Development of a piezo actuator-based fatigue testing machine for miniature specimens and validation of size effects on fatigue properties
This study presents the development of a piezo actuator-based fatigue testing machine specifically for miniature specimens. The machine’s specifications include a maximum axial load of 1 kN, a maximum frequency of 15 Hz, and overall dimensions of 1,174 mm × 370 mm × 270 mm (height × length × width)....
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| Format: | Article |
| Language: | English |
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De Gruyter
2025-03-01
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| Series: | Journal of the Mechanical Behavior of Materials |
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| Online Access: | https://doi.org/10.1515/jmbm-2024-0029 |
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| author | Miyake Toru He Lei Itoh Takamoto Yamamoto Taiki Hisaka Chiaki |
| author_facet | Miyake Toru He Lei Itoh Takamoto Yamamoto Taiki Hisaka Chiaki |
| author_sort | Miyake Toru |
| collection | DOAJ |
| description | This study presents the development of a piezo actuator-based fatigue testing machine specifically for miniature specimens. The machine’s specifications include a maximum axial load of 1 kN, a maximum frequency of 15 Hz, and overall dimensions of 1,174 mm × 370 mm × 270 mm (height × length × width). Finite element analysis was employed to design two types of specimens with dimensions of 22 mm length, 8 mm width, and 2.2 mm thickness, each having a gauge length of 4 mm and diameters of 1.6 and 1.8 mm. Preliminary testing indicated that fractures initiated in the R-section of the specimen with a 1.8 mm diameter, leading to the selection of the 1.6 mm diameter specimen. To examine the influence of size on fatigue behavior, validation tests were conducted using AISI 304 and AISI 310S. Results indicated that, in the low-cycle fatigue region, size effects were negligible. However, as applied stress amplitude decreased, the fatigue life or fatigue limit of the miniature specimens surpassed that of bulk specimens. |
| format | Article |
| id | doaj-art-ec2fe6a595714a8f9e7f0ca1602fd5f3 |
| institution | DOAJ |
| issn | 2191-0243 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Journal of the Mechanical Behavior of Materials |
| spelling | doaj-art-ec2fe6a595714a8f9e7f0ca1602fd5f32025-08-20T03:01:57ZengDe GruyterJournal of the Mechanical Behavior of Materials2191-02432025-03-01341233510.1515/jmbm-2024-0029Development of a piezo actuator-based fatigue testing machine for miniature specimens and validation of size effects on fatigue propertiesMiyake Toru0He Lei1Itoh Takamoto2Yamamoto Taiki3Hisaka Chiaki4Graduate School of Science and Engineering, Ritsumeikan University, Nojihigashi, Kusatsu-shi, Shiga, 525-8577, JapanCollege of Science and Engineering, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu-shi, Shiga, 525-8577, JapanCollege of Science and Engineering, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu-shi, Shiga, 525-8577, JapanGraduate School of Science and Engineering, Ritsumeikan University, Nojihigashi, Kusatsu-shi, Shiga, 525-8577, JapanHarima Workshop, Kobe Material Testing Laboratory Co. Ltd, Hyogo, 675-0155, JapanThis study presents the development of a piezo actuator-based fatigue testing machine specifically for miniature specimens. The machine’s specifications include a maximum axial load of 1 kN, a maximum frequency of 15 Hz, and overall dimensions of 1,174 mm × 370 mm × 270 mm (height × length × width). Finite element analysis was employed to design two types of specimens with dimensions of 22 mm length, 8 mm width, and 2.2 mm thickness, each having a gauge length of 4 mm and diameters of 1.6 and 1.8 mm. Preliminary testing indicated that fractures initiated in the R-section of the specimen with a 1.8 mm diameter, leading to the selection of the 1.6 mm diameter specimen. To examine the influence of size on fatigue behavior, validation tests were conducted using AISI 304 and AISI 310S. Results indicated that, in the low-cycle fatigue region, size effects were negligible. However, as applied stress amplitude decreased, the fatigue life or fatigue limit of the miniature specimens surpassed that of bulk specimens.https://doi.org/10.1515/jmbm-2024-0029miniature specimen designpiezo actuator fatigue testing machineverification tests |
| spellingShingle | Miyake Toru He Lei Itoh Takamoto Yamamoto Taiki Hisaka Chiaki Development of a piezo actuator-based fatigue testing machine for miniature specimens and validation of size effects on fatigue properties Journal of the Mechanical Behavior of Materials miniature specimen design piezo actuator fatigue testing machine verification tests |
| title | Development of a piezo actuator-based fatigue testing machine for miniature specimens and validation of size effects on fatigue properties |
| title_full | Development of a piezo actuator-based fatigue testing machine for miniature specimens and validation of size effects on fatigue properties |
| title_fullStr | Development of a piezo actuator-based fatigue testing machine for miniature specimens and validation of size effects on fatigue properties |
| title_full_unstemmed | Development of a piezo actuator-based fatigue testing machine for miniature specimens and validation of size effects on fatigue properties |
| title_short | Development of a piezo actuator-based fatigue testing machine for miniature specimens and validation of size effects on fatigue properties |
| title_sort | development of a piezo actuator based fatigue testing machine for miniature specimens and validation of size effects on fatigue properties |
| topic | miniature specimen design piezo actuator fatigue testing machine verification tests |
| url | https://doi.org/10.1515/jmbm-2024-0029 |
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