Publisher DOI: 10.1016/j.compstruct.2018.07.028
Title: Numerical modelling of partially potted inserts in honeycomb sandwich panels under pull-out loading
Language: English
Authors: Seemann, Ralf 
Krause, Dieter 
Issue Date: 1-Nov-2018
Source: Composite Structures (203): 101-109 (2018-11-01)
Journal or Series Name: Composite structures 
Abstract (english): Sandwich panel inserts are prone to pull-out loading, while predicting the pull-out strength is challenging due to the multitude of damage mechanisms involved. The present paper describes the implementation of two state-of-the art non-linear finite element models for predicting the pull-out strength. The two models include a 3D-continuum model where the core was modelled using 8-node brick elements with a homogenized material model and a detailed meso scale model with accurate honeycomb cell representation using 4-node shell elements. The simulation results are benchmarked against experimental data of the reference configuration. Both models enable to predict the strength accurately, while the 3D-continuum model can be considered favourable for most applications due to the reduced computational effort.
ISSN: 0263-8223
Institute: Produktentwicklung und Konstruktionstechnik M-17 
Type: Sonstiges
Funded by: German Federal Ministry for Economic Affairs and Energy , Germany, in the framework of LuFo V-2 as part of the research project ‘SYLVIA’.
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