The Experts below are selected from a list of 3315 Experts worldwide ranked by ideXlab platform

Hongzhi Zhang - One of the best experts on this subject based on the ideXlab platform.

  • experimentally validated meso scale fracture modelling of mortar using output from micromechanical models
    Cement & Concrete Composites, 2020
    Co-Authors: Hongzhi Zhang, Yidong Gan, Erik Schlangen, Branko Savija
    Abstract:

    Abstract This paper presents a validation process of the developed multi-scale modelling scheme on mortar composites. Special attention was paid to make the material structure of real and virtual mortar specimens comparable at the meso-scale. The input mechanical parameters of cement paste (both bulk cement paste and interfacial transition zone) at the meso-scale were derived from results of micromechanical modelling through a volume averaging approach. Two Constitutive Relations for local elements were assumed and tested. By comparing with the experiments, the model using linear-Elastic Constitutive Relation showed to be capable to reproduce the experimental load-displacement response satisfactorily in terms of the Elastic stage and peak load. However, in the non-Elastic stage a more realistic load-displacement curve can be simulated by considering the softening of cement paste using a step-wise approach. More importantly, the proposed multi-scale modelling scheme is validated by the experimental measurements. The proposed development offers the opportunity for the meso-scale model to become fully predictive.

Branko Savija - One of the best experts on this subject based on the ideXlab platform.

  • experimentally validated meso scale fracture modelling of mortar using output from micromechanical models
    Cement & Concrete Composites, 2020
    Co-Authors: Hongzhi Zhang, Yidong Gan, Erik Schlangen, Branko Savija
    Abstract:

    Abstract This paper presents a validation process of the developed multi-scale modelling scheme on mortar composites. Special attention was paid to make the material structure of real and virtual mortar specimens comparable at the meso-scale. The input mechanical parameters of cement paste (both bulk cement paste and interfacial transition zone) at the meso-scale were derived from results of micromechanical modelling through a volume averaging approach. Two Constitutive Relations for local elements were assumed and tested. By comparing with the experiments, the model using linear-Elastic Constitutive Relation showed to be capable to reproduce the experimental load-displacement response satisfactorily in terms of the Elastic stage and peak load. However, in the non-Elastic stage a more realistic load-displacement curve can be simulated by considering the softening of cement paste using a step-wise approach. More importantly, the proposed multi-scale modelling scheme is validated by the experimental measurements. The proposed development offers the opportunity for the meso-scale model to become fully predictive.

Erik Schlangen - One of the best experts on this subject based on the ideXlab platform.

  • experimentally validated meso scale fracture modelling of mortar using output from micromechanical models
    Cement & Concrete Composites, 2020
    Co-Authors: Hongzhi Zhang, Yidong Gan, Erik Schlangen, Branko Savija
    Abstract:

    Abstract This paper presents a validation process of the developed multi-scale modelling scheme on mortar composites. Special attention was paid to make the material structure of real and virtual mortar specimens comparable at the meso-scale. The input mechanical parameters of cement paste (both bulk cement paste and interfacial transition zone) at the meso-scale were derived from results of micromechanical modelling through a volume averaging approach. Two Constitutive Relations for local elements were assumed and tested. By comparing with the experiments, the model using linear-Elastic Constitutive Relation showed to be capable to reproduce the experimental load-displacement response satisfactorily in terms of the Elastic stage and peak load. However, in the non-Elastic stage a more realistic load-displacement curve can be simulated by considering the softening of cement paste using a step-wise approach. More importantly, the proposed multi-scale modelling scheme is validated by the experimental measurements. The proposed development offers the opportunity for the meso-scale model to become fully predictive.

Yidong Gan - One of the best experts on this subject based on the ideXlab platform.

  • experimentally validated meso scale fracture modelling of mortar using output from micromechanical models
    Cement & Concrete Composites, 2020
    Co-Authors: Hongzhi Zhang, Yidong Gan, Erik Schlangen, Branko Savija
    Abstract:

    Abstract This paper presents a validation process of the developed multi-scale modelling scheme on mortar composites. Special attention was paid to make the material structure of real and virtual mortar specimens comparable at the meso-scale. The input mechanical parameters of cement paste (both bulk cement paste and interfacial transition zone) at the meso-scale were derived from results of micromechanical modelling through a volume averaging approach. Two Constitutive Relations for local elements were assumed and tested. By comparing with the experiments, the model using linear-Elastic Constitutive Relation showed to be capable to reproduce the experimental load-displacement response satisfactorily in terms of the Elastic stage and peak load. However, in the non-Elastic stage a more realistic load-displacement curve can be simulated by considering the softening of cement paste using a step-wise approach. More importantly, the proposed multi-scale modelling scheme is validated by the experimental measurements. The proposed development offers the opportunity for the meso-scale model to become fully predictive.

Šavija B. - One of the best experts on this subject based on the ideXlab platform.

  • Experimentally validated meso-scale fracture modelling of mortar using output from micromechanical models
    'Elsevier BV', 2020
    Co-Authors: Zhang H., Xu Y., Gan Y., Schlangen E., Šavija B.
    Abstract:

    This paper presents a validation process of the developed multi-scale modelling scheme on mortar composites. Special attention was paid to make the material structure of real and virtual mortar specimens comparable at the meso-scale. The input mechanical parameters of cement paste (both bulk cement paste and interfacial transition zone) at the meso-scale were derived from results of micromechanical modelling through a volume averaging approach. Two Constitutive Relations for local elements were assumed and tested. By comparing with the experiments, the model using linear-Elastic Constitutive Relation showed to be capable to reproduce the experimental load-displacement response satisfactorily in terms of the Elastic stage and peak load. However, in the non-Elastic stage a more realistic load-displacement curve can be simulated by considering the softening of cement paste using a step-wise approach. More importantly, the proposed multi-scale modelling scheme is validated by the experimental measurements. The proposed development offers the opportunity for the meso-scale model to become fully predictive.Materials and Environmen