| Title: | Compression pre-stress of tubular torsion springs |
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| Authors: | ID Močilnik, Vinko (Author)
ID Gubeljak, Nenad (Author)
ID Predan, Jožef (Author)
ID Flašker, Jože (Author) |
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| Files: |  Tehnicki_vjesnik_2010_Mocilnik_et_al._Compression_pre-stress_of_tubular_torsion_springs.pdf (1,10 MB)
MD5: 2C949E1E6E25AF21B0996E324095CF67
PID: 20.500.12556/dkum/f6eacad6-0283-4add-98c2-83f2e4281a45
 http://hrcak.srce.hr/59643
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| Language: | English |
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| Work type: | Scientific work |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FS - Faculty of Mechanical Engineering
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| Abstract: | This paper reports the results of a series of biaxial static compression and torsion experiments performed to evaluate the effects of static compression stress on the fatigue life of those smooth tubes made of high strength spring steel. The fatigue life of biaxial loaded springs depends, among others, on biaxial compression and torsion loading. A high shear loading ratio leads to low-cycle fatigue behaviour rather than high-cycle fatigue, because it was found that a crack was initiated at a local highly deformed area on surface of the specimen.The experimentally obtained results show a significant extension of fatigue strain life as a result of combining axial compression loading with torsion. Cracking behaviour was observed and it was noted that compression pre-stresses contribute to retardation of the fatigue crack initiation process and, consequently, contribute to the extension of fatigue life. |
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| Keywords: | fatigue, fatigue life, micro crack, multi axial stress state, pre-stressing, torsion, torsion bar springs, twist angle |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2010 |
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| Number of pages: | str. 307-315 |
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| Numbering: | Letn. 17, št. 3 |
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| PID: | 20.500.12556/DKUM-66804  |
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| ISSN: | 1330-3651 |
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| UDC: | 539.3:620.175.22 |
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| ISSN on article: | 1330-3651 |
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| COBISS.SI-ID: | 14522134 |
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| NUK URN: | URN:SI:UM:DK:FAWZGDZS |
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| Publication date in DKUM: | 11.07.2017 |
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| Views: | 1402 |
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| Downloads: | 132 |
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| Metadata: |    |
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| Categories: | Misc.
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