Using <scp>XFEM</scp> to model the effect of different axial compression on the hysteretic behaviour of the flexure‐dominant <scp>RC</scp> columns

Yu, Jiangtao; Zhan, Kaili; Li, Lingzhi; Yu, Kequan

doi:10.1002/tal.1465

Cited by 8 publications

(5 citation statements)

References 28 publications

(26 reference statements)

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“…Reinforced concrete refers to the use of aligned metallic bars in a concrete mix, where the bars play the essential role of increasing the composite's overall load-bearing capacity. The modeling of columns made of reinforced concrete showed that the XFEM can predict the start location and growth pattern of cracks when the structure is subjected to monotonic or cyclic loadings [60,61]. Chung et al [62] simulated a bending test of a reinforced concrete beam and demonstrated that the XFEM was able to initiate cracks in the majority of the locations experimentally observed.…”

Section: Xfem and Compositesmentioning

confidence: 99%

XFEM for Composites, Biological, and Bioinspired Materials: A Review

Vellwock,

Libonati

2024

Materials

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The eXtended finite element method (XFEM) is a powerful tool for structural mechanics, assisting engineers and designers in understanding how a material architecture responds to stresses and consequently assisting the creation of mechanically improved structures. The XFEM method has unraveled the extraordinary relationships between material topology and fracture behavior in biological and engineered materials, enhancing peculiar fracture toughening mechanisms, such as crack deflection and arrest. Despite its extensive use, a detailed revision of case studies involving XFEM with a focus on the applications rather than the method of numerical modeling is in great need. In this review, XFEM is introduced and briefly compared to other computational fracture models such as the contour integral method, virtual crack closing technique, cohesive zone model, and phase-field model, highlighting the pros and cons of the methods (e.g., numerical convergence, commercial software implementation, pre-set of crack parameters, and calculation speed). The use of XFEM in material design is demonstrated and discussed, focusing on presenting the current research on composites and biological and bioinspired materials, but also briefly introducing its application to other fields. This review concludes with a discussion of the XFEM drawbacks and provides an overview of the future perspectives of this method in applied material science research, such as the merging of XFEM and artificial intelligence techniques.

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Section: Xfem and Compositesmentioning

confidence: 99%

XFEM for Composites, Biological, and Bioinspired Materials: A Review

Vellwock,

Libonati

2024

Materials

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“…e rigid beam was mounted on the top of the specimens to transfer the vertical load. A load cell was connected to the hydraulic jack to monitor the change in the applied vertical load since the axial deformation of vertical members mainly depends on the axial compression ratio [35].…”

Section: Test Setupmentioning

confidence: 99%

Experimental Study on Seismic Strengthening of Confined Masonry Walls Using RPC

Wang

et al. 2019

Advances in Materials Science and Engineering

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Masonry structures without effective reinforcement are vulnerable to seismic excitation. An innovative strengthening technique was proposed for damaged and undamaged masonry walls. Six confined masonry units with two aspect ratios were tested under in-plane lateral cyclic loading, which consisted of two control walls, two original walls strengthened with reactive powder concrete (RPC-1), and two damaged walls repaired with RPC (RPC-2). The results of the specimens retrofitted with RPC demonstrated that the proposed technique significantly enhanced the seismic performance of masonry walls in terms of lateral strength, ductility, and energy dissipation. Furthermore, the two repaired specimens had a better distributed cracking pattern than the two strengthened specimens. The analysis of the results leads to a better understanding of the effect and mechanism of RPC seismic retrofitting for confined masonry walls.

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“…In addition, the pinching mechanism of RC columns under cyclic loading has been systematically investigated as well [7]. Moreover, the strain fluctuation and stress redistribution of steel bars and concrete in RC structures subjected to cyclic loadings can be obtained [8]. The opening and closing phenomenon of each crack can be effectively simulated at macro-scale [7,9].…”

Section: Introductionmentioning

confidence: 99%

XFEM-Based Multiscale Simulation on Monotonic and Hysteretic Behavior of Reinforced-Concrete Columns

Chen

Wang

et al. 2020

Applied Sciences

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The extended finite element method (XFEM) is efficient in simulating crack initiation and its evolution process for reinforced-concrete (RC) structures due to its ability to solve fracture problems. Moreover, the multiscale numerical simulation helps understand global and local failure behavior of RC structures simultaneously. In this study, the XFEM-based multiscale modeling approach was proposed to investigate the monotonic and hysteretic performance of RC columns. Firstly, two-scale models composed of fiber beam elements and XFEM-based solid elements with homogeneous material assumptions were established using compiled material subroutines for fiber beam elements. Secondly, the accuracy of XFEM-based two-scale analysis in predicting the hysteretic behavior of tested RC columns was verified by comparing the crack morphology and load-displacement curve obtained from tested specimens under different axial compression ratios (ACRs) and two-scale models using the concrete damaged plasticity (CDP) model. Thirdly, multiscale models of RC columns were constructed with fiber beam elements, XFEM-based solid elements and mesoscopic concrete models composed of mortar, interfacial transition zone (ITZ) and aggregates with different geometric shapes and distribution patterns. Finally, the XFEM-based multiscale simulation was employed to investigate the influence of mesoscale structure variation of concrete on both global behavior and local failure patterns of RC columns subjected to monotonic loading. The simulation results of multiscale models established with CDP model and XFEM were comparatively discussed in depth. The XFEM-based multiscale simulation developed in this study provides an efficient modeling approach for investigating the stochastic nature of cracking behavior in RC columns.

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Using XFEM to model the effect of different axial compression on the hysteretic behaviour of the flexure‐dominant RC columns

Cited by 8 publications

References 28 publications

XFEM for Composites, Biological, and Bioinspired Materials: A Review

XFEM for Composites, Biological, and Bioinspired Materials: A Review

Experimental Study on Seismic Strengthening of Confined Masonry Walls Using RPC

XFEM-Based Multiscale Simulation on Monotonic and Hysteretic Behavior of Reinforced-Concrete Columns

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