Application of Different Hill’s Yield Criteria to Predict Limit Strains for Aerospace Titanium and Aluminum Sheet Alloys
More recently, Titanium and aluminum alloys are gaining more interests to be implemented in hydro-forming applications. It is necessary to predict forming limits for these sheet alloys. Forming limits play an important role in metal forming processes. Forming limit diagrams, present the limit strain...
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| Format: | Article |
| Language: | English |
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Islamic Azad University-Isfahan (Khorasgan) Branch
2014-03-01
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| Series: | International Journal of Advanced Design and Manufacturing Technology |
| Online Access: | https://admt.isfahan.iau.ir/article_534870_094ae2b6d07324657c011c684eda3da2.pdf |
| _version_ | 1797657254771556352 |
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| author | Milad Janbakhsh S. M. R. Loghmanian Faramarz Djavanroodi |
| author_facet | Milad Janbakhsh S. M. R. Loghmanian Faramarz Djavanroodi |
| author_sort | Milad Janbakhsh |
| collection | DOAJ |
| description | More recently, Titanium and aluminum alloys are gaining more interests to be implemented in hydro-forming applications. It is necessary to predict forming limits for these sheet alloys. Forming limits play an important role in metal forming processes. Forming limit diagrams, present the limit strains for various linear strain paths. In other hand, forming limit curve (FLC), illustrates localized formability for sheet metals under proportional loadings and are known as a powerful tool for trouble-shooting in sheet metal forming processes. In this study, mechanical properties of Ti-6Al-4V titanium sheets, AA7075-T6 and AA2024-T3 aluminum sheets are investigated through the uni-axial tensile test. Anisotropy coefficients as well as work-hardening exponent resulted from tensile test were used to theoretically prediction and numerical simulations of limit strains. For the theoretical prediction of the forming limit curves, several constitutive models were implemented. Several Hill’s yield criteria combined with Swift equation and empirical equation proposed by NADDRG were accomplished to predict the FLDs. Results showed that calculated numerical results are in good agreement with the predicted theoretical data when Hill93-Swift is the instability criteria used. |
| first_indexed | 2024-03-11T17:41:52Z |
| format | Article |
| id | doaj.art-5b7c6ec7466a4296803fe6d6de2d316a |
| institution | Directory Open Access Journal |
| issn | 2252-0406 2383-4447 |
| language | English |
| last_indexed | 2024-03-11T17:41:52Z |
| publishDate | 2014-03-01 |
| publisher | Islamic Azad University-Isfahan (Khorasgan) Branch |
| record_format | Article |
| series | International Journal of Advanced Design and Manufacturing Technology |
| spelling | doaj.art-5b7c6ec7466a4296803fe6d6de2d316a2023-10-18T09:36:41ZengIslamic Azad University-Isfahan (Khorasgan) BranchInternational Journal of Advanced Design and Manufacturing Technology2252-04062383-44472014-03-0171534870Application of Different Hill’s Yield Criteria to Predict Limit Strains for Aerospace Titanium and Aluminum Sheet AlloysMilad Janbakhsh0S. M. R. Loghmanian1Faramarz Djavanroodi2Center of Applied Science and Technology, Jame Eslami Kargaran, Esfahan, Iran E-mail: milad.janbakhsh@gmail.comDepartment of Engineering, Islamic Azad University, Mobarakeh Branch, IranCollege of Engineering, Qassim University, Saudi ArabiaMore recently, Titanium and aluminum alloys are gaining more interests to be implemented in hydro-forming applications. It is necessary to predict forming limits for these sheet alloys. Forming limits play an important role in metal forming processes. Forming limit diagrams, present the limit strains for various linear strain paths. In other hand, forming limit curve (FLC), illustrates localized formability for sheet metals under proportional loadings and are known as a powerful tool for trouble-shooting in sheet metal forming processes. In this study, mechanical properties of Ti-6Al-4V titanium sheets, AA7075-T6 and AA2024-T3 aluminum sheets are investigated through the uni-axial tensile test. Anisotropy coefficients as well as work-hardening exponent resulted from tensile test were used to theoretically prediction and numerical simulations of limit strains. For the theoretical prediction of the forming limit curves, several constitutive models were implemented. Several Hill’s yield criteria combined with Swift equation and empirical equation proposed by NADDRG were accomplished to predict the FLDs. Results showed that calculated numerical results are in good agreement with the predicted theoretical data when Hill93-Swift is the instability criteria used.https://admt.isfahan.iau.ir/article_534870_094ae2b6d07324657c011c684eda3da2.pdf |
| spellingShingle | Milad Janbakhsh S. M. R. Loghmanian Faramarz Djavanroodi Application of Different Hill’s Yield Criteria to Predict Limit Strains for Aerospace Titanium and Aluminum Sheet Alloys International Journal of Advanced Design and Manufacturing Technology |
| title | Application of Different Hill’s Yield Criteria to Predict Limit Strains for Aerospace Titanium and Aluminum Sheet Alloys |
| title_full | Application of Different Hill’s Yield Criteria to Predict Limit Strains for Aerospace Titanium and Aluminum Sheet Alloys |
| title_fullStr | Application of Different Hill’s Yield Criteria to Predict Limit Strains for Aerospace Titanium and Aluminum Sheet Alloys |
| title_full_unstemmed | Application of Different Hill’s Yield Criteria to Predict Limit Strains for Aerospace Titanium and Aluminum Sheet Alloys |
| title_short | Application of Different Hill’s Yield Criteria to Predict Limit Strains for Aerospace Titanium and Aluminum Sheet Alloys |
| title_sort | application of different hill s yield criteria to predict limit strains for aerospace titanium and aluminum sheet alloys |
| url | https://admt.isfahan.iau.ir/article_534870_094ae2b6d07324657c011c684eda3da2.pdf |
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