Numerical investigation of the hardness of tire rubber material by indentation method

B. Setiyana*, C. Prabowo, J. Jamari, R. Ismail, S. Sugiyanto, E. Saputra

*Corresponding author for this work

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Hardness is an important mechanical property to express the rubber material's properties. The hardness is closely related to elastic modulus value that is usually obtained by indentation technique. In elastic modulus investigation, the indentation method is more practical to be applied than tensile test method. Analytically, due to the hyper-elastic and non-linear nature of rubber material, theoretical discussion about the rubber properties is difficult to be performed therefore a numerical method is applied. This paper discusses the investigation of the elastic modulus of tire rubber specimens by indentation method numerically and compares to the tensile test method experimentally. Analysis was carried out by Finite Element Analysis (FEA) and two types of vulcanized rubber were analysed. The rubber analysed are often called as a hard compound (vulcanized 1) and soft compound (vulcanized 2) that is commonly used for tires. Indentation modelling was carried out to follow ASTM D 1415-88. Mooney-Rivlin model for Strain Energy Function (SEF) was applied to describe the material's behaviour. The analysis shows that the results of the indentation method are close to the results of the tensile test method.

Original languageEnglish
Article number012020
JournalJournal of physics: Conference series
Issue number1
Publication statusPublished - 28 May 2020
Event1st Borobudur International Symposium on Applied Science and Engineering, BIS-ASE 2019 - Universitas Muhammadiyah Magelang, Magelang, Indonesia
Duration: 16 Oct 201916 Oct 2019
Conference number: 1


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