| Title: | Behaviour of short cracks emanating from tiny drilled holes |
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| Authors: | ID Gliha, Vladimir (Author)
ID Maruščak, P. O. (Author)
ID Vuherer, Tomaž (Author) |
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| Files: |  Materiali_in_Tehnologije_2013_Gliha,_Maruschak,_Vuherer_Behaviour_of_Short_Cracks_Emanating_From_Tiny_Drilled_Holes.pdf (1,42 MB)
MD5: 0C2F9B3D9A7162760B0309504CEC7C60
 http://mit.imt.si/Revija/izvodi/mit134/gliha.pdf
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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: | Specimens with martensitic microstructure were defected by tiny drilled holes with the existing local residual stresses induced by drilling and without them. The objective of this research was to determine the cyclic stress level for the crack initiation and fatigue limit of the defected and smooth specimens' dependence upon the residual-stress field. Compressive residual stresses retarded the crack initiation. Immediately after the crack initiation, residual stresses decelerated the short-crack propagation, but later, when the residual-stress sign was changed, they accelerated it. Non-propagating short-crack size and fatigue limit also depend on the residual-stress field. |
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| Keywords: | small defect, drilled hole, crack initiation, crack propagation, short crack, long crack, anomalous fast-crack propagation |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2013 |
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| Number of pages: | str. 441-446 |
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| Numbering: | Letn. 47, št. 4 |
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| PID: | 20.500.12556/DKUM-50448  |
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| ISSN: | 1580-2949 |
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| UDC: | 621.7.019.1 |
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| ISSN on article: | 1580-2949 |
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| COBISS.SI-ID: | 17043478 |
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| NUK URN: | URN:SI:UM:DK:IDEJ2OKT |
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| Publication date in DKUM: | 10.07.2015 |
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| Views: | 1483 |
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| Downloads: | 135 |
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| Metadata: |    |
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| Categories: | Misc.
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