Automatic Restraint and Visual Detection of Fatigue Crack Growth When Applying an Anti-fatigue Smart Paste to Bolt Holes
| Autor: | Ichihiko Takahashi, Yoshihisa Tanaka |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Materials science
business.product_category business.industry Scanning electron microscope Mechanical Engineering technology industry and agriculture Metals and Alloys Fractography Structural engineering Paris' law Silicone grease humanities Wedge (mechanical device) Surfaces Coatings and Films Visual detection Mechanics of Materials Composite material business Black colour |
| Zdroj: | QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY. 33:211-223 |
| ISSN: | 0288-4771 |
| DOI: | 10.2207/qjjws.33.211 |
| Popis: | An anti-fatigue smart paste, which consists of fine alumina particles and silicone grease with low viscosity, was applied to a bolt hole (and its periphery in some cases) in a steel plate specimen, and the effects of the smart paste on automatic restraint and visual detection of fatigue crack growth were experimentally investigated through fatigue tests. Fractographic observations using a scanning electron microscope were also carried out. As a result, approximately 20∼410% increase in failure life was produced by the wedge effect of the alumina particles in the smart paste. When the smart paste was applied, remarkable black colour developed in the white paste along the paths of crack growth, exceedingly facilitating the visual detection of the crack growth. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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