The role of punch eccentricity in small punch testing
The small punch testing technique under quasi-static loading was examined in the view of punch eccentricity role. It might arise especially when the ball is used as the penetrating tool, instead of hemispherical-ended punch. The austenitic stainless steel AISI 316L was chosen to execute several vari...
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| Format: | Article |
| Language: | English |
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Ubiquity Press
2018-09-01
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| Series: | Ubiquity Proceedings |
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| Online Access: | https://account.ubiquityproceedings.com/index.php/up-j-up/article/view/43 |
| _version_ | 1797352516195713024 |
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| author | F. Šebek P. Dymáček P. Kubík J. Hůlka J. Petruška |
| author_facet | F. Šebek P. Dymáček P. Kubík J. Hůlka J. Petruška |
| author_sort | F. Šebek |
| collection | DOAJ |
| description | The small punch testing technique under quasi-static loading was examined in the view of punch eccentricity role. It might arise especially when the ball is used as the penetrating tool, instead of hemispherical-ended punch. The austenitic stainless steel AISI 316L was chosen to execute several various “large scale” tests in order to calibrate the multi-linear stress–strain relationship along with the ductile fracture criterion KHPS. All the calibration procedure was performed without using the small punch testing. Then, the model was applied to small punch tests to observe the prediction ability when compared to real small punch experiments. Consequently, a numerical study was conducted to see the role of eccentricity in the case of 2 and 2.5 mm ball diameters used as the penetrating tool. The magnitude of eccentricity up to 0.3 mm was numerically tested. The results showed negligible role of eccentricity for 2 mm ball diameter and minor role for 2.5 mm diameter and studied material. |
| first_indexed | 2024-03-08T13:17:44Z |
| format | Article |
| id | doaj.art-bed14c2a9b924b349a1d5c859711b7fe |
| institution | Directory Open Access Journal |
| issn | 2631-5602 |
| language | English |
| last_indexed | 2024-03-08T13:17:44Z |
| publishDate | 2018-09-01 |
| publisher | Ubiquity Press |
| record_format | Article |
| series | Ubiquity Proceedings |
| spelling | doaj.art-bed14c2a9b924b349a1d5c859711b7fe2024-01-18T05:31:39ZengUbiquity PressUbiquity Proceedings2631-56022018-09-011S1434310.5334/uproc.4336The role of punch eccentricity in small punch testingF. Šebek0P. Dymáček1P. Kubík2J. Hůlka3J. Petruška4Institute of Solid Mechanics, Mechatronics and Biomechanics, Faculty of Mechanical Engineering, Brno University of Technology, Technická 2896/2, 616 69 Brno, Czech RepublicCEITEC IPM, Institute of Physics of Materials, Academy of Sciences of the Czech Republic, Žižkova 22, 616 62 Brno, Czech RepublicInstitute of Solid Mechanics, Mechatronics and Biomechanics, Faculty of Mechanical Engineering, Brno University of Technology, Technická 2896/2, 616 69 Brno, Czech RepublicInstitute of Applied Mechanics, Resslova 972/3, 602 00 Brno, Czech RepublicInstitute of Solid Mechanics, Mechatronics and Biomechanics, Faculty of Mechanical Engineering, Brno University of Technology, Technická 2896/2, 616 69 Brno, Czech RepublicThe small punch testing technique under quasi-static loading was examined in the view of punch eccentricity role. It might arise especially when the ball is used as the penetrating tool, instead of hemispherical-ended punch. The austenitic stainless steel AISI 316L was chosen to execute several various “large scale” tests in order to calibrate the multi-linear stress–strain relationship along with the ductile fracture criterion KHPS. All the calibration procedure was performed without using the small punch testing. Then, the model was applied to small punch tests to observe the prediction ability when compared to real small punch experiments. Consequently, a numerical study was conducted to see the role of eccentricity in the case of 2 and 2.5 mm ball diameters used as the penetrating tool. The magnitude of eccentricity up to 0.3 mm was numerically tested. The results showed negligible role of eccentricity for 2 mm ball diameter and minor role for 2.5 mm diameter and studied material.https://account.ubiquityproceedings.com/index.php/up-j-up/article/view/43pressure vesselpiping steel gradesmall sample techniquedamageelastic plasticfinite element methodassociated flow ruletime independent plasticitypressure and lode dependent fracture criterionnuclear industry |
| spellingShingle | F. Šebek P. Dymáček P. Kubík J. Hůlka J. Petruška The role of punch eccentricity in small punch testing Ubiquity Proceedings pressure vessel piping steel grade small sample technique damage elastic plastic finite element method associated flow rule time independent plasticity pressure and lode dependent fracture criterion nuclear industry |
| title | The role of punch eccentricity in small punch testing |
| title_full | The role of punch eccentricity in small punch testing |
| title_fullStr | The role of punch eccentricity in small punch testing |
| title_full_unstemmed | The role of punch eccentricity in small punch testing |
| title_short | The role of punch eccentricity in small punch testing |
| title_sort | role of punch eccentricity in small punch testing |
| topic | pressure vessel piping steel grade small sample technique damage elastic plastic finite element method associated flow rule time independent plasticity pressure and lode dependent fracture criterion nuclear industry |
| url | https://account.ubiquityproceedings.com/index.php/up-j-up/article/view/43 |
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