Dynamic response of clamped sandwich beam with aluminium alloy foam core subjected to impact loading |
| |
| Affiliation: | 1. Key Laboratory of High Performance Ship Technology of Ministry of Education, School of Transportation, Wuhan University of Technology, Wuhan 430063, China;2. Departments of Naval Architecture, Ocean and Structural Engineering, School of Transportation, Wuhan University of Technology, Wuhan 430063, China;3. Collaborative Innovation Centre for Advanced Ship and Deep-Sea Exploration (CISSE), Wuhan 430063, China;4. Department of Mechanical and Aerospace Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong;5. Southampton Marine & Maritime Institute, University of Southampton, UK;1. State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi’an Jiaotong University, Xi’an 710049, China;2. Department of Civil and Environmental Engineering, National University of Singapore, Singapore 117576, Singapore;3. State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
| |
| Abstract: | The dynamic response of clamped sandwich beam with aluminium alloy open-cell foam core subjected to impact loading is investigated in the paper. The face sheet and the core of the sandwich beam have the different thickness. And the sandwich beam is impacted by a steel projectile in the mid-span. The impact force is recorded by using accelerometer. The results show that tensile crack and core shear are the dominant failure modes. And the impact velocity and the thickness of the face sheet and the foam core have a significant influence on the failure modes and the impact forces. Combining with the inertia effect and experimental results, the failure mechanisms of the sandwich beams are discussed. The thickness of the foam core plays an important role in the failure mechanism of the sandwich beam. In present paper, the failure of the sandwich beam with a thin core is dominated by the bending moment, while the sandwich beam with a thick core fails by bending deformation in the front face sheet and the bottom face sheet in opposite direction due to the plastic hinges in the front face sheet. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
