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)