Influence of Impact Angle and Thickness on Deformation of Axially Compressed Aluminum Square Tube
Abstract
Aluminum tubes are efficient energy absorbing components and are widely used for frameworks and reinforcement members of the structures. The effect of the axial length, cross-sectional shape and impact angle of weight on the deformation behavior were investigated. Regarding the axial length, it has changed only to a certain length, and there are few studies on it. In addition, there are few studies on the effect of aluminum square tube thickness. It is known that when the aluminum square tube is deformed, elastic deformation occurs in the entire square tube prior to plastic deformation. Since this is periodic and wavy, it seems that the axial length will have a large influence. This paper deals with the influence of impact angle on deformation of axially compressed aluminum square tube. An analysis of the dynamic deformation process of the square tube was made with a finite element method. The results shows that when the thickness of the square tube increases, the overall buckling tends to occur as the axial length increases. In addition, when the impact angle increased, there was a tendency for local deformation to occur easily.
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