Accueil >
Annuaire > Page Personnelle
HEINZE Karsta
Autre(s) thème(s) de recherche ou rattachement(s) : - Matière Molle kmheinze
univ-montp.fr
0783174497
Domaines de Recherche: - Sciences du Vivant
- Sciences de l'ingénieur/Mécanique/Mécanique des matériaux
|
Productions scientifiques :
|
|
Numerical modeling of the tensile strength of a biological granular aggregate: Effect of the particle size distribution 
Auteur(s): Heinze K., Frank Xavier, Lullien-Pellerin Valerie, George M., Radjai Farhang, Delenne Jean-Yves
Conference: International workshop on Powders and Grains (Montpellier, FR, 2017-07-03)
Actes de conférence: , vol. p. (2017)
Ref HAL: hal-01539472_v1
Exporter : BibTex | endNote
Résumé: Wheat grains can be considered as a natural cemented granular material. They are milled under highforces to produce food products such as flour. The major part of the grain is the so-called starchy endosperm.It contains stiff starch granules, which show a multi-modal size distribution, and a softer protein matrix thatsurrounds the granules. Experimental milling studies and numerical simulations are going hand in hand tobetter understand the fragmentation behavior of this biological material and to improve milling performance.We present a numerical study of the effect of granule size distribution on the strength of such a cementedgranular material. Samples of bi-modal starch granule size distribution were created and submitted to uniaxialtension, using a peridynamics method. We show that, when compared to the effects of starch-protein interfaceadhesion and voids, the granule size distribution has a limited effect on the samples’ yield stress.
|
|
|
|
Quantification of the Effect of Surface Slope on Mechanical Measurements by Contact-Resonance AFM
Auteur(s): Heinze K., Arnould Olivier, Delenne Jean-Yves, Lullien-Pellerin Valerie, Ramonda Michel, George M.
(Affiches/Poster)
Forum des Microscopies à Sonde Locale (Juvignac, FR), 2017
|
|
|
|
The Wheat Grain as a cemented granular material: Nanoscale investigation of its mechanical properties
Auteur(s): Heinze K., Delenne Jean-Yves, George M., Lullien-Pellerin Valerie
(Affiches/Poster)
3. International Conference on Structural Nano Composites (NANOSTRUC 2016) (Aberdeen, GB), 2016
Ref HAL: hal-01605556_v1
Exporter : BibTex | endNote
Résumé: The Wheat Grain as a cemented granular material: Nanoscale investigation of its mechanical properties. 3. International Conference on Structural Nano Composites (NANOSTRUC 2016)
|
Vcard
