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Two related standards are currently being developed by ASTM Subcommittee E 28.07.07. The first is focused on test procedures for instrumented impact testing. It is intended that ASTM Standard E 23 will eventually reference the instrumented test standard for tests conducted using conventional Charpy V-notch (CVN) specimens. The second new standard covers miniaturized Charpy V-notch (MCVN) testing. The Instrumented/Miniaturized Charpy Round Robin Test Program was established to support development of these standards. The goal of the program is to test CVN and MCVN specimens in the transition region and in the upper-shelf region using an instrumented striker system. The test procedure for the round robin is prescribed in the draft standards. A total of six specimens are being tested in the upper-shelf region and six in the transition region for two materials.
impact testing, instrumented striker, absorbed energy, miniaturized Charpy testing, round robin test program
President, MPM Technologies, Inc., State College, PA
Research Engineer, MPM Technologies, Inc., State College, PA
Owner, Computational Mechanics, Inc., Julian, PA