The Influence of Varying Cell Sizes on the Tensile Behaviour of Open-Cell Foams

被引：0

作者：

Sieber, T. ^{[1
]}

Liedke, T. ^{[1
]}

Muehlich, U. ^{[1
]}

Ballani, F. ^{[2
]}

机构：

[1] TU Bergakad Freiberg, Inst Mech & Fluid Dynam, Lampadiusst 4, D-09599 Freiberg, Germany

[2] TU Bergakad Freiberg, Inst Stochast, D-09599 Freiberg, Germany

来源：

MATERIALS PERFORMANCE AND CHARACTERIZATION | 2013年 / 2卷 / 01期

关键词：

microstructure; random Laguerre tessellation; open-cell foam model; tensile behaviour; finite elements; numerical simulation;

D O I：

10.1520/MPC20120028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The aim of this paper is to study the mechanical tensile properties of open-cell foam structures on the cell size variation by numerical simulations. For this purpose, random Laguerre tessellations were used, which allow the creation of foam structures with strongly varying cell sizes. First, a model was fitted to real open-cell foams based on x-ray computed tomography (XCT) scans by parameter optimization. Two more virtual foam models with different cell size variations were produced according to the first fitted one. Tensile properties of the model realizations were computed by finite- element analysis using beam elements. The numerical results were presented and discussed.

引用

页码：45 / 56

页数：12

共 48 条

[1] Compressive and tensile behaviour of aluminum foams [J].

Andrews, E ;

Sanders, W ;

Gibson, LJ .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1999, 270 (02) :113-124

[2] THE MECHANICAL-PROPERTIES OF CELLULAR SOLIDS [J].

ASHBY, MF .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1983, 14 (09) :1755-1769

[3] POWER DIAGRAMS - PROPERTIES, ALGORITHMS AND APPLICATIONS [J].

AURENHAMMER, F .

SIAM JOURNAL ON COMPUTING, 1987, 16 (01) :78-96

[4] Mechanical properties and non-homogeneous deformation of open-cell nickel foams: application of the mechanics of cellular solids and of porous materials [J].

Badiche, X ;

Forest, S ;

Guibert, T ;

Bienvenu, Y ;

Bartout, JD ;

Ienny, P ;

Croset, M ;

Bernet, H .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 289 (1-2) :276-288

[5]

Bezrukov A, 2002, PART PART SYST CHAR, V19, P111, DOI 10.1002/1521-4117(200205)19:2<111::AID-PPSC111>3.0.CO

[6]

2-M

[7] Computational modelling of irregular open-cell foam behaviour under impact loading [J].

Borovinsek, M. ;

Ren, Z. .

MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK, 2008, 39 (02) :114-120

[8]

Chu Z., 2000, P 14 ASCE ENG MECH D

[9]

Coster M., 2005, IMAGE ANAL STEREOL, V24, P105, DOI [10.5566/ias.v24.p105-116, DOI 10.5566/IAS.V24.P105-116]

[10] Isotropic constitutive models for metallic foams [J].

Deshpande, VS ;

Fleck, NA .

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 2000, 48 (6-7) :1253-1283

← 1 2 3 4 5 →