A modified SPH method for dynamic failure simulation of heterogeneous material
A modified smoothed particle hydrodynamics (SPH) method is applied to simulate the failure process of heterogeneous materials. An elastoplastic damage model based on an extension form of the unified twin shear strength (UTSS) criterion is adopted. Polycrystalline modeling is introduced to generate t...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2014
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/100030 http://hdl.handle.net/10220/19773 |
| _version_ | 1826125632045580288 |
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| author | Ma, G. W. Wang, Q. S. Yi, X. W. Wang, X. J. |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Ma, G. W. Wang, Q. S. Yi, X. W. Wang, X. J. |
| author_sort | Ma, G. W. |
| collection | NTU |
| description | A modified smoothed particle hydrodynamics (SPH) method is applied to simulate the failure process of heterogeneous materials. An elastoplastic damage model based on an extension form of the unified twin shear strength (UTSS) criterion is adopted. Polycrystalline modeling is introduced to generate the artificial microstructure of specimen for the dynamic simulation of Brazilian splitting test and uniaxial compression test. The strain rate effect on the predicted dynamic tensile and compressive strength is discussed. The final failure patterns and the dynamic strength increments demonstrate good agreements with experimental results. It is illustrated that the polycrystalline modeling approach combined with the SPH method is promising to simulate more complex failure process of heterogeneous materials. |
| first_indexed | 2024-10-01T06:39:50Z |
| format | Journal Article |
| id | ntu-10356/100030 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:39:50Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/1000302020-03-07T11:43:28Z A modified SPH method for dynamic failure simulation of heterogeneous material Ma, G. W. Wang, Q. S. Yi, X. W. Wang, X. J. School of Civil and Environmental Engineering DRNTU::Engineering::Materials::Testing of materials A modified smoothed particle hydrodynamics (SPH) method is applied to simulate the failure process of heterogeneous materials. An elastoplastic damage model based on an extension form of the unified twin shear strength (UTSS) criterion is adopted. Polycrystalline modeling is introduced to generate the artificial microstructure of specimen for the dynamic simulation of Brazilian splitting test and uniaxial compression test. The strain rate effect on the predicted dynamic tensile and compressive strength is discussed. The final failure patterns and the dynamic strength increments demonstrate good agreements with experimental results. It is illustrated that the polycrystalline modeling approach combined with the SPH method is promising to simulate more complex failure process of heterogeneous materials. Published version 2014-06-16T01:38:18Z 2019-12-06T20:15:26Z 2014-06-16T01:38:18Z 2019-12-06T20:15:26Z 2014 2014 Journal Article Ma, G. W., Wang, Q. S., Yi, X. W., & Wang, X. J. (2014). A Modified SPH Method for Dynamic Failure Simulation of Heterogeneous Material. Mathematical Problems in Engineering, 2014, 808359-. https://hdl.handle.net/10356/100030 http://hdl.handle.net/10220/19773 10.1155/2014/808359 en Mathematical problems in engineering Copyright © 2014 G. W. Ma et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. application/pdf |
| spellingShingle | DRNTU::Engineering::Materials::Testing of materials Ma, G. W. Wang, Q. S. Yi, X. W. Wang, X. J. A modified SPH method for dynamic failure simulation of heterogeneous material |
| title | A modified SPH method for dynamic failure simulation of heterogeneous material |
| title_full | A modified SPH method for dynamic failure simulation of heterogeneous material |
| title_fullStr | A modified SPH method for dynamic failure simulation of heterogeneous material |
| title_full_unstemmed | A modified SPH method for dynamic failure simulation of heterogeneous material |
| title_short | A modified SPH method for dynamic failure simulation of heterogeneous material |
| title_sort | modified sph method for dynamic failure simulation of heterogeneous material |
| topic | DRNTU::Engineering::Materials::Testing of materials |
| url | https://hdl.handle.net/10356/100030 http://hdl.handle.net/10220/19773 |
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