A comparative study on damage assessment of tubular members subjected to mass impact |
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| Institution: | 1. School of Marine Science and Technology, Newcastle University, UK;2. School of Naval Architecture and Ocean Engineering, University of Ulsan, Republic of Korea;1. Institute of Solid Mechanics, Beihang University, Beijing 100191, PR China;2. Department of Mechanical and Aerospace Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong;3. Mechanics and Material Science Research Center, Ningbo University, Ningbo 315211, Zhejiang, PR China;1. School of Civil and Resource Engineering, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia;2. Department of Civil Engineering, Curtin University, Kent Street, Bentley, WA 6102, Australia;1. University of Liège, ANAST, 1 Chemin des Chevreuils, 4000 Liège, Belgium;2. GeM Institute, UMR 6183 CNRS, ICAM Nantes, 35 Avenue du champ de Manœuvres, 44470 Carquefou, France;1. School of Civil Engineering, Yantai University, Yantai 264005, China;2. China Ministry of Education Key Laboratory of Building Safety and Energy Efficiency, College of Civil Engineering, Hunan University, Yuelu Mountain, Changsha 410082, China;3. School of Engineering and Mathematical Sciences, City University London, Northampton Square, London EC1V 0HB, UK |
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| Abstract: | This paper focuses on the behaviour of tubular members when subjected to low-velocity mass impact. Particular emphasis is given to the numerical assessment of impact damage and the classification of impact response of tubular members. Damage extents of 12 tubular frame test models were predicted and used for quantifying the modelling uncertainties of the numerical tools. USFOS and ABAQUS software packages were used with beam and shell elements, respectively. Based on the test results and the parametric studies performed, the influence of the geometrical parameters and the interaction between the local shell denting and the global beam deformation modes are discussed. A classification of the impact response of the tubular members based on their relative resistance against shell denting and beam plastic collapse load is proposed. Finally, existing analytical models for each energy dissipation mode are visited and modifications are proposed. |
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| Keywords: | Tubular member Mass impact Non-linear finite element analysis Damage assessment Simplified methods |
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