Akademik Veri Yönetim Sistemi
9th International Black Sea Coastline Countries Scientific Research Conference, Ankara, Türkiye, 10 - 11 Ağustos 2023, ss.140-154
Leaf springs are the oldest suspension components used in both passenger and commercial
vehicles. Leaf springs absorb the shocks caused by vertical vibration and unstabilized
loads coming from the road, store the energy and allow a comfortable ride with a more
flexible suspension system. The service life of the leaf spring also becomes critical at this
point due to the cyclic loading to which the leaf spring components are exposed. In this
study, AISI 4340, IS 2062 and C45 materials were used as leaf spring material and how
these materials would affect the service life of leaf springs was investigated. Leaf spring
design was designed through the CATIA program, and static and fatigue analysis were
carried out using the finite element method in the ANSYS program. Equivalent stress,
deformation, and life cycle values obtained because of the analysis are presented in the
results of the study. AISI 4340 steel has the least amount of total deformation among the
three materials, and AISI 4340 material has reached lower values by 0.41%, although the
equivalent stress values are close to AISI 4340 material and C45 steel. In the comparison
of life(cycle) values, it is revealed that the design with AISI 4340 material has 11 times
more life value than the C45 material design, and 44 times more than IS 2062 material
design. When both static and fatigue analysis results are examined, it is concluded that
AISI 4340 material is more usable in leaf springs compared to the other two materials.