Numerical and experimental study of crashworthiness parameters of honeycomb structures |
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| Affiliation: | 1. School of Traffic & Transportation Engineering, Central South University, Changsha, Hunan, China;2. Key Laboratory of Traffic Safety on Track, Ministry of Education, Changsha, Hunan, China;3. Department of Mechanical Engineering, University of New Orleans, USA;4. Department of Civil Engineering, University of Salerno, 84084 Fisciano (SA), Italy;1. State Key Laboratory for Turbulence and Complex Systems, College of Engineering, Peking University, Beijing 100871, China;2. National Center for Nanoscience and Technology, Beijing 100190, China;3. Beijing Institute of Technology, Beijing 100081, China;4. Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China;1. Istanbul Technical University, Department of Mechanical Engineering, 34437 Beyoglu, Istanbul, Turkey;2. Ford Automotive Industry Inc, R&D Center, Powertrain Durability Division, 34485 Sancaktepe, Istanbul, Turkey;1. IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1040-001 Lisboa, Portugal;2. Department of Industrial Design, National Institute of Technology, Rourkela, India;3. Intelligent Manufacturing Key Laboratory of Ministry of Education, Shantou University, Shantou, China;1. Department of Mechanics, Huazhong University of Science and Technology, Wuhan 430074, Hubei, PR China;2. School of Mechanical Engineering and Automation, Wuhan Textile University, Wuhan 430073, Hubei, PR China;3. Hubei Key Laboratory of Engineering Structural Analysis and Safety Assessment, Luoyu Road 1037, Wuhan 430074, PR China |
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| Abstract: | Crashworthiness parameters of aluminum hexagonal honeycomb structures under impact loads are investigated by using finite element methods and conducting experiments. To validate the finite element models, numerical results are compared with experimental measurements and theoretical results reported in literature. In numerical simulations of honeycomb structures, out-of-plane loads are considered while the aluminum foil thickness, cell side size, cell expanding angle, impact velocity and mass are varying, and dynamic behavior and crashworthiness parameters are examined. It is observed that there are good agreements between numerical, experimental and theoretical results. Numerical simulations predict that crashworthiness parameters depend on cell specification and foil thickness of the honeycomb structure and are independent of impact mass and velocity. |
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| Keywords: | Honeycomb structure Crashworthiness parameters Finite element method Impact load Energy absorber |
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