Experimental study of dynamic splitting-tensile properties of precast concrete samples under different strain rates

被引：14

作者：

Xie, Faxiang ^{[1
]}

Jin, Ziheng ^{[1
]}

Yang, Tengfei ^{[1
]}

Han, Xu ^{[1
]}

Chen, Xudong ^{[1
]}

Zhang, Yun ^{[1
]}

机构：

[1] Hohai Univ, Coll Civil & Transportat, Nanjing 210098, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2023年 / 372卷

关键词：

Precast concrete; Concrete core specimen; Dynamic impact; Splitting -tensile strength; Dispersion; Fractal dimension analysis; FAILURE-MECHANISM; STRENGTH; SANDSTONE; BEHAVIOR;

D O I：

10.1016/j.conbuildmat.2023.130748

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This study investigated the dynamic splitting and tensile properties of the precast concrete core samples under different strain rates using the split-Hopkinson pressure bar (SHPB). The dynamic splitting-tensile strength (DSTS), stress-strain curves, and damage patterns of concrete were analyzed. The modified Weibull statistical model was utilized to analyze the discrete features of DSTS and strain rate effects of the precast concrete samples. Besides, the fractal theory was applied to calculate the fractal dimension of surface cracks on core specimens. The relationships between the fractal dimension, splitting-tensile strength, and strain rate effect were also presented. Consequently, it was found that the stress-strain curves of different strength grades of concrete specimens displayed similar patterns. The DSTS of precast concrete exhibited an apparent impact-strengthening effect. And the modified Weibull model proposed in this paper could accurately predict the distribution of DSTS at different strain rates of precast concrete, which provided a theoretical reference for the strength prediction of precast concrete in practical engineering practices. Furthermore, the fractal dimension could qualitatively characterize the failure evolution trend and extent of splitting-tensile damages, providing a new research direction to investigate crack patterns and dynamic mechanical properties of precast concrete members in future engineering inspection and maintenance.

引用

页数：11

共 50 条

[41] Tensile strength of concrete under static and intermediate strain rates: Correlated results from different testing methods [J].

Wu, Shengxing ;

Chen, Xudong ;

Zhou, Jikai .

NUCLEAR ENGINEERING AND DESIGN, 2012, 250 :173-183

[42] Mechanical characterisation of the dynamic tensile properties of CFRP sheet and adhesive at medium strain rates [J].

Al-Zubaidy, Haider ;

Zhao, Xiao-Ling ;

Al-Mahaidi, Riadh .

COMPOSITE STRUCTURES, 2013, 96 :153-164

[43] Dynamic compressive and splitting tensile response of unsaturated polyester polymer concrete material at different curing ages [J].

Chen, De ;

Liu, Feng ;

Yang, Fei ;

Jing, Lin ;

Feng, Wanhui ;

Lv, Jianbing ;

Luo, Qingzi .

CONSTRUCTION AND BUILDING MATERIALS, 2018, 177 :477-498

[44] Impact of Splitting Tensile Properties and Dynamic Constitutive Model of Fly Ash Concrete [J].

Zhang, Hua ;

Bai, Lingyu ;

Qi, Yazhen ;

Hong, Heang ;

Neupane, Aayush ;

Pan, Qi .

JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 2020, 32 (08)

[45] Tensile behaviour of corroded steel bars under different strain rates [J].

Zhang, Wei-ping ;

Chen, Hui ;

Gu, Xiang-lin .

MAGAZINE OF CONCRETE RESEARCH, 2016, 68 (03) :127-140

[46] Experimental study on the dynamic mechanical properties of concrete under freeze-thaw cycles [J].

Han, Nv ;

Tian, Wei .

STRUCTURAL CONCRETE, 2018, 19 (05) :1353-1362

[47] Study on the mechanical properties and mesoscopic damage mechanism of recycled aggregate concrete under different dynamic strain rates after freeze-thaw cycles [J].

Yuan, Chenyang ;

Qu, Siying ;

Bai, Weifeng ;

Guan, Junfeng ;

Xie, Yunfei .

CASE STUDIES IN CONSTRUCTION MATERIALS, 2025, 22

[48] Study on dynamic splitting tensile mechanical properties and microscopic mechanism analysis of steel fiber reinforced concrete [J].

Peng, Shuai ;

Wu, Bo ;

Du, Xiaoqing ;

Zhao, Yanfei ;

Yu, Zhenpeng .

STRUCTURES, 2023, 58

[49] Experimental study of dynamic mechanical properties of reactive powder concrete under high-strain-rate impacts [J].

Ju Yang ;

Liu HongBin ;

Sheng GuoHua ;

Wang HuiJie .

SCIENCE CHINA-TECHNOLOGICAL SCIENCES, 2010, 53 (09) :2435-2449

[50] Precast segmental reinforced concrete walls under eccentric compressive loading: An experimental study [J].

Hou, Hetao ;

Ye, Haideng ;

Qu, Bing ;

Ma, Tianxiang ;

Liu, Xiang ;

Chen, Lei ;

Zhang, Shuhui .

ENGINEERING STRUCTURES, 2016, 113 :79-88

← 1 2 3 4 5 →