Abstract
In this paper, the fatigue crack growth characteristics of Elastosil
R RT 625 are determined by performing fatigue crack experiments based on ISO 27727. Elastosil R RT 625 is a silicone rubber used by Danfoss PolyPower A/S as the dielectric material in their DEAP elements.
Cracks were characterised by a large amount of crack tip roughening, and a crack pattern that oscillated around the mean crack propagation direction. The amount of deviation from the expected crack path was proportional to the strain-level in the test. Despite the rough oscillating crack appearance, a linear
relationship between the crack length and the amount of cycles was obtained. When plotting the crack growth per cycle against the applied load, the existence of a power law domain which can be described by Paris’ Law was observed. The silicone rubber had a significantly lower b exponent than a large range of other
rubbers.
R RT 625 are determined by performing fatigue crack experiments based on ISO 27727. Elastosil R RT 625 is a silicone rubber used by Danfoss PolyPower A/S as the dielectric material in their DEAP elements.
Cracks were characterised by a large amount of crack tip roughening, and a crack pattern that oscillated around the mean crack propagation direction. The amount of deviation from the expected crack path was proportional to the strain-level in the test. Despite the rough oscillating crack appearance, a linear
relationship between the crack length and the amount of cycles was obtained. When plotting the crack growth per cycle against the applied load, the existence of a power law domain which can be described by Paris’ Law was observed. The silicone rubber had a significantly lower b exponent than a large range of other
rubbers.
Original language | English |
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Title of host publication | Proceedings of International Mechanical Engineering Congress & Exposition |
Volume | 3 |
Publisher | The American Society of Mechanical Engineers (ASME) |
Publication date | 2012 |
Pages | 627-634 |
ISBN (Print) | 9780791845196 |
DOIs | |
Publication status | Published - 2012 |
Event | IMECE 2012 - Houston, United States Duration: 9 Nov 2012 → 15 Nov 2012 |
Conference
Conference | IMECE 2012 |
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Country/Territory | United States |
City | Houston |
Period | 09/11/2012 → 15/11/2012 |