Analytical Modeling of Axial Collapse of Circular Hybrid Tubes

Document Type : Research Paper


1 Assistant Professor, Department of Mechanical Engineering, Damavand Branch, Islamic Azad University, Damavand, Iran

2 Department of Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran


In this paper, considering symmetric collapse mode for hybrid tubes, and using Tsai-Hill fracture criterion to take into account the off-axis strength of an orthotropic lamina, an analytical model is extended and an expression is derived for mean crushing load and fold lengths of circular hybrid tubes. In this model, the influences of the geometrical dimensions including diameter, thickness of metal and composite wall, fiber ply orientation and material properties are studied on the mean crushing load and fold lengths. The validation with the previously published results provides reasonably good agreement.


Main Subjects

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