Indonesia Conference Directory

At present the bus is a means of transportation which is believed to be able to overcome the problem of mass transportation and is expected to reduce the density of traffic flow. The reality in the field of traffic accidents involving buses often occurs, including buses that have slips, rolled over, collided with other vehicles or fellow buses from the front, rear and side, and so on. The choice of material in the frame structure must be considered, where the material must have characteristics that are light, strong against impact, because it will experience static and dynamic loading. This is intended so that there is no structural failure at any time. In this study, a side crash simulation was carried out on the frame structure of a medium-sized electric bus using 3 different types of material. The first material is the standard material of JIS 3445 STKM 13A. Then after simulating with a safe standard material, a simulation with alternative materials is carried out namely Aluminum 6005A T6 and Aluminum 6061 T6. The choice of alternative materials aims to reduce the weight of the vehicle and still pay attention to the security factor in the form of residual space. In the three types of simulated materials, the Baja JIS 3445 STKM 13A material weighs 2456 Kg, displaces 96.72 mm and voltage 215.5 MPa. Then the material of Aluminum 6005A T6 has a weight of 1122 Kg, displacement of 109.8 mm, and a voltage of 230.5 MPa. While the material of Aluminum 6061 T6 has a weight of 941.9 kg, displacement of 103 mm, and voltage of 270.5 MPa. From the results of the simulations that have been made, the recommendations for the material that can be used on a medium size electric bus are Aluminum 6061 T6.