Probabilistic finite element analysis of fatigue life of additively manufactured clasp
The present study was aimed to develop a probabilistic finite element method (FEM) that predicts the variability in the fatigue life of additively manufactured clasp so that it can be used as a virtual test in the design phase before manufacturing. Titanium alloy (Ti-6Al-4V) clasp with integrated chucking part, which was designed for experimental fatigue test to validate the computational method, was investigated. To predict the lower bound, an initial spherical defect was assumed in the region where stress concentration was predicted. The Smith-Watson-Topper (SWT) method, Bäumel & Seeger rule, elasto-plastic FEM, and zooming FEM were used. The influence of assumed initial defect on the fatigue life was significant, and the large variability in the fatigue life was predicted. This study demonstrated that the proposed practical computational method can simulate the large variability in the fatigue life of titanium alloy clasp, which is useful in its design before manufacturing.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:41 |
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| Enthalten in: |
Dental materials journal - 41(2022), 2 vom: 01. Apr., Seite 286-294 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Odaka, Kento [VerfasserIn] |
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| Links: |
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| Themen: |
Additive manufacturing |
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| Anmerkungen: |
Date Completed 05.04.2022 Date Revised 31.05.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.4012/dmj.2021-174 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM337809615 |
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| 520 | |a The present study was aimed to develop a probabilistic finite element method (FEM) that predicts the variability in the fatigue life of additively manufactured clasp so that it can be used as a virtual test in the design phase before manufacturing. Titanium alloy (Ti-6Al-4V) clasp with integrated chucking part, which was designed for experimental fatigue test to validate the computational method, was investigated. To predict the lower bound, an initial spherical defect was assumed in the region where stress concentration was predicted. The Smith-Watson-Topper (SWT) method, Bäumel & Seeger rule, elasto-plastic FEM, and zooming FEM were used. The influence of assumed initial defect on the fatigue life was significant, and the large variability in the fatigue life was predicted. This study demonstrated that the proposed practical computational method can simulate the large variability in the fatigue life of titanium alloy clasp, which is useful in its design before manufacturing | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Additive manufacturing | |
| 650 | 4 | |a Clasp | |
| 650 | 4 | |a Fatigue life | |
| 650 | 4 | |a Finite element method | |
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| 700 | 1 | |a Takizawa, Hideo |e verfasserin |4 aut | |
| 700 | 1 | |a Matsunaga, Satoru |e verfasserin |4 aut | |
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