Study On Shock-Absorbing Properties Of Square Tube Strengthening Structure

Arina , Zakaria (2010) Study On Shock-Absorbing Properties Of Square Tube Strengthening Structure. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Thin-walled tubular structures are commonly used as the strengthening members of a car body. The strengthening member of the vehicle body is designed in order to absorb the impact energy efficiently during collision. The effects of shock energy on tubular structure are numerically investigated under axial impact using the FEM (finite element method) program code of dynamic explicit version of ABAQUS. By installing the solid masses to the sidewall of the specimen, initial bending occurred to the specimen due to inertia force which produced by great velocity change during shock impact. In this study, rectangular solid mass that is steel SS400 was attached through aluminium alloy square tube A6063-T6. The tube was impacted against the stationary rigid plate at the velocity of 5 and 10 m/s. In order to get the best design, there were two cases was tested. The first one was square tube without solid mass and second was square tube which installing solid mass to the tube. The tube with solid mass clearly showed that the bending deformation occurs in the portion where the solid mass is attached.

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