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US 6,679,124 B2Granted
Statistically rigid and dynamically compliant material testing system
AssigneeMTS Systems Corporation
InventorWarren C. Oliver
Life of this patent
Estimating the term…
Abstract
A material testing system includes a base and first and second specimen holders. A first displacement sensor measures displacement of the first specimen holder relative to the base. In addition, a second displacement sensor measures displacement of the second specimen holder relative to the base.
Claims22
A material testing system comprising:
- a base;
- a first specimen holder;
- a second specimen holder, the first specimen holder and the second specimen holder being adapted to hold a specimen in tension;
- a first displacement sensor measuring displacement of the first specimen holder relative to the base along a common axis between the first and second specimen holders;
- and
- a second displacement sensor measuring displacement of the second specimen holder relative to the base along the common axis.
3 more elements
A material testing system comprising:
- a base;
- a first specimen holder;
- a second specimen holder, the first specimen holder and the second specimen holder being adapted to hold a specimen in tension;
- a first displacement sensor measuring displacement of the first specimen holder relative to the base along a common axis between the first and second specimen holders;
- a second displacement sensor measuring displacement of the second specimen holder relative to the base along the common axis;
- and
- an actuator assembly fixedly coupled to the second specimen holder and operated as a function of the second displacement sensor to dispose the second specimen holder in a known position.
4 more elements
A material testing system comprising:
- a base;
- a first specimen holder;
- a second specimen holder;
- a first displacement sensor measuring displacement of the first specimen holder relative to the base along a common axis between the first and second specimen holders;
- and
- a second displacement sensor measuring displacement of the second specimen holder relative to the base along the common axis, wherein the second displacement sensor is a capacitive sensor.
3 more elements
A material testing system comprising:
- a first specimen holder;
- a second specimen holder aligned with the first specimen holder along a common axis;
- a first actuator coupled to the first specimen holder;
- a second actuator coupled to the second specimen holder;
- and
- a controller coupled to the first actuator and the second actuator, the controller operating the first actuator to cause displacement of the first specimen holder away from the second specimen holder along the common axis, the controller further operating the second actuator to dispose the second specimen holder in a known position.
3 more elements
A method for determining elastic and plastic properties of materials, comprising:
- attaching a specimen to a first holder and a second holder, the first and second holders defining a common axis;
- displacing the first holder away from the second holder along the common axis;
- applying a force to the second holder in a direction opposite displacement of the first holder;
- and
- simultaneously measuring extension of the specimen with a first sensor measuring displacement of the first holder and measuring force on the specimen with a second sensor.
2 more elements
A material testing system comprising:
- a first specimen holder;
- a second specimen holder aligned with the first specimen holder along a common axis;
- a first actuator coupled to the first specimen holder;
- a load assembly coupled to the second specimen holder and configured to control the second specimen holder to be statically rigid and dynamically compliant.
1 more element
Dependencies are inferred from the claim text.