Effective failure behavior of an analytical and a numerical model for closed-cell foams

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:97-98

Article

Fahlbusch, Nina-Carolin¹  Grenestedt, Joachim L.²  Becker, Wilfried¹ 

[1] Tech Univ Darmstadt, Fachgebiet Strukturmech, Franziska Braun Str 7, D-64287 Darmstadt, Germany

[2] Lehigh Univ, Dept Mech Engn & Mech, 19 Mem Dr West, Bethlehem, PA 18015 USA

关键词: Failure surface;    Closed-cell foams;    Analytical and numerical homogenization;   

DOI  :  10.1016/j.ijsolstr.2016.07.007

来源: Elsevier

【 摘 要 】

The effective failure behavior of an analytical and a numerical model for closed-cell foams is calculated. The analytical model is perfect in the sense that geometrical imperfections which are known from real foams are neglected. The numerical results are shown for two models with an initial geometry of a tetrakaidecahedron. One model is based on a perfect geometry, another model considers irregularities. The focus of this work is the comparison of the models and the analysis of the failure surface these models predict. (C) 2016 Elsevier Ltd. All rights reserved.

【 授权许可】

Free