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US 2026/0029299 A1Published application
Test fixture for drop-weight impact event
AssigneeThe Boeing Company
InventorsBrian Justusson, Matthew Jeffrey Molitor, Brian Andrew Carpenter, Rebecca Ann Cutting
Life of this patent
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Abstract
A test fixture and associated method are described. The test fixture includes a base defining an aperture; a plurality of specimen clamping elements; and a plurality of viscoelastic elements. The plurality of specimen clamping elements are secured to the base via the plurality of viscoelastic elements. The plurality of specimen clamping elements are arranged to secure a composite specimen to the base and overtop of the aperture.
Claims20
A test fixture, comprising:
- a base defining an aperture;
- a plurality of specimen clamping elements;
- and
- a plurality of viscoelastic elements;
- wherein the plurality of specimen clamping elements are secured to the base via the plurality of viscoelastic elements;
- and
- wherein the plurality of specimen clamping elements are arranged to secure a composite specimen to the base and overtop of the aperture.
4 more elements
An evaluation method, the method comprising:
- preparing a composite specimen;
- affixing a plurality of specimen clamping elements to the composite specimen;
- affixing a plurality of viscoelastic elements to the plurality of specimen clamping elements;
- securing the composite specimen to a base via the plurality of viscoelastic elements affixed to the plurality of specimen clamping elements;
- executing a low velocity impact test on the composite specimen;
- and
- evaluating structural integrity of the composite specimen based upon the low velocity impact test on the composite specimen.
4 more elements
A test fixture, comprising:
- a base defining an aperture;
- a plurality of specimen clamping elements;
- and
- a plurality of viscoelastic elements;
- wherein the plurality of specimen clamping elements are secured to the base via the plurality of viscoelastic elements;
- wherein one of the plurality of viscoelastic elements comprises a spring and a damper;
- wherein the spring comprises an adjustable spring having a selectable spring constant;
- wherein the damper comprises an adjustable damper having a selectable damping constant;
- and
- wherein the plurality of specimen clamping elements are arranged to secure a composite specimen to the base and overtop of the aperture.
7 more elements
Dependencies are inferred from the claim text.