Maximum entropy-based stochastic micromechanical model for a two-phase composite considering the inter-particle interaction effect

Zhu, Huixin; Chen, Q.; Ju, J. W.; Yan, Zhiguo; Guo, Fenglin; Wang, Y. Q.; Jiang, Zhengwu; Zhou, Shuai; Wu, Bin

doi:10.1007/s00707-015-1375-6

Cited by 32 publications

(22 citation statements)

References 60 publications

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“…It is worth mentioning that a stochastic micromechanical model was introduced to study the randomness of the heterogeneous materials (Chen et al, 2015a(Chen et al, , 2018cZhu et al, 2015). Due to the limitations of the FOV in X-ray CT modality as well as the computational capability, the X-ray image-based numerical models are often of several orders of magnitude smaller than the laboratory samples.…”

Section: Determination Of Rvementioning

confidence: 99%

Micro-CT-based micromechanics and numerical homogenization for effective elastic property of ultra-high performance concrete

Luo

Liu

Qiao

et al. 2019

International Journal of Damage Mechanics

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A computational homogenization model using microstructures obtained from X-ray micro-CT is developed to estimate the porosity-based elastic properties of ultra-high performance concrete under freeze–thaw action. The model is transformed directly from micro-CT which is capable of reflecting realistic distribution of porosity and heterogeneities inside the ultra-high performance concrete. Factors are taken into consideration, including the determination of representative volume element, the position and numbers of representative volume element cubes, fiber orientation, image resolution, applied filter, and pore distribution. The relationship between the material internal structure and freeze–thaw resistance is studied at micro-scale. The volume-averaged homogenization approach is applied to calculate the effective properties of the ultra-high performance concrete which are compared with experimental data. It is demonstrated that the proposed model provides an effective tool to evaluate the elastic properties of the ultra-high performance concrete based on microstructural characterization data.

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Section: Determination Of Rvementioning

confidence: 99%

Micro-CT-based micromechanics and numerical homogenization for effective elastic property of ultra-high performance concrete

Luo

Liu

Qiao

et al. 2019

International Journal of Damage Mechanics

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“…For a multiphase composite, the multilevel homogenization process is usually employed to quantitatively estimate the composite effective properties (Ju and Chen, 1994a, b;Ju and Zhang, 1998;Li et al, 1999;Sun, 1999, 2001;Yanase, 2010, 2011;Chen et al, 2015a, b, c;Zhu et al, 2015).…”

Section: Multilevel Micromechanical Homogenizations For the Propertiementioning

confidence: 99%

A simplified multiscale damage model for the transversely isotropic shale rocks under tensile loading

Nezhad

Zhu

et al. 2016

International Journal of Damage Mechanics

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A simplified multiscale damage model is proposed for the transversely isotropic shale rocks under tensile loading. In this framework, the multiscale representations for the shale rocks are presented by introducing the microcrack-weakened equivalent solid with hierarchical microstructures, whose transversely isotropic properties are obtained by performing multilevel homogenization procedures. To simplify the calculation process for the damage induced properties, the equivalent isotropic medium is attained by applying the Voigt-Reuss-Hill averaging process to the transversely isotropic solid. Subsequently, the microcrack-induced

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“…Properties. Previously published studies have shown that a homogenization stepping scheme is an effective way to obtain the effective properties of multi-inclusion composites [28][29][30][31][32][33][34][35][36][37][38][39][40][41]. The multiphase micromechanical model used in the present study also employs a multilevel homogenization procedure.…”

Section: Multilevel Homogenization Scheme For Estimating Effectivementioning

confidence: 99%

An Improved Micromechanical Framework for Saturated Concrete Repaired by the Electrochemical Deposition Method considering the Imperfect Bonding

Chen

Jiang

Zhu

et al. 2016

Journal of Engineering

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The interfaces between the deposition products and concrete are not always well bonded when the electrochemical deposition method (EDM) is adopted to repair the deteriorated concrete. To theoretically illustrate the deposition healing process by micromechanics for saturated concrete considering the imperfect interfaces, an improved micromechanical framework with interfacial transition zone (ITZ) is proposed based on our recent studies. In this extension, the imperfect bonding is characterized by the ITZ, whose effects are calculated by modifying the generalized self-consistent model. Meanwhile, new multilevel homogenization schemes are employed to predict the effective properties of repaired concrete considering the ITZ effects. Moreover, modification procedures are presented to reach the properties of repaired concrete with ITZs in the dry state. To demonstrate the feasibility of the proposed micromechanical model, predictions obtained via the proposed micromechanical model are compared with those of the existing models and the experimental data, including results from extreme states during the EDM healing process. Finally, the influences of ITZ and deposition product on the healing effectiveness of EDM are discussed based on the proposed micromechanical model.

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Maximum entropy-based stochastic micromechanical model for a two-phase composite considering the inter-particle interaction effect

Cited by 32 publications

References 60 publications

Micro-CT-based micromechanics and numerical homogenization for effective elastic property of ultra-high performance concrete

Micro-CT-based micromechanics and numerical homogenization for effective elastic property of ultra-high performance concrete

A simplified multiscale damage model for the transversely isotropic shale rocks under tensile loading

An Improved Micromechanical Framework for Saturated Concrete Repaired by the Electrochemical Deposition Method considering the Imperfect Bonding

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