Uniaxial Tensile Stress–Strain Behavior of Carbon-Fiber Grid–Reinforced Engineered Cementitious Composites

Zhang, Zhu; Wang, Wenwei; Harries, Kent A.; Zheng, Yuzhou

doi:10.1061/(asce)cc.1943-5614.0000891

Cited by 44 publications

(31 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was seen from this figure that the envelop curves can be divided into three stages, that is, elastic, stiffness‐softening, and strain‐hardening stages. This obtained test phenomenon is similar with the previous test results of CFRP‐ECC 17 . Moreover, the tensile strength and ultimate strain of composite material were also greatly improved with the increase of the strengthening ratio of BFRP grid.…”

Section: Test Programssupporting

confidence: 89%

“…Moreover, the residual strains and the area of the stress–strain hysteresis were gradually increased after fully unloaded. This similar test phenomenon was also observed in CFRP‐ECC experimental program 17 …”

Section: Test Programssupporting

confidence: 83%

“…For a wider application of the FRP‐ECC composite strengthening technique, some fundamental research works, like as the stress–strain relationship of the FRP‐ECC composite material, especially the cyclic stress–strain relationship, should be studied to expand its application into the anti‐seismic strengthening of structural elements. However, previous research results to response the stress–strain relationship of CFRP‐ECC showed that there were some drawbacks, such as nongenerality and complex computing process 17 . Besides, the effective average ultimate tensile strain of tested CFRP‐ECC specimens was only about 52% of CFRP material, which showed that it was not a good utilization.…”

Section: Introductionmentioning

confidence: 95%

“…Furthermore, the CFRP‐ECC maybe display the different cyclic behavior with other type of FRP grid, such as the blast fiber reinforced polymer (BFRP) grid, due to different mechanical characters of those grids, such as strength, elastic modulus, and elongation, and so on. Therefore, a wide range of test works should be conducted to investigate the feasibility of the previous model 17–19 and a modified model should be established to reflect the cyclic stress–strain behavior of FRP‐ECC materials.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A modified model for predicting cyclic stress–strain relationship of fiber reinforced polymer grid reinforced engineered cementitious composites

Zhang

Wang

Yin

et al. 2020

Structural Concrete

View full text Add to dashboard Cite

To verify the universality of the cycling model of carbon fiber reinforced polymer (CFRP) grid reinforced engineered cementitious composite (CFRP‐ECC) material, a complementary experiment was carried out to investigate the cycling behavior of basalt fiber reinforced polymer (BFRP) grid reinforced ECC (BFRP‐ECC) composite material using both traditional measurement and digital image correlation system. Elastic modulus, layers, and surface treatment of BFRP grid and the loading schemes were considered as the major variables in the experiment. Compared with the CFRP‐ECC, BFRP‐ECC had better ultimate and residual deformation capabilities. Test results also showed that the effective strain of the internal BFRP grid reached 80–90% of the ultimate material strain, therefore, higher loading capacity of BFRP‐ECC material was obtained. A unified model was proposed to analyze the cyclic stress–strain behavior for both BFRP‐ECC and CFRP‐ECC materials. The validation of the analysis model was verified through comparisons between the predicted values and the test results.

show abstract

Section: Test Programssupporting

confidence: 89%

Section: Test Programssupporting

confidence: 83%

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A modified model for predicting cyclic stress–strain relationship of fiber reinforced polymer grid reinforced engineered cementitious composites

Zhang

Wang

Yin

et al. 2020

Structural Concrete

View full text Add to dashboard Cite

show abstract

“…Kim et al [12] investigated the hybrid effect of twisted steel and polyethylene fibers on the tensile performance of ECCs. Zhu et al [13] conducted uniaxial tensile tests to investigate the stress-strain behavior of carbon-fiber grid-reinforced ECCs. Al-Gemeel et al [14] and Li et al [15] investigated the tensile behavior of a basalt textile grid reinforced ECC.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on the Quasi-Static Tensile Capacity of Engineered Cementitious Composites Reinforced with Steel Grid and Fibers

Liu

et al. 2019

Materials

View full text Add to dashboard Cite

An engineered cementitious composite (ECC) was reinforced with a steel grid and fibers to improve its tensile strength and ductility. A series of tensile tests have been carried out to investigate the quasi-static tensile capacity of the reinforced ECC. The quasi-static tensile capacities of reinforced ECCs with different numbers of steel-grid layers, types of fibers (Polyvinyl alcohol (PVA) fiber, KEVLAR fiber, and polyethylene (PE) fiber), and volume fractions of fibers have been tested and compared. It is indicated by the test results that: (1) On the whole, the steel grid-PVA fiber and steel grid-KEVLAR fiber reinforced ECCs have high tensile strength and considerable energy dissipation performance, while the steel grid-PE fiber reinforced ECC exhibits excellent ductility. (2) The ultimate tensile strength of the reinforced ECC can be improved by the addition of steel grids. The maximal peak tensile stress increase is about 50–95% or 140–190% by adding one layer or two layers of steel grid, respectively. (3) The ultimate tensile strength of the reinforced ECC can be enhanced with the increase of fiber volume fraction. For a certain kind of fiber, a volume fraction between 1.5% and 2% grants the reinforced ECC the best tensile strength. Near the ultimate loading point, the reinforced ECC exhibits strain hardening behavior, and its peak tensile stress increases considerably. The energy dissipation performance of the reinforced ECC can also be remarkably enhanced by such an increase in fiber volume fraction. (4) The ductility of the steel grid-PVA fiber reinforced ECC can be improved by the addition of steel grids and the increase of fiber volume fraction. The ductility of the steel grid-KEVLAR fiber reinforced ECC can be improved by the addition of steel grids alone. The ductility and energy dissipation performance of the steel grid-PE fiber reinforced ECC can be improved with the increase of fiber volume fraction alone. A mechanical model for the quasi-static initial and ultimate tensile strength of the steel grid-fiber reinforced ECC is proposed. The model is validated by the test data from the quasi-static tension experiments on the steel grid-PE fiber reinforced ECC.

show abstract

Behavior and modeling of FRP grid‐reinforced ultra‐high‐performance concrete under uniaxial tension

Zeng,

Zhuge

et al. 2024

Structural Concrete

View full text Add to dashboard Cite

Fiber reinforced polymer (FRP) reinforced ultra‐high‐performance concrete (UHPC) structural elements have become increasing popular in research and industry communities. In this paper, uniaxial tension tests were conducted to study the effects of fiber type, fiber length, and fiber content on tensile behavior of FRP grid reinforced UHPC plates (FGRUPs). Additionally, the microstructure analysis of specimens was conducted using scanning electron microscopy. Test results reveal that carbon FRP (CFRP) grid can substantially enhance the tensile performance of UHPC under tension: (1) the FGRUPs exhibit a post‐crack strain‐hardening behavior while the UHPC plates exhibit a post‐crack strain‐softening behavior; (2) the FRP grid enhances the cracking stress of UHPC specimens (except for plates with 1% basalt fibers) and the stiffness of the second segment of the stress–strain curve, and substantially enhances the ultimate tensile stress UHPC specimens. Also, the cost‐effectiveness analysis indicates that plates containing 1% of 12 mm length PE fibers have a highest cost efficiency index. Finally, a modified tensile stress–strain model for FGRUPs is proposed and verified.

show abstract

Uniaxial Tensile Stress–Strain Behavior of Carbon-Fiber Grid–Reinforced Engineered Cementitious Composites

Cited by 44 publications

References 22 publications

A modified model for predicting cyclic stress–strain relationship of fiber reinforced polymer grid reinforced engineered cementitious composites

A modified model for predicting cyclic stress–strain relationship of fiber reinforced polymer grid reinforced engineered cementitious composites

Experimental Investigation on the Quasi-Static Tensile Capacity of Engineered Cementitious Composites Reinforced with Steel Grid and Fibers

Behavior and modeling of FRP grid‐reinforced ultra‐high‐performance concrete under uniaxial tension

Contact Info

Product

Resources

About