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Search Publications by: Eric Whitenton (Ctr)

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Displaying 126 - 150 of 170

Manufacturing and Quality Control of the NIST Reference Material 8240 Standard Bullet

October 26, 2003
Author(s)
Eric P. Whitenton, Clarence Johnson, David R. Kelley, Robert A. Clary, Brian S. Dutterer, Li Ma, Jun-Feng Song, Theodore V. Vorburger
The National Integrated Ballistics Information Network (NIBIN) is currently under development by the Bureau of Alcohol, Tobacco and Firearms (ATF) and the Federal Bureau of Investigation (FBI). In support of this effort, the National Institute of Standards

Thermal Imaging of Metals in a Kolsky-Bar Apparatus

October 1, 2003
Author(s)
Howard W. Yoon, D Basak, Richard L. Rhorer, Eric P. Whitenton, Timothy J. Burns, Richard J. Fields, Lyle E. Levine
For materials testing at elevated temperatures, we describe the design and the development of a resistively heated Kolsky-bar apparatus. The temperature of the sample is determined by non-contact thermometry and the spatial temperature gradients in the

Kolsky Bar With Electrical Pulse Heating of the Sample

June 1, 2003
Author(s)
Eric P. Whitenton, Michael Kennedy, Matthew A. Davies, Gerald V. Blessing, Brian S. Dutterer, Richard L. Rhorer, Howard W. Yoon, Lyle E. Levine, Richard J. Fields, D Basak, Timothy J. Burns
The accuracy of simulations for modeling of machining processes is often limited due to insufficient knowledge of the material properties during machining, which can involve strain rates on the order of 104 per second or higher, plus rapid material heating

Bullet Signature Measurements at NIST

January 1, 2003
Author(s)
Jun-Feng Song, Li Ma, Eric P. Whitenton, Theodore V. Vorburger
The RM (Reference Material) 8240 standard bullets are currently under development at the National Institute of Standards and Technology 9NIST) to support the coming National Integrated Ballistics Information Network (NIBIN). A bullet signature measurement

Constitutive Model Data for Machining Simulation Using the NIST Pulse-Heat Kolsky Bar

January 1, 2003
Author(s)
Eric P. Whitenton, Michael Kennedy, Matthew A. Davies, Gerald V. Blessing, Brian S. Dutterer, Richard L. Rhorer, Howard W. Yoon, Richard J. Fields, D Basak, Timothy J. Burns
A new facility for dynamic material testing using a traditional Kolsky bar with the addition of controlled electrical-resistive pulse heating has been established at the National Institute of Standrds and Technology (NIST). Dynamic stress-strain data have

NIST Reference Material (RM) 8240/2350 Project-Standard Bullets and Casings

January 1, 2003
Author(s)
Jun-Feng Song, Theodore V. Vorburger, Robert A. Clary, Li Ma, M Ols, Eric P. Whitenton
Standard bullets and casings are currently under development to support the National Integrated Ballistics Information System (NIBIN) in the U.S. Based on a numerically controlled diamond turning technique, 20 RM 8240 standard bullets were fabricated in

Probe-Force Calibration Experiments Using the NIST Electrostatic Force Balance

January 1, 2003
Author(s)
Jon R. Pratt, David B. Newell, John A. Kramar, J Mulholland, Eric P. Whitenton
The sensitivity of a piezoresistive cantilever force sensor has been determined by probing the weighing pan of the NIST prototype electrostatic force balance. In this experiment, micronewton contact forces between a force probe and the balance''s weighing

Thermal Imaging of Metals in a Kolsky-Bar Apparatus

January 1, 2003
Author(s)
Eric P. Whitenton, Richard L. Rhorer, Howard W. Yoon, D Basak, Richard J. Fields, Lyle E. Levine, Timothy J. Burns
For materials testing at elevated temperatures, we describe the design and the development of a resistively heated Kolsky-bar apparatus. The temperature of the sample is determined by non-contact thermometry and the spatial temperature gradients in the

Standards for Bullets and Casings

November 1, 2002
Author(s)
Jun-Feng Song, Theodore V. Vorburger, Robert A. Clary, Eric P. Whitenton, Li Ma, Susan M. Ballou
The National Institute of Standards and Technology is developing reference standards through its Office of Law Enforcement Standards with funding provided by the National Institute of Justice. The standard reference materials are used by crime laboratories

Establishment of Ballistics Measurement Traceability Using NIST RM 8240 Standard Bullets

August 1, 2002
Author(s)
Jun-Feng Song, Theodore V. Vorburger, Robert A. Clary, Eric P. Whitenton
The NIST RM (Reference Material) 8240 standard bullets are being developed to support the traceability of ballistics measurements nationwide. Six master bullets from ATF and FBI are measured at NIST using a stylus measurement system. The resulting set of

Standards for Optical Imaging Systems in Forensic Laboratories

August 1, 2002
Author(s)
Jun-Feng Song, Theodore V. Vorburger, Robert A. Clary, Eric P. Whitenton, Li Ma, Susan M. Ballou
NIST RM (Reverence Material) 8240/2350 standard bullet and casing project is currently ongoing to support the National Integrated Ballistics Information Network (NIBIN) in the US. The original bullet signatures were traced on six master bullets from

SRM 2460/2461 Standard Bullets and Casings Project

July 10, 2002
Author(s)
Jun-Feng Song, Eric P. Whitenton, David R. Kelley, Robert A. Clary, L Ma, Susan M. Ballou, M Ols
The National Institute of Standards and Technology (NIST) Standard Reference Material (SRM) 2460/2461 standard bullets and casings project will provide support to firearms examiners and to the National Integrated Ballistics Information Network (NIBIN) in
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