Comparative analysis of the proposed modified contact model against previous approaches.

Comparative analysis of the proposed modified contact model against previous approaches.

<p>Comparative analysis of the proposed modified contact model against previous approaches.</p>

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Bibliografiset tiedot
Päätekijä:	Yongfeng Zhu (7361045) (author)
Muut tekijät:	Wei Xiong (58411) (author), Wen Fan (586570) (author)
Julkaistu:	2025
Aiheet:	Biophysics Cell Biology Molecular Biology Biotechnology Evolutionary Biology Developmental Biology Environmental Sciences not elsewhere classified Biological Sciences not elsewhere classified varied contact patterns exhibited complex dependencies discrete elemental analysis discrete element method based contact model 82 &# 8201 78 &# 8201 20 &# 8211 triaxial compression simulations modified contact model larger equivalent diameters aspect ratio decreased sphericity decreased numerical simulations modified hertz equivalent diameter theoretical predictions significantly influence sample scale peak stress morphology due mechanical behavior granular materials fundamental characteristics findings enhance dem ).
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The CDF of normal and tangential contact forces in numerical specimens after compression considering different particle morphologies: (a) normal contact force; (b) tangential contact force; and different particle sizes: (c) normal contact force; (d) tangential contact force.
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Two ellipsoidal particles in contact.
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Different contact patterns for two ellipsoids.
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Average contact force and percentage of strong contact force under different conditions: (a) different particle shapes, (b) different particle sizes.
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The normal force between two particles with different equivalent diameters for P3: (a) hertznormal contact force; (b) normal viscous contact force.
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The tangential force between two particles with different equivalent diameters for P3: (a) elastic tangential contact force; (b) viscous tangential contact force.
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The tangential force between two particles with different aspect ratios and sphericities for De = 6.30 mm: (a) elastic tangential contact force; (b) viscous tangential contact force.
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The normal force between two particles with De = 6.30 mm for different aspect ratios and sphericities: (a) hertz normal contact force; (b) normal viscous contact force.
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Stress concentration factor value in the numerical samples with different shapes and sizes.
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Critical state parameters obtained from DEM simulations.
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Parameters used in the simulations.
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The force chain distributions of different numerical samples composed of elongated ellipsoids with different particle morphologies and particle sizes before shearing and after loading.
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Numerical samples composed of elongated ellipsoids before and after triaxial compression.
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Different ellipsoidal particles with De = 6.30 mm used in the discrete element simulations.
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