Numerical Study on Crack Propagation by Using Softening Model under Blasting
A mixed failure criterion, which combined the modified maximum principal stress criterion with the damage model of tensile crack softening, was developed to simulate crack propagation of rock under blasting loads. In order to validate the proposed model, a set of blasting models with a crack and a b...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/108580 |
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| _version_ | 1832564839855161344 |
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| author | Rong Hu Zheming Zhu Jun Xie Dingjun Xiao |
| author_facet | Rong Hu Zheming Zhu Jun Xie Dingjun Xiao |
| author_sort | Rong Hu |
| collection | DOAJ |
| description | A mixed failure criterion, which combined the modified maximum principal stress criterion with the damage model of tensile crack softening, was developed to simulate crack propagation of rock under blasting loads. In order to validate the proposed model, a set of blasting models with a crack and a borehole with different incident angles with the crack were established. By using this model, the property of crack propagation was investigated. The linear equation of state (EOS) was used for rock, and the JWL EOS was applied to the explosive. In order to validate the numerical simulation results, experiments by using PMMA (polymethyl methacrylate) with a crack and a borehole were carried out. The charge structure and incident angle of the blasting experimental model were the same as those in the numerical models. The experiment results agree with the numerical simulation results. |
| format | Article |
| id | doaj-art-a5525589c58a4c7a83eda2a18bf2571c |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-a5525589c58a4c7a83eda2a18bf2571c2025-02-03T01:10:08ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/108580108580Numerical Study on Crack Propagation by Using Softening Model under BlastingRong Hu0Zheming Zhu1Jun Xie2Dingjun Xiao3College of Architecture and Environment, Sichuan University, Chengdu, Sichuan 610065, ChinaCollege of Architecture and Environment, Sichuan University, Chengdu, Sichuan 610065, ChinaCollege of Architecture and Environment, Sichuan University, Chengdu, Sichuan 610065, ChinaCollege of Architecture and Environment, Sichuan University, Chengdu, Sichuan 610065, ChinaA mixed failure criterion, which combined the modified maximum principal stress criterion with the damage model of tensile crack softening, was developed to simulate crack propagation of rock under blasting loads. In order to validate the proposed model, a set of blasting models with a crack and a borehole with different incident angles with the crack were established. By using this model, the property of crack propagation was investigated. The linear equation of state (EOS) was used for rock, and the JWL EOS was applied to the explosive. In order to validate the numerical simulation results, experiments by using PMMA (polymethyl methacrylate) with a crack and a borehole were carried out. The charge structure and incident angle of the blasting experimental model were the same as those in the numerical models. The experiment results agree with the numerical simulation results.http://dx.doi.org/10.1155/2015/108580 |
| spellingShingle | Rong Hu Zheming Zhu Jun Xie Dingjun Xiao Numerical Study on Crack Propagation by Using Softening Model under Blasting Advances in Materials Science and Engineering |
| title | Numerical Study on Crack Propagation by Using Softening Model under Blasting |
| title_full | Numerical Study on Crack Propagation by Using Softening Model under Blasting |
| title_fullStr | Numerical Study on Crack Propagation by Using Softening Model under Blasting |
| title_full_unstemmed | Numerical Study on Crack Propagation by Using Softening Model under Blasting |
| title_short | Numerical Study on Crack Propagation by Using Softening Model under Blasting |
| title_sort | numerical study on crack propagation by using softening model under blasting |
| url | http://dx.doi.org/10.1155/2015/108580 |
| work_keys_str_mv | AT ronghu numericalstudyoncrackpropagationbyusingsofteningmodelunderblasting AT zhemingzhu numericalstudyoncrackpropagationbyusingsofteningmodelunderblasting AT junxie numericalstudyoncrackpropagationbyusingsofteningmodelunderblasting AT dingjunxiao numericalstudyoncrackpropagationbyusingsofteningmodelunderblasting |