Symmetric and asymmetric deformation transition in the regularly cell-structured materials. Part II: Theoretical study

Tantikom, Kanyatip; Aizawa, Tatsuhiko; Mukai, Toshiji

doi:10.1016/j.ijsolstr.2004.09.027

Cited by 8 publications

(3 citation statements)

References 14 publications

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“…In this way, high energy absorption will be realized. An analogous phenomenon is also found for metals (e.g., nickel-based superalloy [ 15 ] and copper [ 16 ]).…”

Section: Introductionsupporting

confidence: 54%

The Effect of Void Arrangement on the Pattern Transformation of Porous Soft Solids under Biaxial Loading

Qiu

Guo

et al. 2021

Materials

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Structural topology and loading condition have important influences on the mechanical behaviors of porous soft solids. The porous solids are usually set to be under uniaxial tension or compression. Only a few studies have considered the biaxial loads, especially the combined loads of tension and compression. In this study, porous soft solids with oblique and square lattices of circular voids under biaxial loadings were studied through integrated experiments and numerical simulations. For the soft solids with oblique lattices of circular voids, we found a new pattern transformation under biaxial compression, which has alternating elliptic voids with an inclined angle. This kind of pattern transformation is rarely reported under uniaxial compression. Introducing tensile deformation in one direction can hamper this kind of pattern transformation under biaxial loading. For the soft solids with square lattices of voids, the number of voids cannot change their deformation behaviors qualitatively, but quantitatively. In general, our present results demonstrate that void morphology and biaxial loading can be harnessed to tune the pattern transformations of porous soft solids under large deformation. This discovery offers a new avenue for designing the void morphology of soft solids for controlling their deformation patterns under a specific biaxial stress-state.

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“…In this way, high energy absorption will be realized. An analogous phenomenon is also found for metals (e.g., nickel-based superalloy [ 15 ] and copper [ 16 ]).…”

Section: Introductionsupporting

confidence: 54%

The Effect of Void Arrangement on the Pattern Transformation of Porous Soft Solids under Biaxial Loading

Qiu

Guo

et al. 2021

Materials

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“…The material of the blank is stainless steel 304 and its mechanical properties are listed in Table 4, in which is the density, is Young's modulus, ] is Poisson's ratio, and TAN is the tangent modulus. A bilinear isotropic hardening constitutive model depicted in Figure 3 is utilised for the blank as it is an approximation to the true stress-strain curve of the material and has been widely adopted in the nonlinear FEA [19][20][21].…”

Section: Constitutive Relationship Formentioning

confidence: 99%

Effect of Mesh on Springback in 3D Finite Element Analysis of Flexible Microrolling

Jiang

2015

Journal of Applied Mathematics

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In flexible microrolling, springback in thickness direction is a critical indicator to determine the forming quality. Accurate prediction of springback is one of the significant aspects in the finite element analysis of flexible microrolling. Meshing is a step of great importance in finite element analysis of manufacturing process as it directly determines the accuracy of the FEA results as well as the requested computational time. This paper presents a numerical study on revealing the mesh effects on the accuracy of springback estimation utilising ABAQUS/Standard for modelling and analyses. Two types of meshes with six mesh sizes for each mesh type are considered in this study and the optimal mesh type and mesh size have been found to obtain accurate value of springback while saving as much computational time as possible.

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“…The size effect is diminished when the specimen size of regularly cellstructured materials is greater than 5 Â 5 arrays in cells. [13][14][15] …”

Section: Selection Of Unit-cell Modelmentioning

confidence: 99%

Compressive Deformation Simulation of Regularly Cell-Structured Materials with Various Column Connectivity

Tantikom

Aizawa

2005

Mater. Trans.

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A finite element method is developed to understand the in-plane, quasi-static compressive deformation mechanism and to predict elastoplastic stress-strain responses of regularly cell-structured honeycombs. Temporal evolution of geometric configuration is also observed in series in order to understand its deformed pattern. Elasto-plastic model predicts quantitatively the compression behavior of copper cell-structured materials. Fairly good agreement with experimental results assures the validity of the present approach. Four different cell geometries are employed to discuss the effect of column-connectivity in a unit cell on the initial and shear localization behavior of cellular materials. In the case of cellular materials with four-edge connectivity, their initial and post-yielding behaviors are governed by buckling and bending deformation of one selected column. In the case of six-edge connected cellular materials, a set of columns is selected among six in the unit cell to make buckling and bending deformation in the dependent manner on loading directions. This leads to plastic anisotropy of this type of cellular materials.

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Symmetric and asymmetric deformation transition in the regularly cell-structured materials. Part II: Theoretical study

Cited by 8 publications

References 14 publications

The Effect of Void Arrangement on the Pattern Transformation of Porous Soft Solids under Biaxial Loading

The Effect of Void Arrangement on the Pattern Transformation of Porous Soft Solids under Biaxial Loading

Effect of Mesh on Springback in 3D Finite Element Analysis of Flexible Microrolling

Compressive Deformation Simulation of Regularly Cell-Structured Materials with Various Column Connectivity

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