Numerical modeling of the fracture behavior of open cell foams

Y. J. Jin; T. J. Wang

doi:10.1142/S2047684112500194

Numerical modeling of the fracture behavior of open cell foams

Y. J. Jin
, T. J. Wang

School of Aerospace Engineering

Xi'an Jiaotong University

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The objective of this work is to numerically study the individual and mixed mode fracture behavior of open-cell foams. Three-dimensional tetrakaidecahedron model is adopted and finite element method is employed in analysis. The overall elastic properties of open-cell foams are numerically obtained. Then, modes I, II, III and mixed mode I-II fracture behavior of open-cell foams are numerically predicted respectively, in which both solid/hollow and square/circular strut cross-sections are considered. It is seen that the relationship between the overall critical stress intensity factor and the relative density of foam obeys power law for individual crack problems. Effects of the shape and the topology of strut cross-section are discussed in detail. For mixed mode I-II crack problem, the relationship between K_I/K_IC and K_II/K_IIC is obtained and the effect of the shape of strut cross-section is discussed.

Original language	English
Article number	1250019
Journal	International Journal of Computational Materials Science and Engineering
Volume	1
Issue number	2
DOIs	https://doi.org/10.1142/S2047684112500194
State	Published - 1 Jun 2012

Keywords

Foams
elastic deformation
fracture

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10.1142/S2047684112500194

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title = "Numerical modeling of the fracture behavior of open cell foams",

abstract = "The objective of this work is to numerically study the individual and mixed mode fracture behavior of open-cell foams. Three-dimensional tetrakaidecahedron model is adopted and finite element method is employed in analysis. The overall elastic properties of open-cell foams are numerically obtained. Then, modes I, II, III and mixed mode I-II fracture behavior of open-cell foams are numerically predicted respectively, in which both solid/hollow and square/circular strut cross-sections are considered. It is seen that the relationship between the overall critical stress intensity factor and the relative density of foam obeys power law for individual crack problems. Effects of the shape and the topology of strut cross-section are discussed in detail. For mixed mode I-II crack problem, the relationship between KI/KIC and KII/KIIC is obtained and the effect of the shape of strut cross-section is discussed.",

keywords = "Foams, elastic deformation, fracture",

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TY - JOUR

T1 - Numerical modeling of the fracture behavior of open cell foams

AU - Jin, Y. J.

AU - Wang, T. J.

PY - 2012/6/1

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N2 - The objective of this work is to numerically study the individual and mixed mode fracture behavior of open-cell foams. Three-dimensional tetrakaidecahedron model is adopted and finite element method is employed in analysis. The overall elastic properties of open-cell foams are numerically obtained. Then, modes I, II, III and mixed mode I-II fracture behavior of open-cell foams are numerically predicted respectively, in which both solid/hollow and square/circular strut cross-sections are considered. It is seen that the relationship between the overall critical stress intensity factor and the relative density of foam obeys power law for individual crack problems. Effects of the shape and the topology of strut cross-section are discussed in detail. For mixed mode I-II crack problem, the relationship between KI/KIC and KII/KIIC is obtained and the effect of the shape of strut cross-section is discussed.

AB - The objective of this work is to numerically study the individual and mixed mode fracture behavior of open-cell foams. Three-dimensional tetrakaidecahedron model is adopted and finite element method is employed in analysis. The overall elastic properties of open-cell foams are numerically obtained. Then, modes I, II, III and mixed mode I-II fracture behavior of open-cell foams are numerically predicted respectively, in which both solid/hollow and square/circular strut cross-sections are considered. It is seen that the relationship between the overall critical stress intensity factor and the relative density of foam obeys power law for individual crack problems. Effects of the shape and the topology of strut cross-section are discussed in detail. For mixed mode I-II crack problem, the relationship between KI/KIC and KII/KIIC is obtained and the effect of the shape of strut cross-section is discussed.

KW - Foams

KW - elastic deformation

KW - fracture

UR - https://www.scopus.com/pages/publications/85094217637

U2 - 10.1142/S2047684112500194

DO - 10.1142/S2047684112500194

M3 - 文章

AN - SCOPUS:85094217637

SN - 2047-6841

VL - 1

JO - International Journal of Computational Materials Science and Engineering

JF - International Journal of Computational Materials Science and Engineering

IS - 2

M1 - 1250019

ER -

Numerical modeling of the fracture behavior of open cell foams

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