Micromechanical Modeling on Compressive Behavior of Foamed Concrete

Rao, Fengrui; Zhang, Zhen; Ye, Guanbao; Liu, Jiangting

doi:10.1061/(asce)mt.1943-5533.0003935

Cited by 4 publications

(2 citation statements)

References 47 publications

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“…To describe the mechanical behavior and properties of foamed concrete under different loading conditions, scholars have established numerous constitutive models. F Rao et al developed a micromechanical constitutive model to simulate the mechanical behavior of foamed concrete under compression (Rao et al 2021). Y. Hao et al investigated the failure mechanism of fiber-reinforced high-performance fly ash foam concrete (FHFC) under uniaxial compression and derived a two-stage phenomenological constitutive model for FHFC through theoretical deduction (Hao et al 2023).…”

Section: Introductionmentioning

confidence: 99%

“…resultsFigure.1 shows the typical stress-strain curve of foamed cement paste(Rao et al 2021). As shown in figure.1, the stress-strain curve can be divided into four stages based on three characteristic strains, namely, EP represents the strain corresponding to the specimen entering the plastic stage, EM represents the strain corresponding to the peak stress, and EF represents the strain corresponding to the specimen entering the residual strength.Table.…”

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confidence: 99%

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Visco-elastic model of foamed cement paste under uniaxial compression

Ye,

Huo,

Zhang

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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Foamed cement pastes have been widely used in the backfilling projects, such as road widening and abutment embankment. However, due to its unique porous structures, there have been limit studies focused on developing mechanical model for predicting its engineering behavior. This study conducted a constitutive modeling for describing the mechanical behavior of foamed cement paste. Two types of mechanical element, i.e., elastic element and viscous element, were selected, and their combination was proposed to characterize the basic mechanical properties and behavior of foamed cement paste. By adjusting the combination rules (in series or in parallel) among the basic elements, a strain-based damage element and a visco-elastic-damage combination element model (VED model) were developed based on the MATLAB/Simulink platform. Through a comparison with experimental results, it is demonstrated that the proposed model effectively captures the mechanical behavior of foam concrete under uniaxial compressive loading.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%