Experimental methods for the characterization of fatigue in microstructures
The mechanical fatigue behavior of gold microbeams is analyzed. Dedicated devices have been designed and built able to produce alternate loading on gold specimens; the electrostatic actuation is used as driving force. Gold beams are tested under both bending and tensile alternate loadings. Results w...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2012-12-01
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| Series: | Fracture and Structural Integrity |
| Subjects: | |
| Online Access: | https://www.fracturae.com/index.php/fis/article/view/169 |
| _version_ | 1826905125041471488 |
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| author | G. De Pasquale A. Somà |
| author_facet | G. De Pasquale A. Somà |
| author_sort | G. De Pasquale |
| collection | DOAJ |
| description | The mechanical fatigue behavior of gold microbeams is analyzed. Dedicated devices have been designed and built able to produce alternate loading on gold specimens; the electrostatic actuation is used as driving force. Gold beams are tested under both bending and tensile alternate loadings. Results were used to plot S-N curves and fatigue Goodman-Smith diagram in order to estimate the fatigue limit of the material in presence of mean and alternate stress conditions. The surface topography evolution is studied and failure modes are discussed. |
| first_indexed | 2025-02-17T08:23:01Z |
| format | Article |
| id | doaj.art-dbf5d94e348d4332b8a840e4c99da3d5 |
| institution | Directory Open Access Journal |
| issn | 1971-8993 |
| language | English |
| last_indexed | 2025-02-17T08:23:01Z |
| publishDate | 2012-12-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj.art-dbf5d94e348d4332b8a840e4c99da3d52025-01-02T23:00:55ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932012-12-0172310.3221/IGF-ESIS.23.12Experimental methods for the characterization of fatigue in microstructuresG. De Pasquale0A. Somà1Department of Mechanical and Aerospace Engineering, Politecnico di Torino Corso Duca degli Abruzzi 24, 10129 Torino (Italy)Department of Mechanical and Aerospace Engineering, Politecnico di Torino Corso Duca degli Abruzzi 24, 10129 Torino (Italy)The mechanical fatigue behavior of gold microbeams is analyzed. Dedicated devices have been designed and built able to produce alternate loading on gold specimens; the electrostatic actuation is used as driving force. Gold beams are tested under both bending and tensile alternate loadings. Results were used to plot S-N curves and fatigue Goodman-Smith diagram in order to estimate the fatigue limit of the material in presence of mean and alternate stress conditions. The surface topography evolution is studied and failure modes are discussed.https://www.fracturae.com/index.php/fis/article/view/169MEMS |
| spellingShingle | G. De Pasquale A. Somà Experimental methods for the characterization of fatigue in microstructures Fracture and Structural Integrity MEMS |
| title | Experimental methods for the characterization of fatigue in microstructures |
| title_full | Experimental methods for the characterization of fatigue in microstructures |
| title_fullStr | Experimental methods for the characterization of fatigue in microstructures |
| title_full_unstemmed | Experimental methods for the characterization of fatigue in microstructures |
| title_short | Experimental methods for the characterization of fatigue in microstructures |
| title_sort | experimental methods for the characterization of fatigue in microstructures |
| topic | MEMS |
| url | https://www.fracturae.com/index.php/fis/article/view/169 |
| work_keys_str_mv | AT gdepasquale experimentalmethodsforthecharacterizationoffatigueinmicrostructures AT asoma experimentalmethodsforthecharacterizationoffatigueinmicrostructures |