Volume 20, Issue 6 (June 2020)
Modares Mechanical Engineering 2020, 20(6): 1611-1623 |
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Hoseini V, Shariati M, Mahdizadeh Rokhi M. Collapse Behaviour and Energy Absorption of Hemispherical and Conical Shells under Impact Loading Considering Different Damage Models. Modares Mechanical Engineering 2020; 20 (6) :1611-1623
URL: http://mme.modares.ac.ir/article-15-36057-en.html
URL: http://mme.modares.ac.ir/article-15-36057-en.html
1- Mechanical Engineering Department, Engineering Faculty, Ferdowsi University of Mashhad, Mashhad, Iran
2- Mechanical Engineering Department, Engineering Faculty, Ferdowsi University of Mashhad, Mashhad, Iran ,mshariati44@um.ac.ir
3- Mechanical & Mechatronics Engineering Faculty, Shahrood University of Technology, Shahrood, Iran
2- Mechanical Engineering Department, Engineering Faculty, Ferdowsi University of Mashhad, Mashhad, Iran ,
3- Mechanical & Mechatronics Engineering Faculty, Shahrood University of Technology, Shahrood, Iran
Abstract: (3604 Views)
In this research, the behavior of conical and hemispherical shells, made of steel and aluminum, respectively, subject to impact loading has been investigated using experimental and numerical methods. The energy absorption capacity of these adsorbers has been calculated and the effect of foam injection on the collapse behavior and energy absorption capacity of aluminum hemispherical shells has been determined. The effect of geometrical parameters on the collapse behavior and adsorption capacity of steel conical adsorbers has also been investigated. Numerical simulations have been performed using the Abaqus finite element software and the results have been compared with the results of the experiments. In Numerical analysis, three damage models, Johnson-Cook, GTN, and modified Rousselier have been used. The Johnson-Cook damage model is available in Abaqus software but the GTN and the modified Rousselier damage models have been created through programming in Abaqus software. The results show that the modified Rousselier damage model is more accurate than the other damage models. Also, in this research, the effect of thickness of conical shells on their efficiency has been investigated and it becomes clear that increasing the thickness of absorber increases efficiency. In addition, foam injection does not a positive effect on the hemispherical absorber performance.
Article Type: Original Research |
Subject:
Damage Mechanics
Received: 2019/08/31 | Accepted: 2020/02/16 | Published: 2020/06/20
Received: 2019/08/31 | Accepted: 2020/02/16 | Published: 2020/06/20
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