Mechanical testing equipment for material characterization

DWPI Title: Mechanical testing apparatus for obtaining stress-strain data of specimen, has springs for surrounding guide rods, bottom plate connected to guide rods, and bumper connected to bottom plate, and absorbing momentum and stopping impact plate
Abstract: A mechanical testing apparatus for a specimen is presented. The mechanical testing apparatus comprises a drop table system and a Hopkinson bar. The drop table system has a drop carriage. The Hopkinson bar is positioned parallel to a motion of the drop carriage and connected to the drop table system by the specimen.
Use: Mechanical testing apparatus for obtaining stress-strain data of a specimen.
Advantage: The apparatus increases quantity of the guide rods to reduce bending experience by the impact plate.
Novelty: The apparatus (200) has a drop table system (202) defined with a drop carriage. A Hopkinson bar (204) is positioned parallel to motion of the drop carriage and connected to the drop table system by a specimen. The drop table system comprises an impact plate (206) having a threaded hole to hold a first end of the specimen. The drop carriage is moved toward the impact plate. An impactor (210) is connected to the drop carriage, and strikes a pulse shaper (211) associated with the impact plate. An accelerometer (212) is connected to the impact plate. Guide rods (218) are extended through the impact plate. Springs (220) surround each guide rod. A bottom plate (222) is connected to the guide rods. A bumper (224) is connected to the bottom plate, and absorbs momentum and stop the impact plate.
Filed: 12/1/2016
Application Number: US15366921A
Tech ID: SD 13524.0
This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.
Data from Derwent World Patents Index, provided by Clarivate
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