IJRME – Volume 4 Issue 1 Paper 4

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ENERGY ABSORPTION OF RECTANGULAR AND HEXAGONAL SECTION AUTOMOTIVE CRUSH CAN FOR QUASI STATIC AXIAL LOADING

Author’s Name :  Arun J Pawar | S Y Gajjal

Volume 04 Issue 01  Year 2017  ISSN No:  2349-3860  Page no: 15-17

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Abstract:

In the event of crash, the specific structures such as bumper, crush can and front end carrier undergo plastic deformation. The frontal crash is the most dangerous situation and for which the crash energy management in frontal crumple zone of the automotive body is one of the key elements for the design of automotive structure. Thus, the design and analysis of structural behaviour of crumple zone components is of prime importance. Improving the energy absorption characteristics reduce the magnitude of the force transferred to the occupant compartment. Quasi static analysis and dynamic analysis are used for studying the crushing behaviour of the crush cans. The selection of cross sectional shape and material is very important for obtaining maximum performance of crush can. Crush cans are used as replaceable energy absorbing devices. This work is concerned with comparative study of rectangular and hexagonal crush can under quasi static axial loading. The hexagonal section crush can show better performance than rectangular section. FEA results are obtained using LS-DYNA as solver.

Keywords:

Specific energy absorption (SEA);Mean load,Peak load,Crush can

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