Size Effect in Normal- and High-Strength Concrete with Different Notches under the Axial Load

Koç, Varol; Şener, Sıddık

doi:10.1061/(asce)0899-1561(2009)21:9(433)

Cited by 17 publications

(3 citation statements)

References 14 publications

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“…Besides experimental studies, numerical methods also have been widely applied to solve the fracture energy of cementitious materials, representative by boundary element method, finite element method, meshless method and recent extend finite element method [39][40]. Concrete meso extend finite element method is a very effective method and it can simulate arbitrariness and solve the crack initial and propagation processes of relevant cracks, without redividing meshes [41][42]. Unit decomposition method guarantees the convergence of extend finite element method and level set theory determines the crack location and trace the crack development.…”

Section: Fracture Toughnessmentioning

confidence: 99%

A Review on Microscopic Property of Concrete’s Aggregate-Mortar Interface Transition Zone

Xiong

Yin

2016

AMM

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Aggregate-mortar interface transition zone is a major factor for mechanical properties and durability of materials. Owing to the distinctive features of interface transition zone, this study reviewed research methods, structure models, improving methods and the influence to mechanics and durability of concrete of this zone. We also analyzed various test methods which are referred to in this review and their applicability, and discussed the formation mechanism and improving approach for interface transition zone. Our investigation suggested further scientific test is necessary for researching mechanical property of the interface.

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Section: Fracture Toughnessmentioning

confidence: 99%

A Review on Microscopic Property of Concrete’s Aggregate-Mortar Interface Transition Zone

Xiong

Yin

2016

AMM

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“…Furthermore, the size effect curve yields information on the brittleness of the specimens but the work of fracture method does not. In the case of concretes, the size effect method was applied successfully to the failure of concrete structures failing in tension, in diagonal shear, in torsion [27,28], in pull-out of reinforcing bars [29], in bond splice [30], in compression [31,32,33,34], in bending [35,36,37] as well as by Arcan tests [38].…”

Section: Introductionmentioning

confidence: 99%

Double cantilever indirect tension testing for fracture of quasibrittle materials

Caner

Dönmez

Şener

et al. 2019

International Journal of Solids and Structures

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“…Numerous test efforts have been carried out to explore the size effect in RC columns. Many studies have concentrated on the influencing factors on the size effect of RC columns, involving the slenderness ratio (Bažant and Kwon, 1994; Şener et al., 1999, 2004), the strength grade of concrete (Koç and Şener, 2009; Li et al., 2016), the transversal confinement (e.g., the stirrup-confined (Němeček et al., 2005; Li et al., 2014; Li et al., 2016), fiber-confined (Elsanadedy et al., 2012; Liang et al., 2012; Masia et al., 2004; Wang et al., 2016), steel-tube confined (Sakino et al., 2004; Yamamoto et al., 2002)), as well as the loading pattern (Bažant and Kwon, 1994; Guo and Bažant, 2007). Moreover, finite element analyses were also performed, e.g., in the publications (Bažant and Jirasek, 2002; Majewski et al., 2008; Pijaudier-Cabot et al., 2004; van Mier and van Vliet, 2003).…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical investigations on the size effect of moderate high-strength reinforced concrete columns under small-eccentric compression

Jin

Ding

et al. 2017

International Journal of Damage Mechanics

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The paper deals with an experimental investigation and numerical simulation of moderate high-strength reinforced concrete (RC) columns subjected to a small-eccentric compressive loading ( e0 = 0.25 h0). A series of tests on the behavior of 12 geometrically similar moderate high-strength reinforced concrete columns with two different stirrups ratios (i.e., 0% and 0.66%) were conducted. The maximum structural size of the square reinforced concrete columns was 800 mm. A 2D mesoscale method for the simulation of the behavior of reinforced concrete columns was established. The numerical tests on the reinforced concrete columns with larger stirrup ratios (1.2% and 2.4%) were carried out complementarily, based on the fact that the simulation results were consistent with the available test observations. The failure patterns, the nominal compressive stress–strain relationships, the nominal compressive strength, and the post-peak softening behavior of the reinforced concrete columns were studied. Furthermore, the influence of stirrups on failure behavior and size effect of the reinforced concrete columns was revealed. One can conclude that (1) the size effect exists in the nominal compressive strength of the eccentrically loaded high-strength reinforced concrete columns with the four different stirrup ratios; (2) comparison of the present test results and the “size effect law” proposed by Bažant shows good agreement; (3) the presence of stirrups improves the nominal strengths, makes the failure of columns less brittle, and weakens the size effect; and (4) the proposed mesoscale numerical method is capable of describing the mechanical behavior of eccentrically loaded reinforced concrete columns.

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Size Effect in Normal- and High-Strength Concrete with Different Notches under the Axial Load

Cited by 17 publications

References 14 publications

A Review on Microscopic Property of Concrete’s Aggregate-Mortar Interface Transition Zone

A Review on Microscopic Property of Concrete’s Aggregate-Mortar Interface Transition Zone

Double cantilever indirect tension testing for fracture of quasibrittle materials

Experimental and numerical investigations on the size effect of moderate high-strength reinforced concrete columns under small-eccentric compression

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