Method, system and device for determining interlaminar shear strength of composite laminated plate
US12270791B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2024 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Oct 10, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method, a system and a device for determining interlaminar shear strength of a composite laminated plate are provided. The method includes following steps: constructing a force-displacement curve of a composite laminated plate specimen based on strain data, corresponding to different displacements of the indenter, of the composite laminated plate specimen; determining a dominant strain based on plane strain nephograms; reading any defect in the plane strain nephogram corresponding to one displacement as a current defect, and determining a test force acting on the whole composite laminated plate specimen corresponding to the reference displacement of the indenter as a critical strain value; determining a product of the critical strain value and shear modulus under the dominant strain as the shear strength between adjacent single layers to be tested.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.