Experimental confirmation of some factors influencing dynamic concrete compressive strengths in high-speed impact tests

Hao, Yifei; Hao, Hong; Jiang, Guoping; Zhou, Yulu

doi:10.1016/j.cemconres.2013.05.008

Cited by 214 publications

(73 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hao et al [15] were performed quasi-static and SHPB compression tests in the range of strain rates 50-500 s −1 on cylindrical concrete samples with 04005-p.3 Table 4 shows static strength for each specimen, described in [15]. The results represented in the Table 4 show that an essential increase in sample diameter from 22 mm to 32 mm (at nearly the same length 10 mm-11 mm) leads to a noticeable increase of measured static strength and incubation time.…”

Section: Size and Scale Effectmentioning

confidence: 99%

“…According to the typical dependence of loading stress on time at the moment of fracture, described in [5,15], an increase the compressive stress with strain rate can be assumed to be linear until it reaches the maximum value, so that…”

Section: Definition Fracture Stress On Incubation Time Criterionmentioning

confidence: 99%

“…According to experimental data [5,15] the criterion (1) rewritten for case the defect-free sample in the following form:…”

Section: Definition Fracture Stress On Incubation Time Criterionmentioning

confidence: 99%

“…In the present research it is regarded results tests on Split Hopkinson bar of different rocks and concrete, obtained in [5,[15][16][17]. According to structural-temporal approach, we evaluate the incubation time concrete and mortar plot dependences (high-speed curve) of the fracture stress on strain rate [5].…”

Section: Introductionmentioning

confidence: 99%

“…The different behaviour of concrete and mortar under static and dynamic loading is exhibited. Using fracture criterion we calculate incubation time and high-speed curve for each specimen of concrete [15] and rocks [16,17]. Comparisons of material strength of fixed length or width specimen are presented.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Scale and size effects in dynamic fracture of concretes and rocks

Petrov

Selyutina

2015

EPJ Web of Conferences

View full text Add to dashboard Cite

Abstract. Structural-temporal approach based on the notion of incubation time is used for interpretation of strain-rate effects in the fracture process of concretes and rocks. It is established that temporal dependences of concretes and rocks are calculated by the incubation time criterion. Experimentally observed different relations between ultimate stresses of concrete and mortar in static and dynamic conditions are explained. It is obtained that compressive strength of mortar at a low strain rate is greater than that of concrete, but at a high strain rate the opposite is true. Influence of confinement pressure on the mechanism of dynamic strength for concretes and rocks is discussed. Both size effect and scale effect for concrete and rocks samples subjected to impact loading are analyzed. Statistical nature of a size effect contrasts to a scale effect that is related to the definition of a spatio-temporal representative volume determining the fracture event on the given scale level.

show abstract

Section: Size and Scale Effectmentioning

confidence: 99%

Section: Definition Fracture Stress On Incubation Time Criterionmentioning

confidence: 99%

“…According to experimental data [5,15] the criterion (1) rewritten for case the defect-free sample in the following form:…”

Section: Definition Fracture Stress On Incubation Time Criterionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Scale and size effects in dynamic fracture of concretes and rocks

Petrov

Selyutina

2015

EPJ Web of Conferences

View full text Add to dashboard Cite

show abstract

Dynamic Behaviors of Fly Ash–Ground‐Granulated Blast‐Furnace Slag–High‐Magnesium Nickel Slag‐Based Geopolymer Paste When Subjected to Impact Compressive Loadings

et al. 2019

View full text Add to dashboard Cite

Reducing the emission of CO 2 into the atmosphere is a challenge due to rapid industrial development, particularly in developing countries. Ordinary Portland cement (OPC) is the second-most-consumed material just after water. It is estimated that the production of one ton OPC generates %0.87 ton CO 2 . Geopolymers are considered as the sustainable materials that possess similar or even better mechanical properties than OPC. Geopolymers are made from byproducts such as fly ash, furnace slag, and China clay. This article reports an experimental study on the dynamic mechanical behaviors of fly ash-groundgranulated blast-furnace slag-high-magnesium nickel slag (FA-GGBS-HMNS)based geopolymers when subjected to impact loading. The impact tests are performed using a split-Hopkinson pressure bar device. The test results show that both the dynamic compressive strength and ultimate strain of the FA-GGBS-HMNS-based geopolymer paste increase with increased strain rate. The failure modes are also found to be different in the specimens under different impact speeds.

show abstract

Mechanical properties and constitutive model of coral aggregate concrete subjected to dynamic uniaxial and triaxial compression

Deng

Jiang

et al. 2022

Structural Concrete

View full text Add to dashboard Cite

The dynamic compressive mechanical performance of coral aggregate concrete (CAC) has been studied by the servo-controlled true triaxial testing machine (TAWZ-5000/3000), the failure modes and the stress-strain curves were obtained under various loading conditions. The effect of strain rates and the constant lateral pressure on the strength, deformation capacity, and failure modes of CAC were analyzed according to the results obtained from the test.The results show that the lateral pressure significantly changes the failure mode while the strain rate only affects the degree. The strength and deformation capacity will improve with the increase of strain rate and lateral pressure, and the lateral pressure diminishes the strain rate effect on mechanical properties. A 5-parameter empirical dynamic failure criterion was established based on the William-Warnke criterion. Finally, a 2-stage dynamic multiaxial compressive constitutive model obeying the Weibull and Lognormal statistical distributions was established, and the model had well-fitting results with the experimental results. K E Y W O R D S constitutive model, coral aggregate concrete, failure criterion, lateral pressure, mechanical properties, strain rate

show abstract

Experimental confirmation of some factors influencing dynamic concrete compressive strengths in high-speed impact tests

Cited by 214 publications

References 38 publications

Scale and size effects in dynamic fracture of concretes and rocks

Scale and size effects in dynamic fracture of concretes and rocks

Dynamic Behaviors of Fly Ash–Ground‐Granulated Blast‐Furnace Slag–High‐Magnesium Nickel Slag‐Based Geopolymer Paste When Subjected to Impact Compressive Loadings

Mechanical properties and constitutive model of coral aggregate concrete subjected to dynamic uniaxial and triaxial compression

Contact Info

Product

Resources

About