Numerical Assessment of Ultra-high Performance Concrete Material

Yin, Hor; Shirai, Kazutaka; Teo, Wee

doi:10.1088/1757-899x/241/1/012004

Cited by 5 publications

(2 citation statements)

References 13 publications

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“…A concrete damage model (Mat-72r3 in LS-DYNA) was employed and calibrated for both the NC and UHPC. This concrete model Mat-72r3 is a plasticity-based constitutive model [9] and its reliability has been shown in [10,11]. For longitudinal rebar, an elastic-perfectly-plastic model (Mat-03 in LS-DYNA) was used.…”

Section: Finite Element Modelling and Methodsmentioning

confidence: 99%

Response of UHPC-Concrete Composite Structural Members Using Implicit and Explicit Finite Element Method

Yin

Shirai

Teo³

2019

KEM

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This paper investigates the response of UHPC-concrete composite structural members using implicit and explicit finite element (FE) methods. Both methods were prepared and conducted individually for the FE analysis under static loading condition. Results of the implicit and explicit analysis were compared to experimental results conducted in previous study. Both the implicit and explicit methods showed similar overall response with fair accuracy compared with the experimental results. In addition, the effective plastic strain obtained from the FE simulation was in good agreement with the damage cracking pattern in the experiment.

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Section: Finite Element Modelling and Methodsmentioning

confidence: 99%

Response of UHPC-Concrete Composite Structural Members Using Implicit and Explicit Finite Element Method

Yin

Shirai

Teo³

2019

KEM

Self Cite

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“…The parameter values of concrete in the CDP are shown in the following Table 5. Several studies investigated the behavior of UHPC material, such as that of Yin et al (2017), who proposed a calibrated model for UHPC material [38]. In this study, the stress-strain relationship curve given in Yang et al (2008) [39] was used to describe the uniaxial compression behavior of concrete.…”

Section: The Abaqus Analysismentioning

confidence: 99%

Full-Scale Experimental Study on Flexural Performance of the New Precast UHPC Diaphragm Slab in Utility Tunnels

Cheng

Deng²,

Jiang

et al. 2023

Buildings

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In this paper, a bending test of a precast ultra-high-performance concrete (UHPC) diaphragm slab was carried out. The test revealed that the flexural failure process of specimens under the action of a positive bending moment can be divided into three stages: the elastic, crack-propagation, and yield stages. The first stiffness reduction of the structure was caused by cracks at the bottom of the diaphragm slab, while the second stiffness drop resulted from the yielding of the bottom longitudinal rebars. During the loading process, the ultimate bearing capacity was 3.75 times higher than the design load value (150 kN vs. 40 kN). Additionally, a nonlinear finite element model was established using Abaqus software validated by the test and exploiting parameter analysis. Based on this model, the initial crack stress of the actual slab was determined to be 5.12 MPa. Parameter analysis indicated that the shear strength of the diaphragm slab was stronger than the flexural strength, and the diaphragm slab’s bearing capacity could be improved by increasing the ratio of bottom longitudinal reinforcement. This research confirmed that the new UHPC diaphragm slab used in Guangzhou Smart City is safe, and it also helped the design of similar UHPC slabs for utility tunnels.

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Numerical modeling and design sensitivity of structural and seismic behavior of UHPC bridge piers

Naeimi

Moustafa

2020

Engineering Structures

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Numerical Assessment of Ultra-high Performance Concrete Material

Cited by 5 publications

References 13 publications

Response of UHPC-Concrete Composite Structural Members Using Implicit and Explicit Finite Element Method

Response of UHPC-Concrete Composite Structural Members Using Implicit and Explicit Finite Element Method

Full-Scale Experimental Study on Flexural Performance of the New Precast UHPC Diaphragm Slab in Utility Tunnels

Numerical modeling and design sensitivity of structural and seismic behavior of UHPC bridge piers

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