Tension softening of fibre-reinforced cementitious composites

Lange-Kornbak, D.; Karihaloo, Bhushan Lal

doi:10.1016/s0958-9465(97)00027-9

Cited by 28 publications

(8 citation statements)

References 17 publications

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“…Tests showed that the mixture has a smaller strain hardening region than expected. [6][7][8] This is attributed to the reduced number of microcracks formed in the material prior to the formation of a macrocrack.…”

Section: Discussionmentioning

confidence: 99%

CARDIFRC^® – Development and mechanical properties. Part III: Uniaxial tensile response and other mechanical properties

Benson

Karihaloo

2005

Magazine of Concrete Research

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Part III of this three-part paper about CARDIFRC 1 , a class of high performance short steel fibre-reinforced cementitious composites (HPFRCCs), deals with the measurement of the tensile response of CARDIFRC 1 mixes on a specially developed specimen geometry and loading arrangement. It also compares the measured mechanical properties (Young's modulus, E, compressive strength, f c , tensile strength, f t , specific fracture energy, G F ) with the theoretically predicted values using micromechanical relations.

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Section: Discussionmentioning

confidence: 99%

CARDIFRC^® – Development and mechanical properties. Part III: Uniaxial tensile response and other mechanical properties

Benson

Karihaloo

2005

Magazine of Concrete Research

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“…Li and Li [9] proposed a model based on continuum damage mechanics for the tensile behaviour of fibre reinforced concrete. Lange-Kornback and Karihaloo [10] proposed a model which combined fracture mechanics and a statistical based fibre bridging approach to represent the softening tensile behaviour of FRC.…”

Section: Introductionmentioning

confidence: 99%

A plastic-damage constitutive model for the finite element analysis of fibre reinforced concrete

Mihai

Jefferson

Lyons

2016

Engineering Fracture Mechanics

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A unique constitutive model for fibre reinforced concrete (FRC) is presented, which combines a number of mechanics-based sub models for the simulation of directional cracking, rough crack contact and the crack-bridging action of fibres. The model also contains a plasticity component to simulate compressive behaviour. The plasticity component employs a frictional hardening/softening function which considers the variation of compressive strength and strain at peak stress with fibre content. Numerical results from a range of single-point and finite element simulations of experimental tests show that the model captures the characteristic behaviour of conventional fibre reinforced concrete with good accuracy.

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“…Recently, as a way to make up for these weak points, many research studies on strain-hardening cementitious composites (SHCCs) have been conducted in order to give higher tensile strength and ductility to cement composites by mixing reinforcing fibre into cement composites, which can create a great number of microcracks and prevent brittle failure based on stress concentration (Lange-Kornbak and Karihaloo, 1997;Li et al, 2000;Maalej et al, 1995;Shannag et al, 1997;Singh et al, 2004;Yun et al, 2007). These material characteristics of SHCCs can affect even the seismic performance and durability of building structures (Fischer and Li, 2002;Li et al, 1994;Maalej et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Shear performance of precast SHCC infill walls for seismic retrofitting of non-ductile frames

Kim

2010

Magazine of Concrete Research

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Infilled frames have been investigated by many researchers during the last few decades. It is noted that frame structures incorporating infill walls have shown definite economic and performance advantages over conventional rigid-frame structures when the structures are required to resist large lateral loads due to earthquake ground motion. The objectives of this study are to evaluate the effect of notches in the infill walls and to investigate the effect of the ductility of cementitious composites, particularly strain hardening and multiple cracking, on the seismic performance of infill walls subjected to displacement reversals. The experimental investigation consisted of cyclic loading tests on four 1/3-scale models of infill walls. Material ductility and notches in the infill walls were the main variables in the test. In the test results, as expected, strain-hardening cementitious composite infill wall specimens showed multiple crack patterns due to the bridging of fibres and stress redistribution in the cement matrix. Although the strain-hardening cementitious composite infill wall had a less effective section near the notched mid-section, it showed a higher strength and energy dissipation capacity than those of the reinforced concrete infill wall specimen without a notched mid-section.

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Tension softening of fibre-reinforced cementitious composites

Cited by 28 publications

References 17 publications

CARDIFRC^® – Development and mechanical properties. Part III: Uniaxial tensile response and other mechanical properties

CARDIFRC^® – Development and mechanical properties. Part III: Uniaxial tensile response and other mechanical properties

A plastic-damage constitutive model for the finite element analysis of fibre reinforced concrete

Shear performance of precast SHCC infill walls for seismic retrofitting of non-ductile frames

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Tension softening of fibre-reinforced cementitious composites

Cited by 28 publications

References 17 publications

CARDIFRC® – Development and mechanical properties. Part III: Uniaxial tensile response and other mechanical properties

CARDIFRC® – Development and mechanical properties. Part III: Uniaxial tensile response and other mechanical properties

A plastic-damage constitutive model for the finite element analysis of fibre reinforced concrete

Shear performance of precast SHCC infill walls for seismic retrofitting of non-ductile frames

Contact Info

Product

Resources

About

CARDIFRC^® – Development and mechanical properties. Part III: Uniaxial tensile response and other mechanical properties

CARDIFRC^® – Development and mechanical properties. Part III: Uniaxial tensile response and other mechanical properties