Applying the digital image correlation method to fretting contact for slip measurement
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Yksityiskohdat
| Alkuperäiskieli | Englanti |
|---|---|
| Sivumäärä | 11 |
| Julkaisu | Proceedings of the institution of Mechanical Engineers Part J: Journal of Engineering Tribology |
| Vuosikerta | 231 |
| Numero | 4 |
| Varhainen verkossa julkaisun päivämäärä | 20 elokuuta 2015 |
| DOI - pysyväislinkit | |
| Tila | Julkaistu - 2015 |
| OKM-julkaisutyyppi | A1 Alkuperäisartikkeli |
Tiivistelmä
Fretting is a consequence of small relative oscillatory movement between contacting parts and can cause serious damage to machine components. This paper describes the implementation of digital image correlation method to a fretting test device to measure the relative movement, i.e. slip, between the contacting parts. A complete contact fretting test device is used, in which two flat fretting pads are clamped against a cyclically loaded flat fretting specimen. The material used is quenched and tempered steel. Digital image correlation, equipped with a microscope, is employed to measure the local displacement field at the contact edge. The micrometer-level slip amplitude and the length of the slip region are determined at specific time intervals during a fretting fatigue test. Both of these quantities appear to decrease and stabilize during fretting fatigue testing. The slip decreases markedly during the initial cycles.