Post-peak fatigue performance of steel fiber reinforced concrete under flexure

Germano, Federica; Tiberti, Giuseppe; Plizzari, Giovanni

doi:10.1617/s11527-015-0783-3

Cited by 65 publications

(77 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A total amount of 528 beams, grouped into 81 series, were considered to prepare a complete database with the results obtained in several experimental campaigns carried out at the University of Brescia …”

Section: Data Collectionmentioning

confidence: 60%

An overview of the flexural post‐cracking behavior of steel fiber reinforced concrete

Tiberti

Germano

Mudadu

et al. 2017

Structural Concrete

Self Cite

View full text Add to dashboard Cite

This paper provides a general overview of recent developments in the study of the flexural post-cracking behavior of steel fiber reinforced concrete (SFRC). The results of three-point-bending tests (3PBTs) performed at the University of Brescia during the last lustrum were collected in a broad database consisting of 81 series for a total amount of 528 beams. Several experimental parameters were investigated: strength of concrete matrix, fiber dosage, fiber aspect ratio, fiber filament tensile strength, as well as fiber orientation. The latter was deeply studied by means of image analysis of cut cross sections. The results, discussed in terms of post-cracking flexural residual strengths, highlight that all the parameters studied contribute to the post-cracking performances exhibited by SFRCs.

show abstract

Section: Data Collectionmentioning

confidence: 60%

An overview of the flexural post‐cracking behavior of steel fiber reinforced concrete

Tiberti

Germano

Mudadu

et al. 2017

Structural Concrete

Self Cite

View full text Add to dashboard Cite

show abstract

“…In concrete, this stage involves the defects within the matrix; in the case of the self-healing system here studied, it most likely involved the defects at the interface between the PU and the crack faces and inside the PU foam, rather than the defects in the mortar matrix surrounding the crack, though it cannot be excluded that they also provided a contribution. It is worth noting that, in literature, tests conducted over pre-cracked fibre reinforced concrete under flexure lacked this stage, because the initial loading already caused the opening of the crack [55]. So, the experimental evidence of Stage (I) in cementitious mortar This three-stage behaviour is typically observed in plain or fibre-reinforced concrete under compressive, tensile and flexural fatigue loading [36,[49][50][51][52][53][54].…”

Section: Cyclic Reloadingmentioning

confidence: 99%

Behaviour of Pre-Cracked Self-Healing Cementitious Materials under Static and Cyclic Loading

2020

View full text Add to dashboard Cite

Capsule-based self-healing is increasingly being targeted as an effective way to improve the durability and sustainability of concrete infrastructures through the extension of their service life. Assessing the mechanical and durability behaviour of self-healing materials after damage and subsequent autonomous repair is essential to validate their possible use in real structures. In this study, self-healing mortars containing cementitious tubular capsules with a polyurethanic repairing agent were experimentally investigated. Their mechanical behaviour under both static and cyclic loading was analysed as a function of some factors related to the capsules themselves (production method, waterproof coating configuration, volume of repairing agent stored) or to the specimens (number, size and distribution of the capsules in the specimen). Their mechanical performances were quantified in terms of recovery of load-bearing capacity under static conditions and number of cycles to failure as a function of the peak force under cyclic conditions. Positive results were achieved, with a maximum load recovery index up to more than 40% and number of cycles to failure exceeding 10,000 in most cases, with peak force applied during cyclic loading at least corresponding to 70% of the estimated load-bearing capacity of the healed samples.

show abstract

“…During fracture the stresses in concrete are transmitted from matrix to the fibers. These fibers restrain the further growth of the crack and contribute to the energy absorption capacity of the concrete, see [5,6]. But in general the effective usage of HPCs is not established yet due to lack of knowledge with respect of formation and evolution of failure.…”

Section: Introductionmentioning

confidence: 99%

Analysis of pullout behavior of single steel fibers embedded in concrete using phase‐field modeling

Pise

Brands

Gebuhr

et al. 2018

Proc Appl Math and Mech

View full text Add to dashboard Cite

In this contribution, a constitutive framework of elasto-plastic phase-field model for fracture is applied to simulation of pullout test of single steel fiber embedded in concretes and compare it to the experimental results. For the description of the mechanical behavior the Drucker-Prager plasticity model is used. The aim is to examine the pullout behavior of a single steel fiber and its influence on the overall material behavior. Therefore, the mechanical behavior of concrete is studied in experimental single fiber pullout test. The predictive capability of the above mentioned model is analyzed in detail by simulating a single fiber pullout test and compared against the experimental data.

show abstract

Post-peak fatigue performance of steel fiber reinforced concrete under flexure

Cited by 65 publications

References 11 publications

An overview of the flexural post‐cracking behavior of steel fiber reinforced concrete

An overview of the flexural post‐cracking behavior of steel fiber reinforced concrete

Behaviour of Pre-Cracked Self-Healing Cementitious Materials under Static and Cyclic Loading

Analysis of pullout behavior of single steel fibers embedded in concrete using phase‐field modeling

Contact Info

Product

Resources

About