Numerical Simulation of Modified Compact Tension Test Depicting of Experimental Measurement by ARAMIS

Holušová, Táňa; Seitl, Stanislav; Fernández‐Canteli, Alfonso

doi:10.4028/www.scientific.net/kem.627.277

Cited by 5 publications

(8 citation statements)

References 9 publications

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“…The calibration curves are introduced in Eqs. (6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24) for each selected case. …”

Section: Numerical Results and Discussionmentioning

confidence: 99%

“…However, its applicability in concrete is characterized by some disadvantages, such as drilling the holes necessary to apply C the pulling forces and the hazard of a local fracture originated at these holes. The modified compact tension test (MCT [4,5,9,10,21,23) is a quite new test configuration on notched specimens to obtain fracture mechanics parameters of materials in laboratory conditions, note that test is derived from classic CT test. A detailed research program/campaign has to be done before the configuration starts to be used as a standard.…”

Section: Introductionmentioning

confidence: 99%

“…A detailed research program/campaign has to be done before the configuration starts to be used as a standard. The several authors used cohesive crack model and prepared MCT model in software ATENA [10] or in software ABAQUS [5]. Pilot experimental measurement and comparison of selected configurations with three point bending specimen is introduced in contributions [4,9].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Modified compact tension specimen for experiments on cement based materials: comparison of calibration curves from 2D and 3D numerical solutions

Seitl¹,

Viszlay²

2016

Frattura Ed Integrità Strutturale

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ABSTRACT. The evaluation of fracture mechanics parameters of materials has become very important part of considering the condition of older constructions as well as properties of newly developed materials. This contribution focuses on a numerical simulation and a calculation of fracture mechanical properties of modified compact tension test configuration. It is possible to prepare the specimens used for this test very easily from a drilled core or from specimens used for cylindrical compression test. The focus of contribution is to compare selected outputs from numerical solution of 2D (plane strain conditions) with 3D models. Particularly, the determination of the influence of 2D and 3D model on the calibration curves for selected fracture mechanics parameters is of interest. Finite element software ANSYS was used for the numerical analysis. KEYWORDS. Stress Intensity

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“…The calibration curves are introduced in Eqs. (6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24) for each selected case. …”

Section: Numerical Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modified compact tension specimen for experiments on cement based materials: comparison of calibration curves from 2D and 3D numerical solutions

Seitl¹,

Viszlay²

2016

Frattura Ed Integrità Strutturale

View full text Add to dashboard Cite

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“…In the first case, the three point bending test (3PB) is applied to smaller beams either of dimensions 40 × 40 × 160 (120) mm 3 or 100 × 100 × 400 (300) mm 3 without reinforcement, see e.g. [2], [6] or [19]. In the second case the four point bend test (4PB) is applied mostly on larger reinforced concrete beams.…”

Section: Introductionmentioning

confidence: 99%

“…see [6] and [11]. The two most suitable types of such tests are used for concrete beams with or without reinforcement.…”

Section: Introductionmentioning

confidence: 99%

Influence Of The Gripping Fixture On The Modified Compact Tension Test Results: Evaluation Of The Experiments On Cylindrical Concrete Specimens

Holušová¹,

Lozano²,

Fernández‐Canteli³

et al. 2015

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

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The modified compact tension test (MCT) might become in the future a stable test configuration for the evaluation of fracture-mechanics parameters or also for description of fatigue behavior of composites materials such as concrete. Core drilling is used for sampling of existing structures. These samples have cylindrical shape with the selected thickness to avoid the stress concentration. This contribution focuses on the evaluation of the fracture behavior during static and quasi static tests. Static tests are performed on standard specimen with diameter 150 mm and length 300 mm. The quasi-static tests are performed using two different gripping fixtures. The results for quasi-static tests are represented as L-COD diagrams (i.e. load vs. crack opening displacement) measured on the loading axis. The comparison of results and discussion of advantages and disadvantages are introduced.

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Experimental analysis of the influence of concrete curing on the development of its elastic modulus over time

Kocáb¹,

Králíková²,

Cikrle³

et al. 2017

Mater. Tehnol.

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The modulus of elasticity is one of the most important properties of concrete, especially during structural analyses of buildings. It is, among others, an important parameter in the calculation of the concrete-element deflection or during the design of pre-or post-tensioned structures. The modulus of elasticity is not a specific number. It is a property with a high variability of the final values, which depend on the concrete composition (together with other factors). Some of the significant factors, which influence the final value of the elastic modulus of concrete, are also the means and quality of its curing, especially at the early stage of its setting and hardening. Apart from maintaining the temperature within the correct limits, it is important to focus on the moisture content of concrete while it is being cured. The purpose of the experiment described herein was to determine the development of the dynamic as well as static modulus of elasticity for structural concrete while using different curing methods. The experiment used four series of beam specimens with nominal dimensions of 100 × 100 × 400 mm made from air-entrained and non-air-entrained concretes of the C 30/37 strength class. A half of the specimens in each series aged in laboratory conditions and the other half was stored under water. Based on the evaluation of the experimental measurements, it can be said that the manner of storage has a significant influence on the development and final values of the static and dynamic modulus of elasticity. Keywords: concrete, curing, modulus of elasticity, compressive strength Ena od najpomembnej{ih lastnosti betona je modul elasti~nosti. Njegovo poznavanje je {e posebej pomembno za strukturno analizo stavb. To je, med drugim, pomemben parameter pri izra~unu deformacij betonskih elementov pred ali med oblikovanjem prednapetih struktur. Modul elasti~nosti ni specifi~na {tevilka; je lastnost z zelo razli~nimi kon~nimi vrednostmi, ki so odvisne od sestave betona (skupaj z drugimi dejavniki). Pogoji njegovega utrjevanja so zelo pomembni. Vplivajo na kon~no velikost elasti~nega modula betona, zlasti v zgodnji (za~etni) fazi utrjevanja. Razen ohranjanja temperature v pravilnih mejah, se je pomembno osredoto~iti na vsebnost vlage v betonu, medtem, ko se le-ta utrjuje. Namen opisanega preizkusa je bil dolo~iti tako razvoj dinami~nega kot tudi stati~nega modula elasti~nosti konstrukcijskega betona, z uporabo razli~nih metod utrjevanja. V preizkusu so bile uporabljene {tiri serije preizku{ancev v obliki nosilcev z nazivnimi dimenzijami 100 mm × 100 mm × 400 mm, izdelanih iz zra~no tretiranih in netretiranih betonov iz trdnostnega razreda C 30/37 (N/mm 2 ). Polovica vzorcev v vsaki seriji je bila starana v laboratorijskih pogojih, druga polovica pa je bila shranjena v vodi. Na podlagi vrednotenja eksperimentalnih meritev, lahko re~emo, da na~in shranjevanja pomembno vpliva na razvoj in kon~ne vrednosti stati~nega in dinami~nega modula elasti~nosti.

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Numerical Simulation of Modified Compact Tension Test Depicting of Experimental Measurement by ARAMIS

Cited by 5 publications

References 9 publications

Modified compact tension specimen for experiments on cement based materials: comparison of calibration curves from 2D and 3D numerical solutions

Modified compact tension specimen for experiments on cement based materials: comparison of calibration curves from 2D and 3D numerical solutions

Influence Of The Gripping Fixture On The Modified Compact Tension Test Results: Evaluation Of The Experiments On Cylindrical Concrete Specimens

Experimental analysis of the influence of concrete curing on the development of its elastic modulus over time

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