Double cantilever indirect tension testing for fracture of quasibrittle materials

Caner, Ferhun C.; Dönmez, Abdullah; Şener, Sıddık; Koç, Varol

doi:10.1016/j.ijsolstr.2018.11.029

Cited by 3 publications

(1 citation statement)

References 47 publications

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“…The size effect law (SEL) can be used to characterize the strength reduction of pushout specimens as well as the shear strengths of SCC beams and slabs under bending actions. The validation of the Bažant’s SEL is extensively verified in many of the previous researches in which the materials have quasibrittle nature (Caner et al, 2019; Dönmez and Bažant, 2017, 2019, 2020; Dönmez et al, 2020a; Dönmez et al, 2020b). Here the same phenomenon is applied to the shear failures of headed studs with experimental validation.…”

Section: Methodsmentioning

confidence: 70%

Size effect on the shear capacity of headed studs

Dönmez

2020

Advances in Structural Engineering

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This study aimed to reveal the existence of size effect on the shear connectors used in the steel-concrete composite beams and slabs. The experimental study contains the monotonic tests of nine pushout specimens with the headed studs. Three-dimensional scaling was used for geometrically similar specimens of three sizes. High strength concrete slabs were used on both sides of the steel I-beam. The failure modes of the specimens include both concrete crushing and stud yielding. Finite element (FE) verification of the specimens was conducted using a realistic concrete damage constitutive model, Microplane Model M7. It is shown that there may be a non-negligible size effect based on the fracture patterns of the composite member. Bažant’s size effect law (SEL) can fit the size effect behavior of the shear connectors. The design equations which do not include a size effect term have high correction factors that overestimate the tested specimens. A new design equation can be drawn using the size effect factor for strength reduction of shear connectors.

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Section: Methodsmentioning

confidence: 70%

Size effect on the shear capacity of headed studs

Dönmez

2020

Advances in Structural Engineering

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Mechanical response of textile reinforced cementitious composite tubes under monotonic and cyclic loadings

Dönmez

Gençoğlu

2020

Construction and Building Materials

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Dependence of fracture size effect and projectile penetration on fiber content of FRC

Bažant

Rasoolinejad

Dönmez

et al. 2019

IOP Conf. Ser.: Mater. Sci. Eng.

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The microplane constitutive model M7f for fiber reinforced concrete (FRC), previously calibrated by extensive material test data, is used in computational simulations of the size effect in geometrically similar notched specimens, and in simulations of penetration of projectiles into FRC targets. The M7f microplane model for fiber reinforced concrete is calibrated at the material level and then used to predict structural level behavior. The results show that, for any fiber volume ratio, the Type 2 size effect must be expected.

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Double cantilever indirect tension testing for fracture of quasibrittle materials

Abstract: The Double Cantilever Beam (DCB) Mode I fracture testing has been widely used in fracture testing of especially fiber reinforced polymer composites and adhesive joints. Application of classical DCB testing to plain concrete or

Cited by 3 publications

References 47 publications

Size effect on the shear capacity of headed studs

Size effect on the shear capacity of headed studs

Mechanical response of textile reinforced cementitious composite tubes under monotonic and cyclic loadings

Dependence of fracture size effect and projectile penetration on fiber content of FRC

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