Investigation by Digital Image Correlation of Mixed Mode I and II Fracture Behavior of Metallic IASCB Specimens with Additive Manufactured Crack-Like Notch
| العنوان: | Investigation by Digital Image Correlation of Mixed Mode I and II Fracture Behavior of Metallic IASCB Specimens with Additive Manufactured Crack-Like Notch |
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| المؤلفون: | Giangiacomo Minak, Jelena Tomić, Tommaso Maria Brugo, Nebojša Bogojević, Ivo Campione, Snežana Ćirić Kostić |
| المساهمون: | Campione, Ivo, Brugo, Tommaso Maria, Minak, Giangiacomo, Tomić, Jelena Janković, Bogojević, Nebojša, Kostić, Snežana Ćirić |
| المصدر: | Metals Volume 10 Issue 3 Metals, Vol 10, Iss 3, p 400 (2020) |
| بيانات النشر: | MDPI AG, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | lcsh:TN1-997, Digital image correlation, maraging steel, Materials science, 02 engineering and technology, stress intensity factor, IASCB specimens, local stress criterium, Displacement (vector), fracture toughness, law.invention, Stress (mechanics), Fracture toughness, 0203 mechanical engineering, law, digital image correlation, Williams’ model, General Materials Science, selective laser sintering, stress intensity factors, Composite material, lcsh:Mining engineering. Metallurgy, Stress intensity factor, fracture toughne, Metals and Alloys, 021001 nanoscience & nanotechnology, Selective laser sintering, 020303 mechanical engineering & transports, IASCB specimen, Displacement field, Fracture (geology), 0210 nano-technology, additive manufacturing, mixed mode I-II |
| الوصف: | This work investigates the fracture behavior of maraging steel specimens manufactured by the selective laser sintering (SLS) technology, in which a crack-like notch (sharp notch) was directly produced during the additive manufacturing (AM) process. For the evaluation of the fracture toughness, the inclined asymmetrical semi-circular specimen subjected to three points loading (IASCB) was used, allowing to cover a wide variety of Mode I and II combinations. The effectiveness of manufacturing crack-like notches via the SLS technique in metals was evaluated by comparing the obtained experimental results with the ones obtained with pre-cracks induced by fatigue loading. The investigation was carried out by using the digital image correlation (DIC) technique, that allowed the evaluation of the full displacement fields around the crack tip. The displacement field was then used to compute the stress intensity factors (SIFs) for various combinations of Mode I and II, via a fitting technique which relies on the Williams&rsquo model for the displacement. The SIFs obtained in this way were compared to the results obtained with the conventional critical load method. The results showed that the discrepancy between the two methods reduces by ranging from Mode I to Mode II loading condition. Finally, the experimental SIFs obtained by the two methods were described by the mixed mode local stress criterium. |
| وصف الملف: | application/pdf; ELETTRONICO |
| تدمد: | 2075-4701 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bf0b7eb7cc6bae795fba0b6a7f2f4ba https://doi.org/10.3390/met10030400 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....3bf0b7eb7cc6bae795fba0b6a7f2f4ba |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20754701 |
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