Dynamic damage constitutive relationship of high strength concrete based on fractal theory

JIAO Chujie; LI Xibo; CHENG Congmi; LI Congbo

doi:10.11883/bzycj-2016-0377

Volume 38 Issue 4

May 2018

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JIAO Chujie, LI Xibo, CHENG Congmi, LI Congbo. Dynamic damage constitutive relationship of high strength concrete based on fractal theory[J]. Explosion And Shock Waves, 2018, 38(4): 925-930. doi: 10.11883/bzycj-2016-0377

Citation:

JIAO Chujie, LI Xibo, CHENG Congmi, LI Congbo. Dynamic damage constitutive relationship of high strength concrete based on fractal theory[J]. Explosion And Shock Waves, 2018, 38(4): 925-930. doi: 10.11883/bzycj-2016-0377

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Dynamic damage constitutive relationship of high strength concrete based on fractal theory

doi: 10.11883/bzycj-2016-0377

1.
School of Civil Engineering, Guangzhou University, Guangzhou 510006, Guangdong, China
2.
Qingyuan City Provincial Vocational Education Base Construction Office, Qingyuan 511500, Guangdong, China

Received Date: 2016-12-13
Rev Recd Date: 2017-04-22
Publish Date: 2018-07-25

Abstract

Abstract

Based on the fractal damage evolution law of high strength concrete (HSC) specimen by the SHPB impact test, we deduced the patterns of the fractal damage variables of HSC, and calibrated the fractal dimension range of the HSC cracks. Then following the ZWT model, and in combination with the strain rate dependence, dynamic damage characteristic and quasi-constant strain rate, we obtained the HSC dynamic damage constitutive equation with the fractal damage evolution taken into account Finall. Our study verified the effectiveness of the constitutive equation by C60 and C80 stress-strain curves at four different strain ratios, and the theoretical curves matched well with the experimental ones.
- fractal theory,
- high strength concrete,
- SHPB,
- dynamic damage,
- constitutive relationship

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References(14)

References

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