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US 10,520,406 B2Granted
Tensile specimen, method for producing a tensile specimen, device for carrying out a tensile test, and method for carrying out a tensile test
AssigneeAirbus Defence and Space GmbH
InventorsPeter Starke, Harald Kraft, Martin Holzapfel, Marcel Brodbeck
Life of this patent
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Abstract
A tensile specimen, in particular a fiber-composite-material tensile specimen, includes a test portion which comprises a fiber material and a tensile stress direction which is predetermined for a material test, and a force-introduction portion, wherein the fiber material in the force-introduction portion extends at least in part along a face which is oriented obliquely to the tensile stress direction.
Claims15
A fiber-composite tensile test specimen, comprising:
- a substantially planar test portion comprising fiber material extending in a tensile stress direction which is predetermined for a material test;
- and
- two force-introduction portions disposed on opposite ends of the test portion, the fiber material extending in each force-introduction portion at least in part along a planar face which is oriented obliquely to a plane defined by the planar test portion.
A device for carrying out a tensile test, the device comprising:
- a moveable specimen holder body and a stationary specimen holder body, each comprising a force-transmission face for introducing a tensile force into a force-introduction face of a planar tensile specimen, the device having a predetermined tensile test direction;
- and
- an acceleration device,
- wherein each specimen holder body is longer than the respective force-introduction portion of the tensile specimen in order to apply a normal force resulting from the tensile force to the tensile specimen in a region of a transition between the force-introduction portion and a central test portion, and
- wherein each force-transmission face extends in a plane oriented obliquely to a plane defined by the planar tensile specimen.
2 more elements
A method for carrying out a tensile test, comprising:
- inserting a tensile specimen in a device for carrying out a tensile test, the tensile specimen comprising:
- a substantially planar test portion comprising a fiber material extending in a tensile test direction;
- two force-introduction portions disposed on opposite ends of the test portion, the fiber material extending in each force-introduction portion at least in part along a planar face which is oriented obliquely to a plane defined by the planar test portion;
- and
- an insert embedded in a region of each force-introduction portion;
- applying a tensile force to the force-introduction portions of the tensile specimen via force-transmission faces of the device which extend obliquely to the tensile test direction and correspond to force-introduction faces of the tensile specimen;
- and
- supporting a normal force resulting from the tensile force and acting on the tensile specimen by the insert.
5 more elements
Dependencies are inferred from the claim text.