PENGARUH VARIASI GEOMETRI CRASH BOX 2 SEGMEN TERHADAP KEMAMPUAN MENYERAP ENERGI IMPAK DENGAN SIMULASI KOMPUTER
ABSTRACT: Crash box is a
passive safety system placed on four wheeled vehicle, the purposes it to absorb
the impact energy due to bumper no longer able hold the impact happened. There
have been many studies done with the type of segment, so it needs development
especially segment additional, and in this study of two segments of crash box
is expected to absorb more energy, the additional of this segment purposes to
increase the critical load so can be reduced the buckling. The method in this
study used is ANSYS Workbench 14.5 finite element software. The variables used
are the section type crash box geometry of circle, square, and hexagon, with
cross section area of 1492 mm2, 1771 mm2, and 2045 mm2 and uniform height of
100 mm, the material used is aluminum AA 7003-T7. Simulation process begins
when the impactor collision with speed 16 km/hour. From the research result is
that moment inertia of the cross section area were able an important role in
the absorption of impact energy, the cross section area 2045 mm2 were able to
absorb the higher energy for each type of crash box, and the section of hexagon
term that can absorb highest impact energy.
Penulis: Jatmiko Awali, Moch.
Agus Choiron, Yudy Surya Irawan
Kode Jurnal: jptmesindd140191
