Inverse Parameter Identification for Hyperelastic Model of a Polyurea
An inverse procedure was proposed to identify the material parameters of polyurea materials. In this procedure, a polynomial hyperelastic model was chosen as the constitutive model. Both uniaxial tension and compression tests were performed for a polyurea. An iterative inverse method was presented t...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-07-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/13/14/2253 |
| _version_ | 1797526347157864448 |
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| author | Yihua Xiao Ziqiang Tang Xiangfu Hong |
| author_facet | Yihua Xiao Ziqiang Tang Xiangfu Hong |
| author_sort | Yihua Xiao |
| collection | DOAJ |
| description | An inverse procedure was proposed to identify the material parameters of polyurea materials. In this procedure, a polynomial hyperelastic model was chosen as the constitutive model. Both uniaxial tension and compression tests were performed for a polyurea. An iterative inverse method was presented to identify parameters for the tensile performance of the polyurea. This method adjusts parameters iteratively to achieve a good agreement between tensile forces from the tension test and its finite element (FE) model. A response surface-based inverse method was presented to identify parameters for the compression performance of the polyurea. This method constructs a radial basis function (RBF)-based response surface model for the error between compressive forces from the compression test and its FE model, and it employs the genetic algorithm to minimize the error. With the use of the two inverse methods, two sets of parameters were obtained. Then, a complete identified uniaxial stress–strain curve for both tensile and compressive deformations was obtained with the two sets of parameters. Fitting this curve with the constitutive equation gave the final material parameters. The present inverse procedure can simplify experimental configurations and consider effects of friction in compression tests. Moreover, it produces material parameters that can appropriately characterize both tensile and compressive behaviors of the polyurea. |
| first_indexed | 2024-03-10T09:27:58Z |
| format | Article |
| id | doaj.art-d0e22ecbb84f40d08bfaf4dccc71241b |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T09:27:58Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-d0e22ecbb84f40d08bfaf4dccc71241b2023-11-22T04:45:28ZengMDPI AGPolymers2073-43602021-07-011314225310.3390/polym13142253Inverse Parameter Identification for Hyperelastic Model of a PolyureaYihua Xiao0Ziqiang Tang1Xiangfu Hong2School of Mechatronics and Vehicle Engineering, East China Jiaotong University, Nanchang 330013, ChinaSchool of Mechatronics and Vehicle Engineering, East China Jiaotong University, Nanchang 330013, ChinaSchool of Mechatronics and Vehicle Engineering, East China Jiaotong University, Nanchang 330013, ChinaAn inverse procedure was proposed to identify the material parameters of polyurea materials. In this procedure, a polynomial hyperelastic model was chosen as the constitutive model. Both uniaxial tension and compression tests were performed for a polyurea. An iterative inverse method was presented to identify parameters for the tensile performance of the polyurea. This method adjusts parameters iteratively to achieve a good agreement between tensile forces from the tension test and its finite element (FE) model. A response surface-based inverse method was presented to identify parameters for the compression performance of the polyurea. This method constructs a radial basis function (RBF)-based response surface model for the error between compressive forces from the compression test and its FE model, and it employs the genetic algorithm to minimize the error. With the use of the two inverse methods, two sets of parameters were obtained. Then, a complete identified uniaxial stress–strain curve for both tensile and compressive deformations was obtained with the two sets of parameters. Fitting this curve with the constitutive equation gave the final material parameters. The present inverse procedure can simplify experimental configurations and consider effects of friction in compression tests. Moreover, it produces material parameters that can appropriately characterize both tensile and compressive behaviors of the polyurea.https://www.mdpi.com/2073-4360/13/14/2253polyureahyperelastic modelinverse procedurefinite elementexperiment |
| spellingShingle | Yihua Xiao Ziqiang Tang Xiangfu Hong Inverse Parameter Identification for Hyperelastic Model of a Polyurea Polymers polyurea hyperelastic model inverse procedure finite element experiment |
| title | Inverse Parameter Identification for Hyperelastic Model of a Polyurea |
| title_full | Inverse Parameter Identification for Hyperelastic Model of a Polyurea |
| title_fullStr | Inverse Parameter Identification for Hyperelastic Model of a Polyurea |
| title_full_unstemmed | Inverse Parameter Identification for Hyperelastic Model of a Polyurea |
| title_short | Inverse Parameter Identification for Hyperelastic Model of a Polyurea |
| title_sort | inverse parameter identification for hyperelastic model of a polyurea |
| topic | polyurea hyperelastic model inverse procedure finite element experiment |
| url | https://www.mdpi.com/2073-4360/13/14/2253 |
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