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Search Publications by: Enrico Lucon (Fed)

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Displaying 76 - 100 of 102

OVERVIEW OF NIST ACTIVITIES ON SUB-SIZE AND MINIATURIZED CHARPY SPECIMENS: CORRELATIONS WITH FULL-SIZE SPECIMENS AND VERIFICATION SPECIMENS FOR SMALL-SCALE PENDULUM MACHINES

July 19, 2015
Author(s)
Enrico Lucon, Christopher N. McCowan, Raymond L. Santoyo
NIST in Boulder Colorado investigated the correlations between impact test results obtained from standard, full-size Charpy specimens (CVN) and specimens with reduced thickness (sub-size Charpy specimens, SCVN) or reduced or scaled cross-section dimensions

Determination of the compliance of NIST Charpy Impact Machines

February 10, 2015
Author(s)
Enrico Lucon
The compliance of a Charpy impact machine, CM, can be measured by means of a low-blow elastic test on an unnotched Charpy-type specimen, provided an instrumented striker is used. The resulting force/time and force/displacement test records can be analyzed

Testing of Small-Sized Specimens

September 26, 2014
Author(s)
Enrico Lucon
An extensive review of the current state-of-the-art of small specimen test technology (SSTT) has been presented, covering a number of experimental techniques aimed at characterizing the mechanical properties of materials and components through the use of

Impact Testing - Yesterday and Today

November 13, 2011
Author(s)
Enrico Lucon, Christopher N. McCowan
The Charpy impact test is a standardized high strain rate mechanical test which determines the amount of energy absorbed by a material during impact fracture. This test is widely applied in industry, since it is easy to prepare and conduct, and results can

Evaluation of Bias for Two Charpy Impact Machines Using the Same Instrumented Striker

May 1, 2011
Author(s)
Christopher N. McCowan, Enrico Lucon, Raymond L. Santoyo
Two Charpy machines were used to test NIST verification specimens at three energy levels: low energy (≈ 15 J at -40°C), high energy (≈ 100 J at -40°C) and super-high energy (≈ 240 J at room temperature). The study evaluates the differences observed for the
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