대한기계학회논문집A (Transactions of the Korean Society of Mechanical Engineers A)

  • 제28권6호
  • /
  • Pages.848-859
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  • 2004
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  • 1226-4873(pISSN)
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  • 2288-5226(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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고무부품의 유한요소해석을 위한 재료시험 및 비선형 재료물성에 관한 연구

Mechanical Testing and Nonlinear Material Properties for Finite Element Analysis of Rubber Components

  • 김완두 (한국기계연구원 구조연구부) ;
  • 김완수 (한국기계연구원 구조연구부) ;
  • 김동진 (한국기계연구원 구조연구) ;
  • 우창수 (한국기계연구원 구조연구) ;
  • 이학주 (한국기계연구원 구조연구)
  • 발행 : 2004.06.01
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초록

Mechanical testing methods to determine the material constants for large deformation nonlinear finite element analysis were demonstrated for natural rubber. Uniaxial tension, uniaxial compression, equi-biaxial tension and pure shear tests of rubber specimens are performed to achieve the stress-strain curves. The stress-strain curves are obtained after between 5 and 10 cycles to consider the Mullins effect. Mooney and Ogden strain-energy density functions, which are typical form of the hyperelastic material, are determined and compared with each other. The material constants using only uniaxial tension data are about 20% higher than those obtained by any other test data set. The experimental equations of shear elastic modulus on the hardness and maximum strain are presented using multiple regression method. Large deformation finite element analysis of automotive transmission mount using different material constants is performed and the load-displacement curves are compared with experiments. The selection of material constant in large deformation finite element analysis depend on the strain level of component in service.

키워드

참고문헌

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피인용 문헌

  1. An experimental study and finite element analysis of weatherstrip vol.12, pp.1, 2011, https://doi.org/10.1007/s12541-011-0012-0
  2. Material Properties for Reliability Improvement in the FEA Results for Rubber Parts vol.35, pp.11, 2011, https://doi.org/10.3795/KSME-A.2011.35.11.1521
  3. A spherical indentation technique for property evaluation of hyperelastic rubber vol.27, pp.20, 2012, https://doi.org/10.1557/jmr.2012.241
  4. Finite element analysis of crystalline silicon solar cell in screen printing process by using Taguchi method vol.14, pp.4, 2013, https://doi.org/10.1007/s12541-013-0085-z
  5. A Study of the Static and Dynamic Characteristics for Automotive Rubber Mount by FEA and Experiment vol.297-300, pp.1662-9795, 2005, https://doi.org/10.4028/www.scientific.net/KEM.297-300.299
  6. Comparative Study of Bifurcation Behavior of Rubber in Accordance with the Constitutive Equations vol.34, pp.6, 2010, https://doi.org/10.3795/KSME-A.2010.34.6.731
  7. Investigation of a Novel Rubber-Forming Process Inducing Uniform Surface Pressure for the Fabrication of a Thin Bent Plate with Corrugated Structure vol.35, pp.8, 2011, https://doi.org/10.3795/KSME-A.2011.35.8.933
  8. Comparative Study on the Nonlinear Material Model of HyperElastic Material Due to Variations in the Stretch Ratio vol.32, pp.4, 2018, https://doi.org/10.26748/KSOE.2018.6.32.4.253