Methods, program products, and systems for estimating the stress-strain relationship of a toughened structural adhesive polymer
US8108156B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2008 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Jun 3, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0222
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods, program products, and computer systems for estimating a stress of a toughened structural adhesive polymer are provided. One method comprises selecting a strain, a strain rate, a temperature, or a combination thereof at which the stress is to be estimated. A value of a strain-hardening stress of the toughened structural adhesive polymer is determined, wherein the value of the strain-hardening stress is dependent on the temperature and the strain. A value of a non-strain-hardening stress of the toughened structural adhesive polymer is determined, wherein the value of the non-strain-hardening stress is dependent on the strain, the strain rate, and the temperature. The value of the strain-hardening stress is added to the value of the non-strain-hardening stress to obtain an estimated total stress.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.