| Quasi -static Mechanical Properties of SFRC under Uni -axial Compression |
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| 作者姓名： | JIAO Chu -jie SUN Wei ZHOU Yun |
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| 作者单位： | 1. School of Civil Engineering, Guangzhou University, Guangzhou 510405, P. R. China;2. Department of Materials Science and Engineering, Southeast University, Nanjing210096, P. R. China |
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| 摘 要： | Using WAW-2000 a multifunction servo-controlled testing machine,uniaxial quasi-static compression experiments for the steel fiber reinforced concrete(SFRC) were conducted with three strain rates.The volume fraction(V_f)of SFRC ranged from 0% to 3%,and the matrix was C50 concrete.The whole stress-strain curves of matrix and SFRC were obtained,and the results showed that with the increase of V_f,the compressive strength increased slowly,while the toughness increase quickly.With the increase of the strain rate,the strength of SFRC increased,but the toughness decreased,and the more the Vf,the less decreasing of the toughness.The results also showed that the elastic modulus and Poisson's ratio of SFRC were not sensitive material parameters,and with the increase of V_f,the former raised slightly and the latter decreased a little,respectively.A well suited numerical expression of the compressive stress-strain curve applicable to SFRC was put forward.
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| 关 键 词： | SFRC quasi-static uniaxial compression elastic modulus Poisson's ratio stress-strain curve |
| 收稿时间： | 2005/11/15 0:00:00 |
| 修稿时间： | 2005/11/15 0:00:00 |
Quasi -static Mechanical Properties of SFRC under Uni -axial Compression |
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| JIAO Chu -jie,SUN Wei,ZHOU Yun.Quasi -static Mechanical Properties of SFRC under Uni -axial Compression[J].Storage & Process,2006(2):56. |
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| Authors: | JIAO Chu -jie SUN Wei ZHOU Yun |
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| Institution: | 1. School of Civil Engineering, Guangzhou University, Guangzhou 510405, P. R. China;2. Department of Materials Science and Engineering, Southeast University, Nanjing210096, P. R. China |
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| Abstract: | Using WAW-2000 a multifunction servo-controlled testing machine,uniaxial quasi-static compression experiments for the steel fiber reinforced concrete(SFRC) were conducted with three strain rates.The volume fraction(V_f)of SFRC ranged from 0% to 3%,and the matrix was C50 concrete.The whole stress-strain curves of matrix and SFRC were obtained,and the results showed that with the increase of V_f,the compressive strength increased slowly,while the toughness increase quickly.With the increase of the strain rate,the strength of SFRC increased,but the toughness decreased,and the more the Vf,the less decreasing of the toughness.The results also showed that the elastic modulus and Poisson's ratio of SFRC were not sensitive material parameters,and with the increase of V_f,the former raised slightly and the latter decreased a little,respectively.A well suited numerical expression of the compressive stress-strain curve applicable to SFRC was put forward. |
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| Keywords: | SFRC quasi-static uniaxial compression elastic modulus Poisson's ratio stress-strain curve |
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