Ultrasonic fatigue testing device under biaxial bending
A new fatigue testing device has been developed to test specimens under biaxial loading at 20 kHz. A flat smooth specimen with a disc geometry is placed on a torus frame and cyclically loaded at the center of its upper face. Disc bending generates a biaxial proportional stress state at the center...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2016-07-01
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| Series: | Fracture and Structural Integrity |
| Subjects: | |
| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero37/numero_37_art_07.pdf |
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| _version_ | 1841561250436218880 |
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| author | C. Brugger T. Palin-Luc P. Osmond M. Blanc |
| author_facet | C. Brugger T. Palin-Luc P. Osmond M. Blanc |
| author_sort | C. Brugger |
| collection | DOAJ |
| description | A new fatigue testing device has been developed to test specimens under biaxial loading at 20 kHz.
A flat smooth specimen with a disc geometry is placed on a torus frame and cyclically loaded at the center of its
upper face. Disc bending generates a biaxial proportional stress state at the center of the lower face. Any
positive loading ratio can be applied. A cast aluminum alloy (used to produce cylinder heads) has been tested
under biaxial bending using this device in order to determine its fatigue strength at 109 cycles under high
hydrostatic pressure. Self-heating is moderate but macroscopic fatigue cracks after testing are very long. First
results in VHCF regime are consistent with literature results obtained under similar stress state but in HCF
regime and at 20 Hz. |
| format | Article |
| id | doaj-art-3f6d65863929415ca3d52ff7a77388e5 |
| institution | Kabale University |
| issn | 1971-8993 1971-8993 |
| language | English |
| publishDate | 2016-07-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-3f6d65863929415ca3d52ff7a77388e52025-01-03T01:50:56ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89931971-89932016-07-011037465110.3221/IGF-ESIS.37.07Ultrasonic fatigue testing device under biaxial bendingC. Brugger0T. Palin-Luc1P. Osmond2M. Blanc3Universite de Bordeaux,FranceUniversite de Bordeaux,FrancePSA Peugeot Citroën,FrancePSA Peugeot Citroën,FranceA new fatigue testing device has been developed to test specimens under biaxial loading at 20 kHz. A flat smooth specimen with a disc geometry is placed on a torus frame and cyclically loaded at the center of its upper face. Disc bending generates a biaxial proportional stress state at the center of the lower face. Any positive loading ratio can be applied. A cast aluminum alloy (used to produce cylinder heads) has been tested under biaxial bending using this device in order to determine its fatigue strength at 109 cycles under high hydrostatic pressure. Self-heating is moderate but macroscopic fatigue cracks after testing are very long. First results in VHCF regime are consistent with literature results obtained under similar stress state but in HCF regime and at 20 Hz.http://www.gruppofrattura.it/pdf/rivista/numero37/numero_37_art_07.pdfGigacycle fatigueBiaxial loadingBendingCast aluminum alloyUltrasonic testing machine |
| spellingShingle | C. Brugger T. Palin-Luc P. Osmond M. Blanc Ultrasonic fatigue testing device under biaxial bending Fracture and Structural Integrity Gigacycle fatigue Biaxial loading Bending Cast aluminum alloy Ultrasonic testing machine |
| title | Ultrasonic fatigue testing device under biaxial bending |
| title_full | Ultrasonic fatigue testing device under biaxial bending |
| title_fullStr | Ultrasonic fatigue testing device under biaxial bending |
| title_full_unstemmed | Ultrasonic fatigue testing device under biaxial bending |
| title_short | Ultrasonic fatigue testing device under biaxial bending |
| title_sort | ultrasonic fatigue testing device under biaxial bending |
| topic | Gigacycle fatigue Biaxial loading Bending Cast aluminum alloy Ultrasonic testing machine |
| url | http://www.gruppofrattura.it/pdf/rivista/numero37/numero_37_art_07.pdf |
| work_keys_str_mv | AT cbrugger ultrasonicfatiguetestingdeviceunderbiaxialbending AT tpalinluc ultrasonicfatiguetestingdeviceunderbiaxialbending AT posmond ultrasonicfatiguetestingdeviceunderbiaxialbending AT mblanc ultrasonicfatiguetestingdeviceunderbiaxialbending |