Procedure for estimating fracture energy from fracture surface roughness
US4860589A · kind A · utility
3Cited by
1References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 10, 1987 |
| Grant date | Aug 29, 1989 |
| Priority date | — |
| Expiry date | Dec 10, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0212
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The fracture energy of a material is determined by first measuring the length of a profile of a section through a fractured surface of the material taken on a plane perpendicular to the mean plane of that surface, then determining the fractal dimensionality of the surface. From this, the yield strength of the material, and the Young's Modulus of that material, the fracture energy is calculated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.