Method for characterizing the cracking mechanism of a material from the fracture surface thereof
US10254205B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 30, 2015 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Nov 8, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30136
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The disclosed method includes, from a topographic map showing, for a set of points {x} located in a midplane of the fracture surface, a height of the fracture surface h relative to the midplane: a step of determining, for each point x on the topographic map, a quantity ωε representative of an average difference in height)IδxI≤ε between the height h of the fracture surface at point x in question and the height h of the fracture surface at one or more points {x+δx} located inside a circle of radius ε centered on point x in question, a step of determining, according to a test distance δr, a spatial correlation function Cε representing a spatial correlation between points {x} and points {x+δx} such as IδxI=δr, and a step of determining a correlation length ξ from the spatial correlation function Cε.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.