Method and apparatus for testing shear strength of curved core material
US7389699B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2005 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Dec 27, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N3/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and an apparatus for testing the shear strength of curved core material. The method comprises the steps of: (a) bonding one side of a test specimen of curved core material to a convex curved surface of a first support; (b) bonding the other side of the test specimen to a concave curved surface of a second support; (c) mounting the first support so that it is pivotable about a pivot axis; (d) fixing the second support to a rigid frame; (e) after step (a) through (d) have been performed, causing the first support to pivot about the pivot axis; and (f) during step (e), continuously monitoring a parameter that will manifest a change if and when shear induced in the test specimen causes a structural change indicative of failure of the test specimen. A linearly displaceable head is mechanically coupled to the first support in a manner such that linear displacement of the head is converted into pivoting of the first support. The monitored parameter is the load produced as the test specimen resists pivoting of the first support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.