Study on Effect of Particle Shape on Interlocking

  • Ashwani Kumar Bindal
  • Arghya DasEmail author
  • Animesh Das
Conference paper
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 56)


The mechanical response of a granular system depends on various factors at macroscopic (continuum scale) and microscopic (grain scale) levels. Interlocking between the aggregates is one of the microscopic features that affect the response of granular assembly. The present study deals with the study of the effect of aggregate shape on interlocking. Aluminum rods of circular cross-section are used as the basic elements idealizing the aggregates under plane strain conditions. A biaxial compression setup is fabricated. The load is applied vertically at a constant displacement rate and the lateral displacements of the vertical walls are measured. These vertical walls are partially restrained by horizontal springs. The stiffness of the rod assembly and the translation and rotation of some selected rods are considered as the surrogate parameters indicative of the degree of interlocking. Rods with square or triangular cross-sections are used as intrusions, at various area percentages. The present study suggests that, in general, the stiffness of assembly increases, and translation and rotation decreases as more angular particles are used in the assembly. However, no appreciable difference in the response is observed between the two types of angular particles (that is, rods with triangular and square cross-sections) used in the present study.


Interlocking Angular particle Biaxial compression Granular materials 


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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Ashwani Kumar Bindal
    • 1
  • Arghya Das
    • 1
    Email author
  • Animesh Das
    • 1
  1. 1.Department of Civil EngineeringIndian Institute of Technology KanpurKanpurIndia

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