Yusof, Nur Azniza (2017) Design Analysis Of A Rectangular Aluminum Crash Box For Frontal Accident Protection. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)
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Design Analysis Of A Rectangular Aluminum Crash Box For Frontal Accident Protection.pdf - Submitted Version Download (401kB) |
Abstract
Crash box equipped at the front end of a car,is one of the most important automotive parts for crash energy absorption.In the case of frontal crash accident,it is expected to be collapsed with absorbing crash energy prior to other body parts so that the damage of the main cabin frame is minimized and passengers may be saved.In this report,crash box geometry is studied for the energy absorption and a rectangular crash box is modelled in SolidWorks software.The crash test components were impactor,crash box,and fixed support.Impactor is modelled as a rigid body,while fixed support and crash box material as bilinear isotropic hardening and are modelled as flexible body of its stiffness behavior.An automobile crash box with a velocity impact is studied by conducting finite element analysis and is simulated using Explicit Dynamics module in ANSYS software.The purpose is to analyze the deformation behavior and crash energy absorption for the best crashworthiness performance. Crash box height of 100 mm and frontal crash velocity of 720 km/h is computed by equalizing the kinetic energy of the modelled geometry with the kinetic energy of a real-time crash experiment which the velocity is 64 km/h.Crash box material of Aluminum Alloy NL is used.The results present a comparison of structures deformation and analyze of energy absorbed values during the impact.By varying the geometry parameter of the crash box which is cross-sectional area,different crash box models are proposed and simulated for the maximum energy absorption thereby to obtain the maximum protection to the passenger by reducing the impact force.
| Item Type: | Final Year Project (Project Report) |
|---|---|
| Uncontrolled Keywords: | Crash injuries,Automobiles -- > Crashworthiness, Motor vehicles -- > Crashworthiness,Automobiles -- > Bumpers,Automobiles -- > Bodies -- > Materials. |
| Subjects: | T Technology > T Technology (General) T Technology > TL Motor vehicles. Aeronautics. Astronautics |
| Divisions: | Faculty of Manufacturing Engineering > Department of Manufacturing Design |
| Depositing User: | Mohd. Nazir Taib |
| Date Deposited: | 13 Aug 2018 04:10 |
| Last Modified: | 13 Aug 2018 04:10 |
| URI: | http://digitalcollection.utem.edu.my/id/eprint/21339 |
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