Kraemer, Fabian ; Stähler, Michael ; Klein, Marcus ; Oechsner, Matthias (2022)
Influence of Lubrication Systems on the Fatigue Strength of Bolted Joints.
In: Applied Sciences, 2022, 12 (6)
doi: 10.26083/tuprints-00021108
Artikel, Zweitveröffentlichung, Verlagsversion
Kurzbeschreibung (Abstract)
The fatigue behavior of bolted joints is critical to failure for many applications due to the high notch effect. Among other parameters, the lifetime is based on the influence of the surface system, consisting of corrosion protection and lubricant. With the intention of considering the surface system in the design and dimensioning process of bolted joints, experimental investigations are carried out systematically for an exemplary selected basecoat and various lubricant systems. The basis is given by fatigue tests supported by selected methods of material analysis for the fractographic evaluation. A reproducible method to determine the crack initiation as well as the crack propagation is developed and used for the evaluation of lubricant systems. Defined damage can be reproducibly assigned on the basis of a critical frequency change rate of the resonance test machine. A high durability of the friction in the load-bearing contact (e.g., greases) reduces the stress and delays the crack initiation. Lubricants which are able to creep (e.g., oil) slow down the crack propagation and increase the lifetime, which is proved by a higher number of cycles to failure and an increased fatigue strength.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Kraemer, Fabian ; Stähler, Michael ; Klein, Marcus ; Oechsner, Matthias |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Influence of Lubrication Systems on the Fatigue Strength of Bolted Joints |
| Sprache: | Englisch |
| Publikationsjahr: | 2022 |
| Publikationsdatum der Erstveröffentlichung: | 2022 |
| Verlag: | MDPI |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Applied Sciences |
| Jahrgang/Volume einer Zeitschrift: | 12 |
| (Heft-)Nummer: | 6 |
| Kollation: | 19 Seiten |
| DOI: | 10.26083/tuprints-00021108 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/21108 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | The fatigue behavior of bolted joints is critical to failure for many applications due to the high notch effect. Among other parameters, the lifetime is based on the influence of the surface system, consisting of corrosion protection and lubricant. With the intention of considering the surface system in the design and dimensioning process of bolted joints, experimental investigations are carried out systematically for an exemplary selected basecoat and various lubricant systems. The basis is given by fatigue tests supported by selected methods of material analysis for the fractographic evaluation. A reproducible method to determine the crack initiation as well as the crack propagation is developed and used for the evaluation of lubricant systems. Defined damage can be reproducibly assigned on the basis of a critical frequency change rate of the resonance test machine. A high durability of the friction in the load-bearing contact (e.g., greases) reduces the stress and delays the crack initiation. Lubricants which are able to creep (e.g., oil) slow down the crack propagation and increase the lifetime, which is proved by a higher number of cycles to failure and an increased fatigue strength. |
| Freie Schlagworte: | fatigue behavior, surface influence, crack initiation, crack propagation, bolted joint, VDI guideline 2230 |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-211082 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 600 Technik |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet und Institut für Werkstoffkunde - Zentrum für Konstruktionswerkstoffe - Staatliche Materialprüfungsanstalt Darmstadt (IfW-MPA) |
| Hinterlegungsdatum: | 08 Apr 2022 11:23 |
| Letzte Änderung: | 11 Apr 2022 05:41 |
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