Predicting the Uniaxial Compressive Response of Granular Media over a Wide Range of Strain Rates Using the Strain Energy Density Concept

Suescun-Florez, Eduardo; Kashuk, Sina; Iskander, Magued; Bless, Stephan

doi:10.1007/s40870-015-0028-0

Cited by 18 publications

(7 citation statements)

References 22 publications

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“…These observations are also found in SuescunFlorez et al [12] for granular media loaded in uniaxial compression. In addition, these results are consistent with Bozorg-Haddad et al [40,41] for virgin and recycled plastics respectively.…”

Section: Verification Of Strain Rate Pairs Calculationsupporting

confidence: 84%

“…A previous work by Suescun-Florez et al [12] showed that the strain energy density model (SED) was capable of describing the rate-dependency of granular materials under uniaxial compression loading. The starting point of this theory is based on an experiential argument that stresses are proportional to a power of the ratio of strain rates, at points having the same strain energy density.…”

Section: Introductionmentioning

confidence: 99%

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A Model to Predict Strain Rate Dependency of Dry Silica Sand in Triaxial Compression

Suescun-Florez

Iskander

Bless

2015

J. dynamic behavior mater.

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A new method is proposed and evaluated to model the effect of strain rate on sand during triaxial compression. Triaxial compression tests were conducted on dry silica sand with rates of 0.1-10 %/s at 100-400 kPa confining pressures. Rate effects become significant at the higher confining pressures. It is found that a modified strain-energy-density approach provides a useful means to interpolate and extrapolate constant strain rate triaxial data to other strain rates.

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Section: Verification Of Strain Rate Pairs Calculationsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

A Model to Predict Strain Rate Dependency of Dry Silica Sand in Triaxial Compression

Suescun-Florez

Iskander

Bless

2015

J. dynamic behavior mater.

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“…The particle size ranges were chosen based on resulting fragmentation sizes derived during impact into boron carbide by Hogan et al, as well to compare with other studies in the literature on granular compaction of comparable sizes (eg, Refs. ). The alumina particles were mostly elongated in shape while the boron carbide fragments has aspect ratios closer to 1.…”

Section: Discussionmentioning

confidence: 97%

Quasi‐static confined uniaxial compaction of granular alumina and boron carbide observing the particle size effects

et al. 2019

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The quasi‐static confined uniaxial compaction of granular alumina and boron carbide was studied, and the effect of triaxial stress on the materials as a function of increasing particle size was observed. The average particle sizes studied for granular alumina were 170 ± 63, 230 ± 55, 330 ± 67, and 450 ± 83 µm. The average particle size studied for granular boron carbide were 170 ± 40, 190 ± 34, 320 ± 59, and 470 ± 90 µm. The material response at hydrostatic pressure as a function of porosity, the bulk modulus as a function of hydrostatic pressure, and the transmission ratio as a function of applied load was evaluated for increasing particle size. For alumina, the increase in particle size resulted in an increase in strength for a fixed porosity, the bulk modulus of this material did not show clear particle size‐dependent trends, and the transmission ratio increased with increase in particle size. Conversely, for granular boron carbide, the hydrostatic pressure‐porosity curve shifted to the right with increasing particle size, the change in bulk modulus increased with increasing particle size, and no clear particle size‐dependent trends were observed when looking at the transmission ratio during the experiment. Post‐experiment scanning electron microscopy revealed that alumina powder fragmented from elongated shapes to block‐like structures, while boron carbide powder appeared more circular before the experiments and fragmented into smaller comminuted pieces. This paper discusses the implication of the work in the context of the limited experimental data in the field and the modeling of granular advanced ceramics behavior.

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“…The effects of the lateral confinement on the dynamic behaviour of dry sand were investigated in [8,18]. An empirical model based on the concept of strain energy density was used in [19] to predict the response of particulate materials at different strain rates. More recently, the effect of particle size on the dynamic behaviour of calcareous sand was presented in [20].…”

Section: Introductionmentioning

confidence: 99%

The Mechanical Response of Wet Volcanic Sand to Impact Loading, Effects of Water Content and Initial Compaction

Varley

Rutherford

Zhang

et al. 2020

J. dynamic behavior mater.

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The effects of water content and initial compaction on the dynamic response of volcanic sand from Mount Etna were investigated by a series of experiments on a long Split Hopkinson Pressure Bar apparatus capable of generating stress pulses of duration exceeding one millisecond. The dynamic stress–strain characteristics were determined until large final compressive strains were achieved. An experimental protocol for the preparation of samples characterised by different initial porosity and moisture content was defined in order to reproduce, in a laboratory environment, granular volcanic aggregates representative of naturally occurring soils in different initial density and water content states. It was found that, for limited amounts of water content, the dynamic response of the investigated volcanic wet sand is more compliant than in dry conditions. Conversely, highly saturated samples exhibit a steep increase in stiffness occurring at strains when the dynamic compressive behaviour becomes dominated by the response of the nearly incompressible water. The presence of water has negligible effect on the mechanical behaviour when the samples are loaded at quasi static strain rates. The grain size distribution and morphology of samples tested in different conditions were evaluated and compared by means of edge detection analysis techniques applied to high contrast images.

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Predicting the Uniaxial Compressive Response of Granular Media over a Wide Range of Strain Rates Using the Strain Energy Density Concept

Cited by 18 publications

References 22 publications

A Model to Predict Strain Rate Dependency of Dry Silica Sand in Triaxial Compression

A Model to Predict Strain Rate Dependency of Dry Silica Sand in Triaxial Compression

Quasi‐static confined uniaxial compaction of granular alumina and boron carbide observing the particle size effects

The Mechanical Response of Wet Volcanic Sand to Impact Loading, Effects of Water Content and Initial Compaction

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