Approach to structural anisotropy in compacted cohesive powder
We investigate the mesoscopic regime between microscopic particle properties and macroscopic bulk behavior and present a complementary approach of physical experiments and discrete element method simulations to explore the development of the microstructure of cohesive powders during compaction. On t...
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| Veröffentlicht in: | Granular matter 2014-06, Vol.16 (3), p.401-409 |
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| creator | Strege, S. Weuster, A. Zetzener, H. Brendel, L. Kwade, A. Wolf, D. E. |
| description | We investigate the mesoscopic regime between microscopic particle properties and macroscopic bulk behavior and present a complementary approach of physical experiments and discrete element method simulations to explore the development of the microstructure of cohesive powders during compaction. On the experimental side, a precise micro shear tester
(
μ
ST
)
for very small powder samples has been developed and integrated into a high resolution X-ray microtomography (XMT) system. The combination of
μ
ST
and XMT provides the unique possibility to access the 3D microstructure and the particle network inside manipulated powder samples experimentally. In simulations we explore the structural changes resulting from compaction: a Hertzian contact model is utilized for compaction of an isotropic initial configuration created by a geometrical algorithm. As a first result of this approach we present the analysis of the compaction of slightly cohesive
SiO
2
particles with special regard to bulk density, heterogeneity, compaction law and structural anisotropy. |
| doi_str_mv | 10.1007/s10035-013-0454-4 |
| format | Article |
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(
μ
ST
)
for very small powder samples has been developed and integrated into a high resolution X-ray microtomography (XMT) system. The combination of
μ
ST
and XMT provides the unique possibility to access the 3D microstructure and the particle network inside manipulated powder samples experimentally. In simulations we explore the structural changes resulting from compaction: a Hertzian contact model is utilized for compaction of an isotropic initial configuration created by a geometrical algorithm. As a first result of this approach we present the analysis of the compaction of slightly cohesive
SiO
2
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(
μ
ST
)
for very small powder samples has been developed and integrated into a high resolution X-ray microtomography (XMT) system. The combination of
μ
ST
and XMT provides the unique possibility to access the 3D microstructure and the particle network inside manipulated powder samples experimentally. In simulations we explore the structural changes resulting from compaction: a Hertzian contact model is utilized for compaction of an isotropic initial configuration created by a geometrical algorithm. As a first result of this approach we present the analysis of the compaction of slightly cohesive
SiO
2
particles with special regard to bulk density, heterogeneity, compaction law and structural anisotropy.</description><subject>Anisotropy</subject><subject>Cohesion</subject><subject>Complex Fluids and Microfluidics</subject><subject>Computer simulation</subject><subject>Contact</subject><subject>Discrete element method</subject><subject>Engineering Fluid Dynamics</subject><subject>Engineering Thermodynamics</subject><subject>Foundations</subject><subject>Geoengineering</subject><subject>Heat and Mass Transfer</subject><subject>Heterogeneity</subject><subject>Hydraulics</subject><subject>Industrial Chemistry/Chemical Engineering</subject><subject>Materials Science</subject><subject>Microstructure</subject><subject>Original Paper</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Powder metallurgy</subject><subject>Simulation</subject><subject>Soft and Granular Matter</subject><subject>Texts</subject><subject>Three dimensional</subject><issn>1434-5021</issn><issn>1434-7636</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp1kEtLw0AUhQdRsFZ_gLuAGzfRO-9mI5TiCwpudD1M5mFT0kycSRT_vVPShQhu7j2L7xwOB6FLDDcYQN6mfCkvAdMSGGclO0IzzCgrpaDi-KA5EHyKzlLaAmBeYTlDd8u-j0GbTTGEIg1xNMMYdVvorklhiKH_LpquMGHXazM4m9XGpebTFX34si6eoxOv2-QuDn-O3h7uX1dP5frl8Xm1XJeGYT6UQphKWEYNI9xxIiyuLPGe6rqmsqaWWLKQBGpnmJdVLcHXGoSXUAvqCbF0jq6n3Fz2Y3RpULsmGde2unNhTApzjkEuFlxk9OoPug1j7HK7TFHgpOIVzRSeKBNDStF51cdmp-O3wqD2i6ppUZUXVftFFcseMnlSZrt3F38l_2v6ASzveD8</recordid><startdate>20140601</startdate><enddate>20140601</enddate><creator>Strege, S.</creator><creator>Weuster, A.</creator><creator>Zetzener, H.</creator><creator>Brendel, L.</creator><creator>Kwade, A.</creator><creator>Wolf, D. 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E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c415t-66c96d43c425e526d19d2ff3abb37b3d2d28720bec4f79b70fba06f70b63f22d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Anisotropy</topic><topic>Cohesion</topic><topic>Complex Fluids and Microfluidics</topic><topic>Computer simulation</topic><topic>Contact</topic><topic>Discrete element method</topic><topic>Engineering Fluid Dynamics</topic><topic>Engineering Thermodynamics</topic><topic>Foundations</topic><topic>Geoengineering</topic><topic>Heat and Mass Transfer</topic><topic>Heterogeneity</topic><topic>Hydraulics</topic><topic>Industrial Chemistry/Chemical Engineering</topic><topic>Materials Science</topic><topic>Microstructure</topic><topic>Original Paper</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Powder metallurgy</topic><topic>Simulation</topic><topic>Soft and Granular Matter</topic><topic>Texts</topic><topic>Three dimensional</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Strege, S.</creatorcontrib><creatorcontrib>Weuster, A.</creatorcontrib><creatorcontrib>Zetzener, H.</creatorcontrib><creatorcontrib>Brendel, L.</creatorcontrib><creatorcontrib>Kwade, A.</creatorcontrib><creatorcontrib>Wolf, D. 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E.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Approach to structural anisotropy in compacted cohesive powder</atitle><jtitle>Granular matter</jtitle><stitle>Granular Matter</stitle><date>2014-06-01</date><risdate>2014</risdate><volume>16</volume><issue>3</issue><spage>401</spage><epage>409</epage><pages>401-409</pages><issn>1434-5021</issn><eissn>1434-7636</eissn><abstract>We investigate the mesoscopic regime between microscopic particle properties and macroscopic bulk behavior and present a complementary approach of physical experiments and discrete element method simulations to explore the development of the microstructure of cohesive powders during compaction. On the experimental side, a precise micro shear tester
(
μ
ST
)
for very small powder samples has been developed and integrated into a high resolution X-ray microtomography (XMT) system. The combination of
μ
ST
and XMT provides the unique possibility to access the 3D microstructure and the particle network inside manipulated powder samples experimentally. In simulations we explore the structural changes resulting from compaction: a Hertzian contact model is utilized for compaction of an isotropic initial configuration created by a geometrical algorithm. As a first result of this approach we present the analysis of the compaction of slightly cohesive
SiO
2
particles with special regard to bulk density, heterogeneity, compaction law and structural anisotropy.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s10035-013-0454-4</doi><tpages>9</tpages></addata></record> |
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| subjects | Anisotropy Cohesion Complex Fluids and Microfluidics Computer simulation Contact Discrete element method Engineering Fluid Dynamics Engineering Thermodynamics Foundations Geoengineering Heat and Mass Transfer Heterogeneity Hydraulics Industrial Chemistry/Chemical Engineering Materials Science Microstructure Original Paper Physics Physics and Astronomy Powder metallurgy Simulation Soft and Granular Matter Texts Three dimensional |
| title | Approach to structural anisotropy in compacted cohesive powder |
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