Size effects in numerical homogenization of polycrystalline silicon

verfasst von
Martin Weber, Marcus Aßmus, Rainer Glüge, Max von Zabiensky, Holm Altenbach
Abstract

In this work, a procedure to determine these characteristic values is listed to investigate the size effect on different film thicknesses of this material. With the knowledge of the properties of the silicon single crystal with its cubic symmetry on the micro level, a homogenization of the properties to the macro level can be done. The polycrystal structure with a cubic sample geometry forms the macro level. This structure is now cut into thinning layers for investigation. The open‐source software Neper is used to create the crystal structure and the inter‐connectivity for this purpose. With the help of Matlab, this information is passed on to the finite element program Abaqus, where the results are evaluated after an elastic calculation using Python. The focus is on the expected change in material properties as a function of the layer thickness.

Organisationseinheit(en)
Institut für Kontinuumsmechanik
Externe Organisation(en)
Otto-von-Guericke-Universität Magdeburg
Typ
Artikel
Journal
PAMM
Band
23
ISSN
1617-7061
Publikationsdatum
01.11.2023
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
Ziele für nachhaltige Entwicklung
SDG 7 – Erschwingliche und saubere Energie
Elektronische Version(en)
https://doi.org/10.1002/pamm.202300221 (Zugang: Offen)