Prediction of Hot Formability of AA7075 Aluminum Alloy Sheet
A uniaxial high-temperature tensile test of an AA7075 aluminum alloy sheet was conducted using an established induction heating test system. Five different types of specimens were designed to obtain the stress–strain curves at different forming temperatures and strain rates so as to construct and mo...
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| Format: | Article |
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MDPI AG
2023-01-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/2/231 |
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| author | Heyuan Wang Xiaolong Sui Yingping Guan |
| author_facet | Heyuan Wang Xiaolong Sui Yingping Guan |
| author_sort | Heyuan Wang |
| collection | DOAJ |
| description | A uniaxial high-temperature tensile test of an AA7075 aluminum alloy sheet was conducted using an established induction heating test system. Five different types of specimens were designed to obtain the stress–strain curves at different forming temperatures and strain rates so as to construct and modify the Johnson–Cook constitutive model. The uniaxial tensile test of different stress states was numerically simulated using ABAQUS finite element software, and the stress triaxiality and equivalent fracture strain parameters were extracted. The Johnson–Cook ductile fracture model was constructed, and an error evaluation scheme was designed to determine the best failure parameter combination. Based on the obtained Johnson–Cook ductile fracture model, finite element models of different strain paths were constructed, and theoretical forming limit curves at different temperatures and strain rates were obtained. The results of the Nakazima test and finite element simulation are mostly consistent, which confirms the reliability of the constructed fracture model and theoretical forming limit curves. |
| first_indexed | 2024-03-11T08:25:47Z |
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| id | doaj.art-efb4d294ad9e4a6e880702f77d5d92ac |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-11T08:25:47Z |
| publishDate | 2023-01-01 |
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| spelling | doaj.art-efb4d294ad9e4a6e880702f77d5d92ac2023-11-16T22:06:30ZengMDPI AGMetals2075-47012023-01-0113223110.3390/met13020231Prediction of Hot Formability of AA7075 Aluminum Alloy SheetHeyuan Wang0Xiaolong Sui1Yingping Guan2Key Laboratory of Advanced Forging & Stamping Technology and Science of Ministry of Education, Yanshan University, Qinhuangdao 066004, ChinaGoertek Microelectronics Company Limited, Weifang 261000, ChinaKey Laboratory of Advanced Forging & Stamping Technology and Science of Ministry of Education, Yanshan University, Qinhuangdao 066004, ChinaA uniaxial high-temperature tensile test of an AA7075 aluminum alloy sheet was conducted using an established induction heating test system. Five different types of specimens were designed to obtain the stress–strain curves at different forming temperatures and strain rates so as to construct and modify the Johnson–Cook constitutive model. The uniaxial tensile test of different stress states was numerically simulated using ABAQUS finite element software, and the stress triaxiality and equivalent fracture strain parameters were extracted. The Johnson–Cook ductile fracture model was constructed, and an error evaluation scheme was designed to determine the best failure parameter combination. Based on the obtained Johnson–Cook ductile fracture model, finite element models of different strain paths were constructed, and theoretical forming limit curves at different temperatures and strain rates were obtained. The results of the Nakazima test and finite element simulation are mostly consistent, which confirms the reliability of the constructed fracture model and theoretical forming limit curves.https://www.mdpi.com/2075-4701/13/2/231AA7075 aluminum alloyJohnson–Cook modelfinite element simulationtheoretical forming limit curve |
| spellingShingle | Heyuan Wang Xiaolong Sui Yingping Guan Prediction of Hot Formability of AA7075 Aluminum Alloy Sheet Metals AA7075 aluminum alloy Johnson–Cook model finite element simulation theoretical forming limit curve |
| title | Prediction of Hot Formability of AA7075 Aluminum Alloy Sheet |
| title_full | Prediction of Hot Formability of AA7075 Aluminum Alloy Sheet |
| title_fullStr | Prediction of Hot Formability of AA7075 Aluminum Alloy Sheet |
| title_full_unstemmed | Prediction of Hot Formability of AA7075 Aluminum Alloy Sheet |
| title_short | Prediction of Hot Formability of AA7075 Aluminum Alloy Sheet |
| title_sort | prediction of hot formability of aa7075 aluminum alloy sheet |
| topic | AA7075 aluminum alloy Johnson–Cook model finite element simulation theoretical forming limit curve |
| url | https://www.mdpi.com/2075-4701/13/2/231 |
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