Application of combinational sphere element in meso-mechanical analysis of cemented particulate composite

Ling, Xi; Li, Huijian; Yu, Wei; Yang, Xiao; Ya-nan, Zhang; Wang, Xiaoxing

doi:10.1016/j.compstruct.2015.05.063

Cited by 2 publications

(12 citation statements)

References 9 publications

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“…Liang [ 31 ] proposed a CSE model based on the special structure of cemented particulate composite. The model considers a pair of adjacent particles in the material and the matrix between them as a whole, and this whole structure is called a CSE, as shown in Figure 1 b.…”

Section: 3d Micromechanical Modelmentioning

confidence: 99%

“…According to reference [ 31 ], the axial and tangential deformation of matrix and particle can be expressed as follows:

where

and

are shear modulus and Poisson’s ratio of matrix and particle, respectively.…”

Section: 3d Micromechanical Modelmentioning

confidence: 99%

“…Therefore, we used the 3D model after adding torsion stiffness to correct the Equation (18) of normal stress and shear stress obtained from the two-dimensional model in reference [ 31 ]. Among them,

are the stress distribution coefficients.…”

Section: 3d Micromechanical Modelmentioning

confidence: 99%

“…It can be seen that the CSE method can calculate the mechanical properties of granular composites more accurately, and the 3D-RBSN model can accurately reflect the mechanical properties of the CSE. Compared with the two-dimensional model in reference [ 31 ], which can only describe the plane structure, the three-dimensional model can describe the mechanical properties of materials more accurately. It can be seen from the chart data that the elastic modulus of the tetrahedral arrangement was greater than that of the hexahedral arrangement, indicating that the former has greater rigidity and better mechanical properties.…”

Section: Epoxy Resin Glass Beads Mechanical Propertiesmentioning

confidence: 99%

“…Based on the above meso-mechanical model and beam network model, Liang [ 31 ] proposed a new theory of composite spherical elements (CSE). The theory combines the mesoscopic mechanics analysis method with the macro-analysis method of the grillage model, considers the bending stiffness of the CSE, equates the CSE with the rigid beam-spring model and assembles it into a plane network model, effectively calculates the elastic properties of the granular composite material, and simulates the fracture damage of the material by using the finite element software.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical Properties of Cemented Particulate Composite: A 3D Micromechanical Model

Tao

Ling

et al. 2021

Materials

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Cemented particulate composite is a kind of composite material with high strength, high energy absorption, and multifunctional characteristics, which is widely used in engineering practice. The calculation of the mechanical properties of granular composites based on theoretical methods has always been a topic of discussion. A micromechanical model with a three-dimensional rigid beam-spring network (3D-RBSN) is proposed here. The stiffness matrix of the model was calculated theoretically. The model was applied to the analysis of the mechanical properties of composites material with glass beads and epoxy resin. The results indicate that the 3D-RBSN model can effectively predict the mechanical properties of composite materials, such as Young’s modulus and Poisson’s ratio. Furthermore, the damage evolution process of cemented particulate composite with initial defects was analyzed based on the 3D-RBSN model.

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Section: 3d Micromechanical Modelmentioning

confidence: 99%

“…According to reference [ 31 ], the axial and tangential deformation of matrix and particle can be expressed as follows:

where

and

are shear modulus and Poisson’s ratio of matrix and particle, respectively.…”

Section: 3d Micromechanical Modelmentioning

confidence: 99%