Ductile fracture toughness of Al 5754-H111 alloy using essential work of fracture method
The aluminium alloy 5754 H-111 is a high-strength alloy with a remarkable corrosion resistance, particularly to seawater. It is widely used in the aerospace, marine, and automotive industries. In this work, the influence of fracture toughness methods applied to two thin aluminium sheets with differe...
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AIMS Press
2023-04-01
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| Series: | AIMS Materials Science |
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| Online Access: | https://www.aimspress.com/article/doi/10.3934/matersci.2023020?viewType=HTML |
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| author | Mohammed Y. Abdellah Nouby M. Ghazaly Al-Shimaa H. Kamal Abo-El Hagag A. Seleem G. T. Abdel-Jaber |
| author_facet | Mohammed Y. Abdellah Nouby M. Ghazaly Al-Shimaa H. Kamal Abo-El Hagag A. Seleem G. T. Abdel-Jaber |
| author_sort | Mohammed Y. Abdellah |
| collection | DOAJ |
| description | The aluminium alloy 5754 H-111 is a high-strength alloy with a remarkable corrosion resistance, particularly to seawater. It is widely used in the aerospace, marine, and automotive industries. In this work, the influence of fracture toughness methods applied to two thin aluminium sheets with different thicknesses (1.8 mm and 5 mm) was analysed. The first method was the essential work of fracture (EWF) method. It was applied at room temperature at a deformation rate of 1 mm/min with a double-edge notched tensile specimen (DENT) to measure the fracture toughness ($ {w}_{e} $) of a material with ductile damage based on the stored energy of the body. The second method was a compact tensile test (CT) to determine the linear elastic fracture toughness. For the EWF, DENTs of 4, 6, 10, 12, and 14 mm were used in the centre section. The EWF values were 273 kJ/m<sup>2</sup> and 63 kJ/m<sup>2</sup> for the aluminium sheets with thicknesses of 5 mm and 1.8 mm, respectively. The surface energies J<sub>IC</sub> determined using CT were 34.5 kJ/m<sup>2</sup> and 10.6 kJ/m<sup>2</sup>, respectively, for these sheets. These values are highly similar. Furthermore, the percentage errors of the elastic EWF were 5.8% and 8.4%, respectively, for the two thicknesses. The fractures were of the stress types in which the pits and voids grow in conjunction. In addition, both deep and isolated large dimples were well distributed in the aluminium, which is the main ductile deformation concept. |
| first_indexed | 2024-03-13T09:30:49Z |
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| language | English |
| last_indexed | 2024-03-13T09:30:49Z |
| publishDate | 2023-04-01 |
| publisher | AIMS Press |
| record_format | Article |
| series | AIMS Materials Science |
| spelling | doaj.art-0618fb260d54499a892241b3b518ca3e2023-05-26T01:37:51ZengAIMS PressAIMS Materials Science2372-04842023-04-0110237038910.3934/matersci.2023020Ductile fracture toughness of Al 5754-H111 alloy using essential work of fracture methodMohammed Y. Abdellah 0Nouby M. Ghazaly1Al-Shimaa H. Kamal 2Abo-El Hagag A. Seleem3G. T. Abdel-Jaber41. Mechanical Engineering Department, Faculty of Engineering, South Valley University, Qena, 83523, Egypt 2. Mechanical Engineering Department, College of Engineering and Islamic Architecture, Umm Al-Qura University Makkah, KSA1. Mechanical Engineering Department, Faculty of Engineering, South Valley University, Qena, 83523, Egypt1. Mechanical Engineering Department, Faculty of Engineering, South Valley University, Qena, 83523, Egypt3. Sun Miser Petroleum Company, Egypt1. Mechanical Engineering Department, Faculty of Engineering, South Valley University, Qena, 83523, Egypt4. New Assiut university of Technology (NATU), Assiut, EgyptThe aluminium alloy 5754 H-111 is a high-strength alloy with a remarkable corrosion resistance, particularly to seawater. It is widely used in the aerospace, marine, and automotive industries. In this work, the influence of fracture toughness methods applied to two thin aluminium sheets with different thicknesses (1.8 mm and 5 mm) was analysed. The first method was the essential work of fracture (EWF) method. It was applied at room temperature at a deformation rate of 1 mm/min with a double-edge notched tensile specimen (DENT) to measure the fracture toughness ($ {w}_{e} $) of a material with ductile damage based on the stored energy of the body. The second method was a compact tensile test (CT) to determine the linear elastic fracture toughness. For the EWF, DENTs of 4, 6, 10, 12, and 14 mm were used in the centre section. The EWF values were 273 kJ/m<sup>2</sup> and 63 kJ/m<sup>2</sup> for the aluminium sheets with thicknesses of 5 mm and 1.8 mm, respectively. The surface energies J<sub>IC</sub> determined using CT were 34.5 kJ/m<sup>2</sup> and 10.6 kJ/m<sup>2</sup>, respectively, for these sheets. These values are highly similar. Furthermore, the percentage errors of the elastic EWF were 5.8% and 8.4%, respectively, for the two thicknesses. The fractures were of the stress types in which the pits and voids grow in conjunction. In addition, both deep and isolated large dimples were well distributed in the aluminium, which is the main ductile deformation concept.https://www.aimspress.com/article/doi/10.3934/matersci.2023020?viewType=HTMLewfaluminium alloytensile strengthfracture toughness |
| spellingShingle | Mohammed Y. Abdellah Nouby M. Ghazaly Al-Shimaa H. Kamal Abo-El Hagag A. Seleem G. T. Abdel-Jaber Ductile fracture toughness of Al 5754-H111 alloy using essential work of fracture method AIMS Materials Science ewf aluminium alloy tensile strength fracture toughness |
| title | Ductile fracture toughness of Al 5754-H111 alloy using essential work of fracture method |
| title_full | Ductile fracture toughness of Al 5754-H111 alloy using essential work of fracture method |
| title_fullStr | Ductile fracture toughness of Al 5754-H111 alloy using essential work of fracture method |
| title_full_unstemmed | Ductile fracture toughness of Al 5754-H111 alloy using essential work of fracture method |
| title_short | Ductile fracture toughness of Al 5754-H111 alloy using essential work of fracture method |
| title_sort | ductile fracture toughness of al 5754 h111 alloy using essential work of fracture method |
| topic | ewf aluminium alloy tensile strength fracture toughness |
| url | https://www.aimspress.com/article/doi/10.3934/matersci.2023020?viewType=HTML |
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