Method and apparatus for determining the true stress and true strain behavior of a ductile polymer
US6267011A · kind A · utility
13Cited by
12References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1999 |
| Grant date | Jul 31, 2001 |
| Priority date | — |
| Expiry date | Mar 31, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0254
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A small punch test apparatus is used to determine true stress and true strain in a ductile polymeric material as it undergoes deformation by the punch head. The information gathered can be used comparatively to assess the acceptability of a body implant subjected to sterilization against similar information obtained on another implant of the same polymer already known to be acceptable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.