Experimental Study on Mechanical Properties of Aluminum Alloys under Uniaxial Tensile Tests
The 7075 aluminum alloy (a typical Al–Zn–Mg–Cu alloy) is one of the most important engineering alloys. It is mainly used in the automotive industry, in transport and aeronautics, due to its excellent strength/weight ratio. The purpose of the present research is to model the behavior of 7075 aluminum...
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| Format: | Article |
| Language: | English |
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Universitas Indonesia
2017-07-01
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| Series: | International Journal of Technology |
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| Online Access: | http://ijtech.eng.ui.ac.id/article/view/590 |
| _version_ | 1797963551218860032 |
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| author | Olfa Daghfas Amna Znaidi Ahmed Ben Mohamed Rachid Nasri |
| author_facet | Olfa Daghfas Amna Znaidi Ahmed Ben Mohamed Rachid Nasri |
| author_sort | Olfa Daghfas |
| collection | DOAJ |
| description | The 7075 aluminum alloy (a typical Al–Zn–Mg–Cu alloy) is one of the most important engineering alloys. It is mainly used in the automotive industry, in transport and aeronautics, due to its excellent strength/weight ratio. The purpose of the present research is to model the behavior of 7075 aluminum alloy and to build an experimental database to identify the model parameters. Firstly, the paper presents an experimental device of simple tensile tests and the studied material on 7075 aluminum alloy. Thus, uniaxial tensile tests are carried out in three loading directions relative to the rolling direction. From experimental hardening curves and Lankford coefficients, the mechanical properties are extracted, particularly the various fractures owing to pronounced anisotropy relating to the material. Secondly, plastic anisotropy is then modeled using the identification strategy which depends on yield criteria, hardening and evolution laws. By smoothing experimental hardening curves in the tensile tests, a selection is made in order to choose the most appropriate hardening law for the identification of the studied material. Finally, a comparison with experimental data shows that the behavior model can successfully describe the anisotropy of the Lankford coefficient. |
| first_indexed | 2024-04-11T01:30:04Z |
| format | Article |
| id | doaj.art-1c9cc51326bf4175a9001e3e799a1282 |
| institution | Directory Open Access Journal |
| issn | 2086-9614 2087-2100 |
| language | English |
| last_indexed | 2024-04-11T01:30:04Z |
| publishDate | 2017-07-01 |
| publisher | Universitas Indonesia |
| record_format | Article |
| series | International Journal of Technology |
| spelling | doaj.art-1c9cc51326bf4175a9001e3e799a12822023-01-03T09:47:16ZengUniversitas IndonesiaInternational Journal of Technology2086-96142087-21002017-07-018466267210.14716/ijtech.v8i4.590590Experimental Study on Mechanical Properties of Aluminum Alloys under Uniaxial Tensile TestsOlfa Daghfas0Amna Znaidi1Ahmed Ben Mohamed2Rachid Nasri3National Engineering School of Tunis El Manar University, Laboratory of Applied Mechanics And Engineering (LMAI), BP 37, Le Belvedere 1002 Tunis, TunisiaNational Engineering School of Tunis El Manar University, Laboratory of Applied Mechanics And Engineering (LMAI), BP 37, Le Belvedere 1002 Tunis, TunisiaNational Engineering School of Tunis El Manar University, Laboratory of Applied Mechanics And Engineering (LMAI), BP 37, Le Belvedere 1002 Tunis, TunisiaNational Engineering School of Tunis El Manar University, Laboratory of Applied Mechanics And Engineering (LMAI), BP 37, Le Belvedere 1002 Tunis, TunisiaThe 7075 aluminum alloy (a typical Al–Zn–Mg–Cu alloy) is one of the most important engineering alloys. It is mainly used in the automotive industry, in transport and aeronautics, due to its excellent strength/weight ratio. The purpose of the present research is to model the behavior of 7075 aluminum alloy and to build an experimental database to identify the model parameters. Firstly, the paper presents an experimental device of simple tensile tests and the studied material on 7075 aluminum alloy. Thus, uniaxial tensile tests are carried out in three loading directions relative to the rolling direction. From experimental hardening curves and Lankford coefficients, the mechanical properties are extracted, particularly the various fractures owing to pronounced anisotropy relating to the material. Secondly, plastic anisotropy is then modeled using the identification strategy which depends on yield criteria, hardening and evolution laws. By smoothing experimental hardening curves in the tensile tests, a selection is made in order to choose the most appropriate hardening law for the identification of the studied material. Finally, a comparison with experimental data shows that the behavior model can successfully describe the anisotropy of the Lankford coefficient.http://ijtech.eng.ui.ac.id/article/view/590Aluminum alloyExperimental uniaxial tensile testHardening lawLankford coefficientMechanical properties |
| spellingShingle | Olfa Daghfas Amna Znaidi Ahmed Ben Mohamed Rachid Nasri Experimental Study on Mechanical Properties of Aluminum Alloys under Uniaxial Tensile Tests International Journal of Technology Aluminum alloy Experimental uniaxial tensile test Hardening law Lankford coefficient Mechanical properties |
| title | Experimental Study on Mechanical Properties of Aluminum Alloys under Uniaxial Tensile Tests |
| title_full | Experimental Study on Mechanical Properties of Aluminum Alloys under Uniaxial Tensile Tests |
| title_fullStr | Experimental Study on Mechanical Properties of Aluminum Alloys under Uniaxial Tensile Tests |
| title_full_unstemmed | Experimental Study on Mechanical Properties of Aluminum Alloys under Uniaxial Tensile Tests |
| title_short | Experimental Study on Mechanical Properties of Aluminum Alloys under Uniaxial Tensile Tests |
| title_sort | experimental study on mechanical properties of aluminum alloys under uniaxial tensile tests |
| topic | Aluminum alloy Experimental uniaxial tensile test Hardening law Lankford coefficient Mechanical properties |
| url | http://ijtech.eng.ui.ac.id/article/view/590 |
| work_keys_str_mv | AT olfadaghfas experimentalstudyonmechanicalpropertiesofaluminumalloysunderuniaxialtensiletests AT amnaznaidi experimentalstudyonmechanicalpropertiesofaluminumalloysunderuniaxialtensiletests AT ahmedbenmohamed experimentalstudyonmechanicalpropertiesofaluminumalloysunderuniaxialtensiletests AT rachidnasri experimentalstudyonmechanicalpropertiesofaluminumalloysunderuniaxialtensiletests |