Rapeseed impact against a flat surface:Physical testing and DEM simulation with two contact models

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41610%2F10%3A19302" target="_blank" >RIV/60460709:41610/10:19302 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Rapeseed impact against a flat surface:Physical testing and DEM simulation with two contact models
Original language description
Efficient application of a discrete element method (DEM) in modeling the behavior of granular materials requires contact models that reflect real behavior and realistic material parameters. The mechanical behavior of materials of biological origin is strongly influenced by the moisture content, which changes the surface and mechanical properties of seed endosperm and influences the bulk behavior. Laboratory tests and numerical DEM simulations were conducted to evaluate regions of validity for two basiccontact models to describe the impact behavior of rapeseed at four moisture contents (5.5%, 7.5%, 14.7% and 34.0%). Seeds were allowed to free fall onto a flat surface from a height of 21 cm. Force?time waveforms were recorded using oscilloscope and riseand fall times were extracted for further analysis. DEM simulations were performed in which material parameters determined by a standard method fitted to two contact models were compared to experimental contact time measurements. The ela
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JJ - Other materials
OECD FORD branch
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Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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