6th International Conference on Global Practice of Multidisciplinary Scientific Studies, Lisbon, Portugal, 9 - 16 April 2024, pp.1982-2005
In the chassis, the chassis maximum shear stress and deflection under maximum load are
important criteria for design and analysis. When it comes to Formula student cars, it is necessary
to achieve a design that is both stronger and lighter than other chassis. This study describes the
design and analysis of the formula student vehicle chassis. High-strength AISI 4130 and S355
steels as well as ultra-high-strength Usibor 1500 steel were used in the vehicle chassis and the
finite element analysis (FEA) method was used for structural analysis and modal analysis for
the Formula student car chassis. Formula student car chassis design was designed with the
CATIA V5R21 program. Preloaded vibration analysis was performed on three different highstrength steels and analyzed in ten different modes. The frequency values of AISI 4130 and
S355 steels were compared and an average increase of 0.53% was observed in the results of
S355 steel. The frequency values of ultra-high strength Usibor 1500 steel were observed to
decrease by an average of 1.99% in the frequency values of S355 steel. The equivalent stress
value of AISI 4130 steel was 400 MPa, S355 steel was 395 MPa and ultra-high strength steel
was 396 MPa. Ultra-high strength steel has 2.33 times higher safety factor than AISI 4130
material and 3 times higher safety factor than S355 material. From the vibration analysis results,
the highest value in the tenth mode was obtained from S355 steel with 256.46 Hz. The lowest
deformation in the tenth mode was obtained from ultra-high strength Usibor 1500 steel with
20.263 mm