Influence of inherent particle characteristics on the flow behavior and strength properties of particulate materials

Beena Sukumaran, A. K. Ashmawy

Research output: Contribution to conferencePaper

1 Scopus citations

Abstract

The inherent factors influencing the stress-strain behavior include particle size, particle size distribution, particle shape, angularity, and surface roughness. The influence of the inherent factors on the shear strength properties of particulate materials was studied. The studies indicate that a good correlation between inherent particle characteristics and drained shear strength properties of a wide range of particulate materials exists. In addition, an index test was developed to predict the shear strength properties of particulate materials. The results show that the flow cone (hopper) test data, namely the flow rate, are also influenced by the inherent particle characteristics. A good correlation between drained shear strength properties and the flow rates measured in the cone was found to exist. Therefore, index tests such as flow rate through a flow cone (hopper) can be used to estimate the drained monotonic strength of particulate materials. This proves to be a great advantage because the index test can be conducted rapidly by personnel who do not have extensive experience in soils testing to obtain an estimate of drained shear strength properties. Numerical simulation of the index test using a two-dimensional distinct element program has also been conducted. The simulation studies model the flow and interaction of hundreds of thousands of discrete particles and were used to study particulate behavior at a micro-level.

Original languageEnglish (US)
Pages430-436
Number of pages7
StatePublished - Jan 1 2001
Event11th (2001) International Offshore and Polar Engineering Conference - Stavanger, Norway
Duration: Jun 17 2001Jun 22 2001

Other

Other11th (2001) International Offshore and Polar Engineering Conference
CountryNorway
CityStavanger
Period6/17/016/22/01

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

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