Modeling the Effect of Penetrator Nose Shape on Threshold Velocity for Thick Aluminum Targets

Modeling the Effect of Penetrator Nose Shape on Threshold Velocity for Thick Aluminum Targets

This study examines the ability of the CTH hydrocode to predict the effects of rod nose shape on the threshold impact velocity, whereby tungsten alloy long rods transition from rigid-body to eroding-rod penetration during penetration or perforation of thick aluminum targets. Two rod nose shapes (hem...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: Scheffler, Daniel R
Format: Report
Sprache:eng
Schlagworte:
ALUMINUM
ALUMINUM ALLOYS
Ammunition and Explosives
Armor
ARMOR PLATE
BLINT COMPUTER PROGRAM
CTH HYDROCODE
HEMISPHERICAL
IMPACT
IMPACT VELOCITY
MATERIALS
OGIVAL
PE62618A
PENETRATION
PROJECTILES
Properties of Metals and Alloys
ROD NOSE SHAPE
SIMULATION
STEEL
TARGETS
THICKNESS
THRESHOLD EFFECTS
TUNGSTEN ALLOYS
VELOCITY
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Beschreibung
Zusammenfassung:This study examines the ability of the CTH hydrocode to predict the effects of rod nose shape on the threshold impact velocity, whereby tungsten alloy long rods transition from rigid-body to eroding-rod penetration during penetration or perforation of thick aluminum targets. Two rod nose shapes (hemispherical and ogival) were used in the simulations, and two aluminum alloys (5083 and 7039) were used as the target materials. The predicted results are compared to an experimental study. Predictions of the threshold velocity for the ogival-nose rod are offered.