Material testing systems configured for load measurement using structural component strain
AssigneeIllinois Tool Works Inc.
InventorsJames B. Smallwood, George Lyle
Life of this patent
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Abstract
Disclosed example material testing systems include: a crosshead configured to be actuated to transfer testing force to a test specimen during a material test; a beam configured to hold an end of the test specimen opposite the crosshead; an actuator configured to actuate the crosshead and to apply the testing force to the test specimen; a sensor configured to measure a deflection in at least one of the crosshead or the beam; and control circuitry configured to determine a force applied by the crosshead to the test specimen based on the measured deflection.
Claims23
A material testing system, comprising:
- a crosshead configured to be actuated to transfer testing force to a test specimen during a material test;
- a beam configured to hold an end of the test specimen opposite the crosshead;
- an actuator configured to actuate the crosshead and to apply the testing force to the test specimen;
- a sensor configured to measure a deflection in at least one of the crosshead or the beam;
- and
- control circuitry configured to determine a force applied by the crosshead to the test specimen based on the measured deflection.
A material testing system, comprising:
- a crosshead configured to be actuated to transfer testing force to a test specimen during a material test;
- a lead screw coupled to the crosshead to drive the crosshead;
- an actuator configured to actuate the lead screw and to apply the testing force to the crosshead;
- a load cell coupled between the lead screw and the crosshead, and configured to measure a force applied by the lead screw to the crosshead;
- and
- control circuitry configured to determine a force applied by the crosshead to the test specimen based on the measured force.
A material testing system, comprising:
- a crosshead;
- a guide column coupled to the crosshead to selectively brace the crosshead;
- an actuator coupled to the crosshead and configured to apply the testing force to a load string;
- a load cell coupled between the guide column and the crosshead, and configured to measure a force applied by the crosshead to the guide column;
- and
- control circuitry configured to determine a force applied by the actuator to the test specimen based on the measured force.
Dependencies are inferred from the claim text.