The 9th International Conference on Multiscale Materials Modeling

講演情報

Symposium

E. Deformation and Fracture Mechanism of Materials

[SY-E1] Symposium E-1

2018年10月29日(月) 13:30 〜 15:15 Room2

Chairs: William A. Curtin(LAMMM, EPFL, Switzerland), Liang Qi(University of Michigan, United States of America)

[SY-E1] Nanoscaled Matrix-Inclusions-Composites

Konrad Schneider1, Swantje Bargmann2 (1.Institute of Continuum and Material Mechanics, Hamburg University of Technology, Germany, 2.Chair of Solid Mechanics, University of Wuppertal, Germany)

Tailor-Made Multi-Scale Materials Systems are predicted to achieve ultimate properties such as scratch-proof surfaces, ultra lightweight stable structures or resistance against extreme heat. However, the origin of theses exceptional characteristics most likely emerges from the hierarchal structure of these substances. Starting at the nano-scale hard, stiff, strong and at the same time very lightweight structures are obtainable, cf. [1]. Often it is a vague procedure to explore the many unknown adjustment options like morphology, material combination etc. which would result in desired properties.

This contribution focuses on so called matrix-inclusion nano-composites. Herein state of the art generation procedures of randomized representative volume elements, featuring a fast, robust and highly automatable algorithm with fully periodic finite element models, are employed [2,3]. Super stiff nano-particles and a soft cross-linked matrix material are considered. We investigate non-linear effects of macroscopic responses which are directly linked to the employed material laws at the micro-scale and might therefore lead to a more conclusive relation between the different scales.



[1] Georgopanos, Prokopios, Gerold A. Schneider, Axel Dreyer, Ulrich A. Handge, Volkan Filiz, Artur Feld, Ezgi D. Yilmaz et al. "Exceptionally strong, stiff and hard hybrid material based on an elastomer and isotropically shaped ceramic nanoparticles." Scientific reports 7, no. 1 (2017): 7314.

[2] Schneider, Konrad, Benjamin Klusemann, and Swantje Bargmann. "Automatic three-dimensional geometry and mesh generation of periodic representative volume elements for matrix-inclusion composites." Advances in Engineering Software 99 (2016): 177-188.

[3] Bargmann, Swantje, Benjamin Klusemann, Jürgen Markmann, Jan Eike Schnabel, Konrad Schneider, Celal Soyarslan, and Jana Wilmers. "Generation of 3D representative volume elements for heterogeneous materials: a review." Progress in Materials Science (2018).