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The elastic response of functionally graded cylindrical shells to low-velocity impact
Affiliation:1. Institute of High Performance Computing, 89-B Science Park Drive #01-05/08, The Rutherford Singapore Science Park 1, Singapore 118261, Singapore;2. Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843-3123, USA;1. Liaoning Engineering Laboratory for Deep-Sea Floating Structures, School of Naval Architecture, Dalian University of Technology, Dalian, 116024, PR China;2. State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian, 116024, PR China;3. Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai, 200240, PR China;4. FSI/CED Group, University of Southampton, Southampton, S0167QF, UK;1. Faculty of Engineering and Natural Sciences, Sabanci University, Tuzla, 34956 Istanbul, Turkey;2. Integrated Manufacturing Technologies Research and Application Center, Sabanci University, Tuzla, 34956 Istanbul, Turkey;3. Composite Technologies Center of Excellence, Sabanci University-Kordsa, Istanbul Technology Development Zone, Sanayi Mah. Teknopark Blvd. No: 1/1B, Pendik, 34906 Istanbul, Turkey;4. Department of Mechanical Engineering, Center for Aerospace Research, University of Victoria, Victoria, BC V8W 3P6, Canada;1. School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo 454003, PR China;2. LSIE-ERMAM, Faculté Polydisciplinaired’Ouarzazate, Univ. Ibn Zohr, Ouarzazate 45000, Morocco
Abstract:This paper deals with the problem of functionally graded (FG) cylindrical shells subjected to low-velocity impact by a solid striker. An analytic solution to predict the impact response of the FG cylindrical shells with one layer or multi-layers is presented. The solution includes both contact deformation and transverse shear deformation. The effective material properties of functionally graded materials (FGMs) for the cylindrical shells are assumed to vary continuously through the shell thickness and are graded in the shell thickness direction according to a volume fraction power law distribution. This is implemented in the governing equation of motion and thus included in the present solution. Four types of FG cylindrical shells composed of stainless steel and silicon nitride are configured and their transient responses to impact are computed using the present solution. The effects of the constituent volume fraction and the FGM configuration on the transient response of the laminated cylindrical shell induced by impact are examined.
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