Component Wedge-Splitting/Bending Test of Notched Specimens with Various Crack-Tip Constraint Conditions: Experiments and Simulations

Veselý, Václav; Merta, Ildikó; Šimonová, Hana; Schneemayer, Andreas; Seitl, Stanislav; Keršner, Zbyněk

doi:10.21012/fc9.086

Cited by 5 publications

(7 citation statements)

References 25 publications

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“…In literature we can found that researchers used various geometries for measurement of concrete fracture properties , e.g. TPB [13,17], WST [4,21], the combination of TPB and WST [29][30], disk shaped compact tension [14,32] and another configurations can be found in handbooks e.g. [22,28].…”

Section: Introductionmentioning

confidence: 99%

Comparison of fracture toughness values of normal and high strength concrete determined by three point bend and modified disk-shaped compact tension specimens

Seitl

Ríos

Cifuentes

2017

Frattura Ed Integrità Strutturale

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ABSTRACT. The modified disk shaped compact tension test is a configuration derived from standard compact tension test that is used for measuring fracture mechanical properties of primarily metallic materials. The compact tension configuration is commonly used for measurement fracture mechanical properties as e.g. fracture toughness, Young's modulus, work of fracture etc. The modified compact tension tests imply significant modifications of the specimen morphology in order to avoid premature failure. The modified compact tension test is not proper for quasi-brittle materials due to its complicated shape (steel-concrete interface), but it is easily extracted from drill core and we do not need large amount of material for obtaining fracture properties as we need for e.g. three-or four-point bend test. Since it is a new test method, a wide range of tests is needed to be done before it can be applied. In the paper the selected outputs of the experiments performed on normal and high strength concrete will be processed and the values of fracture mechanical parameters will be discussed.

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Section: Introductionmentioning

confidence: 99%

Comparison of fracture toughness values of normal and high strength concrete determined by three point bend and modified disk-shaped compact tension specimens

Seitl

Ríos

Cifuentes

2017

Frattura Ed Integrità Strutturale

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“…The FPZ could has various size and shape for different stress field in front of the crack that could influence determination of values of the fracture properties. Determination of the fracture properties of concrete is usually performed on common test configurations such as three-point bending or four point bending test with notch, see [17] [18][5] [19], the another configuration is wedge splitting test (WST [27][21] [15]), or wedge-splitting/bending test of notched specimens [29], CTS (compact tension shear) [9] [14] [16], composite compact tension specimen [24] etc. [25].…”

Section: Introductionmentioning

confidence: 99%

Quantification of Influence of Epoxy Layer Between Interface Steel-Concrete on Calibration Curves for Modified Compact Tension Test

Seitl¹,

Miarka²,

Sobek³

2017

Transactions of the VŠB – Technical University of Ostrava, Civil Engineering Series.

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The objective of this study is to investigate the use of compact tension specimen calibration curves for evaluation data of fracture properties measurement performed on modified compact tension specimen made from cement based composites. From literature, the well-known calibration curve for compact tension specimen is compared with calibration curves for Modified compact tension specimen that are obtained from numerical calculation. The obtained results are quantified and accuracy of solution is discussed. The suggested curves could be preferably used for determining of the fracture parameters.

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“…Note that from various geometry, the different values of fracture parameters can be obtained for the same material. Therefore the combined WST/3PBT geometry has been investigated, the variants are proposed in [29] Fig. 1 (Variant I represents the classical WST [7,24] and is included in the study as a reference case), see in [29].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore the combined WST/3PBT geometry has been investigated, the variants are proposed in [29] Fig. 1 (Variant I represents the classical WST [7,24] and is included in the study as a reference case), see in [29]. In all these cases the crack propagates from a notch provided on the top side of the specimen (in the groove for inserting of the WST loading fixtures.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Numerical study and pilot evaluation of experimental data measured on specimen loaded by bending and wedge splitting forces

Seitl¹,

Liedo²

2016

Frattura Ed Integrità Strutturale

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The fracture mechanical properties of silicate based materials are determined from various fracture mechanicals tests, e.g. three-or four-point bending test, wedge splitting test, modified compact tension test etc. For evaluation of the parameters, knowledge about the calibration and compliance functions is required. Therefore, in this paper, the compliance and calibration curves for a novel test geometry based on combination of the wedge splitting test and three-point bending test are introduced. These selected variants exhibit significantly various stress state conditions at the crack tip, or, more generally, in the whole specimen ligament. The calibration and compliance curves are compared and used for evaluation of the data from pilot experimental measurement.

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Component Wedge-Splitting/Bending Test of Notched Specimens with Various Crack-Tip Constraint Conditions: Experiments and Simulations

Cited by 5 publications

References 25 publications

Comparison of fracture toughness values of normal and high strength concrete determined by three point bend and modified disk-shaped compact tension specimens

Comparison of fracture toughness values of normal and high strength concrete determined by three point bend and modified disk-shaped compact tension specimens

Quantification of Influence of Epoxy Layer Between Interface Steel-Concrete on Calibration Curves for Modified Compact Tension Test

Numerical study and pilot evaluation of experimental data measured on specimen loaded by bending and wedge splitting forces

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