Mechanical testing equipment for material characterization
AssigneeNational Technology & Engineering Solutions of Sandia, LLC
InventorsBo Song, Evan P. Johnson, Matthew A Spletzer, Jack D. Heister, Randy L. Everett, Thomas L. Martinez, Marlene E. Knight, Dennis John Kenney
Life of this patent
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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.
Claims13
A mechanical testing apparatus for a specimen, the mechanical testing apparatus comprising:
- a drop table system having a drop carriage;
- and
- a Hopkinson bar positioned parallel to a motion of the drop carriage and connected to the drop table system by the specimen;
- wherein the drop table system comprises:
- an impact plate having a threaded hole configured to hold a first end of the specimen, wherein the drop carriage is configured to move towards the impact plate;
- an impactor connected to the drop carriage, the impactor configured to strike a pulse shaper associated with the impact plate;
- an accelerometer connected to the impact plate;
- a plurality of guide rods extending through the impact plate;
- a plurality of springs surrounding each of the plurality of guide rods;
- a bottom plate connected to the plurality of guide rods;
- and
- a bumper connected to the bottom plate, wherein the bumper is configured to absorb momentum and stop the impact plate.
A mechanical testing apparatus for a specimen, the mechanical testing apparatus comprising:
- a drop table system having a drop carriage;
- and
- a Hopkinson bar positioned parallel to a motion of the drop carriage and connected to the drop table system by the specimen;
- wherein the drop table system comprises:
- an impact plate configured to hold the specimen;
- a plurality of guide rods extending through the impact plate;
- a plurality of springs surrounding each of the plurality of guide rods;
- a bottom plate connected to the plurality of guide rods;
- and
- a bumper connected to the bottom plate, wherein the bumper is configured to absorb momentum and stop the impact plate.
Dependencies are inferred from the claim text.