کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1583131 | 1514884 | 2008 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructure based model for permeability predictions of open-cell metallic foams via homogenization
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
To predict effective permeabilities of open-cell foams, produced by a SlipReactionFoamSintering (SRFS)-process, a multi-scale approach based on the homogenization method is applied. This formulation allows to calculate effective Darcy permeabilities by solving special Stokes flow problems on a unit cell. Starting from a detailed foam description by tomographic images, a new procedure based on a spectral analysis of the foam microstructure is presented in order to derive symmetric and non-symmetric unit cell models of the foam. Effective permeabilities are determined by using these unit cell models for a representative iron-based SlipReaction (SR)-foam sample. The analysis of these predictions leads to define one, rather simple, unit cell model suitable for further stochastic homogenization simulations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 472, Issues 1â2, 15 January 2008, Pages 214-226
Journal: Materials Science and Engineering: A - Volume 472, Issues 1â2, 15 January 2008, Pages 214-226
نویسندگان
Gottfried Laschet, Tatyana Kashko, Stefanie Angel, Josef Scheele, Reimo Nickel, Wolfgang Bleck, Kirsten Bobzin,