Advanced Steel Usage as a Crankshaft Materials in Internal Combustion Engines; A Case Study

Karaçor B. , Özcanlı M. , Akar M. A.

5th International Mediterranean Science and Engineering Congress (IMSEC 2020), Antalya, Turkey, 21 - 23 October 2020, pp.240-244

  • Publication Type: Conference Paper / Full Text
  • City: Antalya
  • Country: Turkey
  • Page Numbers: pp.240-244


This article examines the stress, deformation, and safety factor values on the crankshaft using different materials

in four-cylinder engines used for various purposes. Among the main crankshaft materials currently used are:

steel, cast iron, and austempered ductile iron. The main objectives of this study are to achieve a light crankshaft

design using ultra high strength steel (UHSS). It is also to determine the results of the analysis of the materials

used with the finite element method. The materials used in the crankshaft design should to be easily processed,

shaped, and heat treating. These materials are expected to have sufficient toughness, strength, high fatigue

resistance, and hardness. In this study, with the material change, studies on the comparison of the deformation

and equivalent stress values of the crankshaft design and weight optimization were carried out. Designs with

different materials will be compared with the finite element method. Finite Element Method (FEM) is an

enhanced modeling method that can assist in the prediction of analyzes such as stress, deformation, fatigue,

vibration, including components with complex parts. Based on this study, the total deformation value of the

stainless-steel crankshaft design is greater than the UHSS design; the maximum stress values in the UHSS

crankshaft design are higher than in the stainless-steel crankshaft design.