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Measuring tensile, shear and torsional strength of solid bridges between particles in the millimeter regime

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Abstract

In this paper we present a novel experimental setup created to measure the strength of solid bridges between double-particle systems in the millimeter range. Beside the tensile strength, shear and torsional strength can be measured as well. Urea particles are used which are known for creating solid bridges under well defined climatic conditions. The measurements indicate that unlike to isotropic materials the bridge between two particles has higher shear than tensile strength. Moreover, the strengthening of the bridges with storage time is very inhomogeneous, suggesting the use of wide distribution for bridge strength instead of mean values in modelling.

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Authors and Affiliations

  1. Institute for Micro-Process-Engineering and Particle Technology, Umwelt-Campus Birkenfeld, FH Trier, P.O. Box 1380, 55761, Birkenfeld, Germany

    R. Kirsch & U. Bröckel

  2. Faculty of Physics and CeNIDE, University of Duisburg-Essen, 47048, Duisburg, Germany

    L. Brendel & J. Török

Authors
  1. R. Kirsch
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  2. U. Bröckel
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  3. L. Brendel
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  4. J. Török
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Correspondence to R. Kirsch.

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Kirsch, R., Bröckel, U., Brendel, L. et al. Measuring tensile, shear and torsional strength of solid bridges between particles in the millimeter regime. Granular Matter 13, 517–523 (2011). https://doi.org/10.1007/s10035-011-0281-4

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  • DOI: https://doi.org/10.1007/s10035-011-0281-4

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