Determination of elastomer material properties for the Mullins effect using a bi-axial test device
US7472602B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2007 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Jun 29, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0282
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods for determining material properties of elastomers for the Mullins effect are described. In one aspect of the present invention, material properties of an elastomer membrane specimen are obtained using a system comprising a bi-axial test device, a pump, a fluid reservoir, a linear variable differential transformer, a pressure transducer and a computer. The bi-axial test device comprises a top plate and a bottom plate. The top plate has a circular hole configured to allow the specimen to be expanded up by pressures of the inflating fluids. The circular hole is so dimensioned that the specimen can be expanded with a substantially low pressure. The bottom plate is a solid plate configured with a fluid intake at one side and a fluid outlet at the other end. The fluid intake is connected to the fluid reservoir. Fluids stored in the fluid reservoir are pumped into the bi-axial test device by the pump. The fluid outlet is connected to the pressure transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.