Fracture analysis of fiber reinforced concrete structures in the micropolar peridynamic analysis framework

Yaghoobi, Amin; Chorzepa, Mi G.

doi:10.1016/j.engfracmech.2016.11.004

Cited by 106 publications

(28 citation statements)

References 20 publications

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“…Sadowski and Pankowski [223] developed PD models to investigate nanoindentation of ceramic composites. The failure analysis of concrete structures and cementitious composites using PD can be found in [102,224,225].…”

Section: Compositesmentioning

confidence: 99%

Peridynamics review

Javili

Morasata

Öterkuş

et al. 2018

Mathematics and Mechanics of Solids

239

109

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Peridynamics (PD) is a novel continuum mechanics theory established by Stewart Silling in 2000. The roots of PD can be traced back to the early works of Gabrio Piola according to dell’Isola et al. PD has been attractive to researchers as it is a non-local formulation in an integral form, unlike the local differential form of classical continuum mechanics. Although the method is still in its infancy, the literature on PD is fairly rich and extensive. The prolific growth in PD applications has led to a tremendous number of contributions in various disciplines. This manuscript aims to provide a concise description of the PD theory together with a review of its major applications and related studies in different fields to date. Moreover, we succinctly highlight some lines of research that are yet to be investigated.

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Section: Compositesmentioning

confidence: 99%

Peridynamics review

Javili

Morasata

Öterkuş

et al. 2018

Mathematics and Mechanics of Solids

239

109

View full text Add to dashboard Cite

show abstract

“…A micropolar PD model to better simulate damage in concrete was introduced in [49]. Later, this model was employed in [50] for simulating fracture in short fiber-reinforced concrete. The authors of [50] introduced a semi-discrete method to represent the fiber-concrete interaction and considered the random nature of concrete by reducing the particle strength of some PD nodes.…”

Section: Introductionmentioning

confidence: 99%

“…Later, this model was employed in [50] for simulating fracture in short fiber-reinforced concrete. The authors of [50] introduced a semi-discrete method to represent the fiber-concrete interaction and considered the random nature of concrete by reducing the particle strength of some PD nodes. A formulation of pressure-dependent PD plasticity model was shown to work well for compression, impact, and spallation of concrete structures [51].…”

Section: Introductionmentioning

confidence: 99%

A stochastic multiscale peridynamic model for corrosion-induced fracture in reinforced concrete

Zhao

Chen

Mehrmashhadi

et al. 2020

Engineering Fracture Mechanics

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Concrete fracture caused by corrosion of reinforcing bars may cause subsequent structure failure. To better predict this process, we introduce a partially-homogenized stochastic peridynamic model with the simplest constitutive relation (linear elastic with brittle failure). The model links microscale information (phase volume fractions of mortar, aggregates, interfaces) to macroscale fracture behavior, while costing the same as a fully homogenized model. We show, and explain why a fully-homogenized peridynamic model fails to capture the correct concrete fracture modes/patterns, while the new model succeeds. The multiscale model predicts the evolution of fracture in reinforced concrete caused by corrosion products expansion in samples with a single or multiple rebars. Non-uniform expansion of corrosion products is enforced here as preset, incremental radial displacements. The computed fracture patterns and the order in which various cracks develop match what is seen in experiments. The model's robustness is tested under different stochastic realizations and discretization grid types.

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“…The addition of fiber to concrete changes some of its mechanical properties, such as the highest composite tensile strength, flexural strength, impact resistance and tenacity (Neves et al, 2013;Salvador & Figueiredo, 2013;Pyo et al, 2015;Yoo et al, 2015;Mostafazadeh & Abolmaali, 2016;Yaghoobi & Chorzepa, 2017;Ghahremannejad et al, 2018;Leone et al, 2018;Monteiro et al, 2018;Ehrenbring et al, 2018) and, consequently, resistance to cracking.…”

Section: Introductionmentioning

confidence: 99%

Fiber-reinforced concrete for the flat bottom of silos

Constantino

Neto

Nóbrega

et al. 2020

Rev. bras. eng. agríc. ambient.

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The use of synthetic fibers as reinforcement for concrete replacing the steel reinforcement has been diffused worldwide in several applications, gaining prominence in the application for industrial floors, tunnel linings, road pavements, etc., i.e., continuous structures in contact with soil that require performance in the elastic medium. The present study investigated the applicability of concrete reinforced with synthetic fibers in the bottom slab of silos supported directly on the ground, being composed of an experimental study and a case study. The experimental study consisted of the analysis of the mechanical behavior of this concrete by testing three concentrations of synthetic fibers (3.0, 4.5 and 6.0 kg m -3 ) in a conventional simple concrete matrix. The case study consisted of the design of this part in conventional reinforced concrete and concrete reinforced with synthetic fibers with the objective of performing an economic comparison between the two projects. The experimental results showed that the fiber concentration that contributed to a better mechanical performance of the concrete matrix was 3.0 kg m -3 . The case study showed that the most economical design was the one made with fiber-reinforced concrete.Concreto reforçado com fibras para o fundo plano de silos RESUMO: O emprego de fibras sintéticas como reforço para concretos em substituição das armaduras de aço vem sendo difundido mundialmente em diversas aplicações, ganhando destaque na aplicação para pisos industriais, revestimentos de túneis, pavimentos rodoviários, etc., isto é, estruturas contínuas em contato com o solo que requerem desempenho no meio elástico. O presente trabalho investiga a aplicabilidade do concreto reforçado com fibras sintéticas na laje de fundo de silos apoiados diretamente sobre o solo, sendo o mesmo composto por um estudo experimental e um estudo de caso. O estudo experimental resume-se na análise do comportamento mecânico desse concreto, testando-se três concentrações de fibras sintéticas (3.0, 4.5 e 6.0 kg m -3 ) numa matriz de concreto simples convencional. O estudo de caso consiste no dimensionamento dessa peça em concreto armado convencional e concreto reforçado com fibras sintéticas, com o objetivo de realizar um comparativo econômico entre os dois projetos. Os resultados experimentais mostraram que a concentração de fibras que contribuiu para melhor desempenho mecânico da matriz de concreto foi o de 3.0 kg m -3 . O estudo de caso mostrou que o projeto mais econômico foi o dimensionado com concreto reforçado com fibras. Palavras-chave: comportamento mecânico, dimensionamento, materiais alternativos

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Fracture analysis of fiber reinforced concrete structures in the micropolar peridynamic analysis framework

Cited by 106 publications

References 20 publications

Peridynamics review

Peridynamics review

A stochastic multiscale peridynamic model for corrosion-induced fracture in reinforced concrete

Fiber-reinforced concrete for the flat bottom of silos

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