A jigsaw puzzle framework for homogenization of high porosity foams

作者：Doskar Martin; Novak Jan^*

来源：Computers & Structures, 2016, 166: 33-41.

DOI：10.1016/j.compstruc.2016.01.003

• Geometry synthesis
• RVE size
• Homogenization
• Wang tiles
• Metallic foams
• Alporas (R)

An approach to homogenization of high porosity metallic foams is explored. The emphasis is on the Alporas (R) foam and its representation by means of two-dimensional wire-frame models. The guaranteed upper and lower bounds on the effective stiffness coefficients are derived by the first-order homogenization with the Uniform and Minimal Kinematic Boundary Conditions at heart. This is combined with the method of Wang tilings to generate sufficiently large material samples along with their finite element discretization. The obtained results are compared to experimental and numerical data available in literature and the suitability of the two-dimensional setting itself is discussed.

• 出版日期2016-4-1