Experimental and Numerical Study on Tensile Strength of Concrete under Different Strain Rates
The dynamic characterization of concrete is fundamental to understand the material behavior in case of heavy earthquakes and dynamic events. The implementation of material constitutive law is of capital importance for the numerical simulation of the dynamic processes as those caused by earthquakes....
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/173531 |
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| _version_ | 1832553304318541824 |
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| author | Fanlu Min Zhanhu Yao Teng Jiang |
| author_facet | Fanlu Min Zhanhu Yao Teng Jiang |
| author_sort | Fanlu Min |
| collection | DOAJ |
| description | The dynamic characterization of concrete is fundamental to understand the material behavior in case of heavy earthquakes and dynamic events. The implementation of material constitutive law is of capital importance for the numerical simulation of the dynamic processes as those caused by earthquakes. Splitting tensile concrete specimens were tested at strain rates of 10−7 s−1 to 10−4 s−1 in an MTS material test machine. Results of tensile strength versus strain rate are presented and compared with compressive strength and existing models at similar strain rates. Dynamic increase factor versus strain rate curves for tensile strength were also evaluated and discussed. The same tensile data are compared with strength data using a thermodynamic model. Results of the tests show a significant strain rate sensitive behavior, exhibiting dynamic tensile strength increasing with strain rate. In the quasistatic strain rate regime, the existing models often underestimate the experimental results. The thermodynamic theory for the splitting tensile strength of concrete satisfactorily describes the experimental findings of strength as effect of strain rates. |
| format | Article |
| id | doaj-art-fd209d9f7b8f4dd1b19177941126b202 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-fd209d9f7b8f4dd1b19177941126b2022025-02-03T05:54:28ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/173531173531Experimental and Numerical Study on Tensile Strength of Concrete under Different Strain RatesFanlu Min0Zhanhu Yao1Teng Jiang2College of Mechanics and Materials, Hohai University, 1 Xikang Road, Nanjing 210098, ChinaCCCC Tunnel Engineering Company Limited, Beijing 100088, ChinaGeotechnical Research Institute of Hohai University, Nanjing 210098, ChinaThe dynamic characterization of concrete is fundamental to understand the material behavior in case of heavy earthquakes and dynamic events. The implementation of material constitutive law is of capital importance for the numerical simulation of the dynamic processes as those caused by earthquakes. Splitting tensile concrete specimens were tested at strain rates of 10−7 s−1 to 10−4 s−1 in an MTS material test machine. Results of tensile strength versus strain rate are presented and compared with compressive strength and existing models at similar strain rates. Dynamic increase factor versus strain rate curves for tensile strength were also evaluated and discussed. The same tensile data are compared with strength data using a thermodynamic model. Results of the tests show a significant strain rate sensitive behavior, exhibiting dynamic tensile strength increasing with strain rate. In the quasistatic strain rate regime, the existing models often underestimate the experimental results. The thermodynamic theory for the splitting tensile strength of concrete satisfactorily describes the experimental findings of strength as effect of strain rates.http://dx.doi.org/10.1155/2014/173531 |
| spellingShingle | Fanlu Min Zhanhu Yao Teng Jiang Experimental and Numerical Study on Tensile Strength of Concrete under Different Strain Rates The Scientific World Journal |
| title | Experimental and Numerical Study on Tensile Strength of Concrete under Different Strain Rates |
| title_full | Experimental and Numerical Study on Tensile Strength of Concrete under Different Strain Rates |
| title_fullStr | Experimental and Numerical Study on Tensile Strength of Concrete under Different Strain Rates |
| title_full_unstemmed | Experimental and Numerical Study on Tensile Strength of Concrete under Different Strain Rates |
| title_short | Experimental and Numerical Study on Tensile Strength of Concrete under Different Strain Rates |
| title_sort | experimental and numerical study on tensile strength of concrete under different strain rates |
| url | http://dx.doi.org/10.1155/2014/173531 |
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