Abstract
After opening a silo bottom outlet some characteristic phenomena can be observed:
-
The lateral pressure on the silo wall increases immediately after the beginning of emptying and can be a multiple of the one during filling.
-
Shear zones come into being along the silo wall and, for a dense fill, also inside the flowing granular material. The dilatancy constraint in the shear zones (caused by the stiffness of neighbouring material) results in a scale effect in model silos, i.e. an additional increase of dimensionless wall stresses.
-
Stress fluctuations are registered during the whole emptying process in big and in model silos as well.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Tejchman J. Scherzonenbildung und Verspanuungseffekte in Granulaten unter Berücksichtigung von Korndrehungen. Dissertation, Universität Karlsruhe, 1990
Walters J. K.: A Theoretical Analysis of Stresses with Vertical Walls. Chem. Engng. Sci. 28. 1973, 13
Drescher A.: Stress and Flow Calculations in Silos (in polish). Warszawa-Poznan, 1980
Mr6z Z., Drescher A.: Limit Plasticity Approach to some Cases of Flow of Bulk Solids. Journal of Engineering for Industry, 1964, 357–363
Jenike A.: Storage and Flow of Solid. Utah Engin. Exp. Station, Bulletin 123, University of Utah, 1964
Enstad G.: On the Theory of Arching in Mass Flow Hoppers. Chem. Engng. Sci. 30, 1975
Eibl J., Rombach G.: Consistent Modelling of Filling and Discharging Processes in Silos. Silos–Forschung und Praxis, Tagung 88 in Karlsruhe, 1988, 1–15
Wernick E.: Tragfähigkeit zylindrischer Anker in Sand unter besonderer Berücksichtigung des Dilatanzverhaltens. Dissertation, Universiät Karlsruhe, 1978
Vardoulakis I.: Scherfugenbildung in Sandkörpern als Verzweigungsproblem. Dissertation, Universität Karlsruhe, 1977
Mühlhaus I-I.B.: Berücksichtigung von Inhomogenitäten im Gebirge im Rahmen einer Kontinuumstheorie. Habilitation, Universität Karlsruhe, 1987
Günther W.: Zur Statik und Kinematik des Cosserat’schen Kontinuum. Abh. Braunschweigische Wiss., Band 10, 1958, 195–213
Schäfer H. Versuch einer Elastizitätstheorie des zweidimensionalen Cosserat- Kontinuums. Miszellaneen der angewandten Mechanik. Festschrift Walter Tomien, Berlin, Akademie-Verlag, 1962, 277–292
Bogdanova-Bontscheva N., Lippmann H.: Rotationssymmetrisches ebenes Fließen eines granularen Modellmaterials. Acta Mech. 21, 1975, 93–113
Becker M., Hauger W.: Granular Material — An Experimental Realization of a. Plastic Cosserat Continuum. Mechanics of Inelastic Media and Structures. Polska Akademia. Nauk. Warszawa — Poznan, 1982, 23–39
Mröz Z.: Nonassociated Flow Laws in Plasticity. Journal de Mechanique 1, 1963, 21–42
Janssen ILA.: Versuche über Getreidedruck in Silozellen, VDI Zeitschrift 39, Nr. 35, 1985
Ortiz M., Simb J.C.: An Analysis of a New Class of Integration Algorithms for Elastoplastic Constitutive Relation. Inter. Journal for Num. and Analit. Meth. in Geomech., Vol. 23, 1986, 353–366
Bathe K.J.: Finite Element Procedures in Engineering Analysis. Prentice-Hall, Inc. Englewood Cliffs, New Jersey, 1982
Desai C.S., Zaman M.M., Lighner J., Siriwardane H.J.: Thin Layer Element for Interfaces and Joints. Inter. Journal for Numer. and Analit. Meth. in Geomech., Vol. 8, 1984, 19–43
Griffiths D.V.: Numerical modelling of interfaces using conventional finite elements. 5th Int. Conf. on Numer. Meth. in Geomech., Nagoya, 1985, 837–844
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1991 Springer-Verlag Berlin, Heidelberg
About this chapter
Cite this chapter
Gudehus, G., Tejchman, J. (1991). Some Mechanisms of a Granular Mass in a Silo — Model Tests and a Numerical Cosserat Approach. In: Brüller, O.S., Mannl, V., Najar, J. (eds) Advances in Continuum Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-48890-0_14
Download citation
DOI: https://doi.org/10.1007/978-3-642-48890-0_14
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-53988-9
Online ISBN: 978-3-642-48890-0
eBook Packages: Springer Book Archive