Fatigue-Induced Concrete Fracture Under Combined Compression And Shear Studied Using Standard Cylinder And Refined Punch-Through Shear Test Setup

Aguilar, Mario; Chudoba, Rostislav; Classen, Martin; Abedulgader, Baktheer; Becks, Henrik

doi:10.21012/fc11.092350

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…To better capture a wide range of loading configurations, several macro-scale continuum models have been developed by many authors (e.g., [27][28][29]). In these, fatigue damage is derived by a strain measure, such as total strain [30,31], plastic strain [32], or cumulative strain measure [25,[33][34][35][36]. These models have demonstrated the ability to effectively capture the main aspects of fatigue degradation in quasi-brittle materials.…”

Section: Introductionmentioning

confidence: 99%

Phase-Field Modeling of Fatigue Crack Propagation in Brittle Materials

Aldakheel

Schreiber

Müller

et al. 2022

Current Trends and Open Problems in Computational Mechanics

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The phase field method has gathered significant attention in the past decade due to its versatile applications in engineering contexts, including fatigue crack propagation modeling. Particularly, the phase field cohesive zone method (PF-CZM) has emerged as a promising approach for modeling fracture behavior in quasi-brittle materials, such as concrete. The present contribution expands the applicability of the PF-CZM to include the modeling of fatigue-induced crack propagation. This study critically examines the validity of the extended PF-CZM approach by evaluating its performance across various fatigue behaviours, encompassing hysteretic behavior, S-N curves, fatigue creep curves, and the Paris law. The experimental investigations and validation span a diverse spectrum of loading scenarios, encompassing pre-and post-peak cyclic loading, as well as low-and high-cyclic fatigue loading. The validation process incorporates 2D and 3D boundary value problems, considering mode I and mixed-modes fatigue crack propagation. The results obtained from this study show a wide range of validity, underscoring the remarkable potential of the proposed PF-CZM approach to accurately capture the propagation of fatigue cracks in concrete-like materials. Furthermore, the paper outlines recommendations to improve the predictive capabilities of the model concerning key fatigue characteristics.

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Section: Introductionmentioning

confidence: 99%

Phase-Field Modeling of Fatigue Crack Propagation in Brittle Materials

Aldakheel

Schreiber

Müller

et al. 2022

Current Trends and Open Problems in Computational Mechanics

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Stress configuration‐based classification of current research on fatigue of reinforced and prestressed concrete

Baktheer,

Goralski,

Hegger

et al. 2024

Structural Concrete

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The limited understanding of the fatigue behavior of reinforced and prestressed concrete members is one of the reasons why many structures do not reach their expected service life. Without a deeper theoretical understanding of the fatigue phenomena in the various fatigue process zones, reliable fatigue life predictions are not possible. This paper provides a classification of the major fatigue process zones and mechanisms in reinforced and prestressed concrete members, accompanied by a brief review of recent developments in design rules, experimental characterization, and modeling approaches specific to each fatigue process zone and mechanism. The limitations of current approaches to fatigue characterization and modeling are also discussed, highlighting the need for further research in this area.

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Fatigue‐induced stress redistribution in prestressed concrete beams modeled using the constitutive hypothesis of inter‐aggregate degradation

Baktheer,

Esfandiari,

Aguilar

et al. 2024

Fatigue Fract Eng Mat Struct

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Despite of intensive research on concrete fatigue, the transfer of fatigue characteristics determined at the material level to the structural level remains a challenging issue. In this paper, the propagation of fatigue‐induced damage through the concrete structure is analyzed using a microplane fatigue model for concrete recently developed by the authors. To this end, our recent experimental study in which the fatigue propagation was monitored at the structural level represented by prestressed concrete beams is used to derive a general interpretation of the stress redistribution process using of the developed model. The numerical studies show that the developed microplane fatigue model provides a powerful computational tool for in‐depth analysis of the correspondence between the fatigue behavior at the material and structural scales in a wide range of load configurations. In addition, the thermodynamically based constitutive model allows for the quantification of the energy dissipation during the process, revealing the possibility of deriving material‐specific energetic characteristics that can further help to make the predictions of fatigue life more accurate.

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Fatigue-Induced Concrete Fracture Under Combined Compression And Shear Studied Using Standard Cylinder And Refined Punch-Through Shear Test Setup

Cited by 3 publications

References 13 publications

Phase-Field Modeling of Fatigue Crack Propagation in Brittle Materials

Phase-Field Modeling of Fatigue Crack Propagation in Brittle Materials

Stress configuration‐based classification of current research on fatigue of reinforced and prestressed concrete

Fatigue‐induced stress redistribution in prestressed concrete beams modeled using the constitutive hypothesis of inter‐aggregate degradation

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