Comparative Study on the Nonlinear Material Model of HyperElastic Material Due to Variations in the Stretch Ratio
| Autor: | Byoungjae Park, Kangsu Lee, Min Suk Ki |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
lcsh:Ocean engineering Elastomer 02 engineering and technology Hyperelastic material 021001 nanoscience & nanotechnology Curve Fitting Stretch ratio Nonlinear material model Nonlinear system 020303 mechanical engineering & transports 0203 mechanical engineering lcsh:TC1501-1800 Composite material 0210 nano-technology |
| Zdroj: | 한국해양공학회지, Vol 32, Iss 4, Pp 253-260 (2018) |
| ISSN: | 2287-6715 1225-0767 |
| DOI: | 10.26748/ksoe.2018.6.32.4.253 |
| Popis: | Recently, the application of non-steel materials in ships and offshore plants is increasing because of the development of various nonlinear materials and the improvement of performance. Especially, hyper-elastic materials, which have a nonlinear stress-strain relationship, are used mainly in marine plant structures or ships where impact relaxation, vibration suppression, and elasticity are required, while elasticity must be maintained, even under high strain conditions. In order to simulate and evaluate the behavior of the hyperelastic material, it is very important to select an appropriate material model according to the strain of the material. This study focused on the selection of material models for hyperelastic materials, such as rubber used in the marine and offshore fields. Tension and compression tests and finite element simulations were conducted to compare the accuracy of the nonlinear material models due to variations in the stretch ratio of hyper-elastic material. Material coefficients of nonlinear material models are determined based on the curve fitting of experimental data. The results of this study can be used to improve the reliability of nonlinear material models according to stretch ratio variation. |
| Databáze: | OpenAIRE |
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