that propagates outward on the plate; the flow blocks the explosive product gases from escaping through the plate for greater than 10 ..mu..s. Electron beam welds were ineffective in blocking product gases from escaping for even short periods of time.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5281224
- Report Number(s):
- LA-UR-85-2461; CONF-861003-1; ON: DE85015709
- Resource Relation:
- Conference: International symposium on intense dynamic loading and its effects, Beijing, China, 1 Oct 1986
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CAMERAS
IMAGE INTENSIFIERS
METALS
MATERIALS TESTING
SURFACE PROPERTIES
DYNAMIC LOADS
ELECTRON BEAMS
EXPLOSIONS
EXPLOSIVE INSTABILITY
FLOW MODELS
GAIN
GASES
HYDRODYNAMICS
LUMINESCENCE
RESOLUTION
STEELS
SURFACES
SYSTEMS ANALYSIS
ALLOYS
AMPLIFICATION
BEAMS
ELEMENTS
FLUID MECHANICS
FLUIDS
INSTABILITY
IRON ALLOYS
IRON BASE ALLOYS
LEPTON BEAMS
MATHEMATICAL MODELS
MECHANICS
PARTICLE BEAMS
PLASMA INSTABILITY
TESTING
420500* - Engineering- Materials Testing