A constitutive model for granular materials considering grain breakage

By Wei Hu, Zhen-Yu Yin, C. Dano, P. Hicher. 2011

144 citations recorded by the source corpus.

A particle breakage has a significant impact on the mechanical behavior of granular materials. In this paper, we present an elasto-plastic model with two yield surfaces to which the influence of particle breakage has been introduced. The main feature of this model is to incorporate the change in the critical state line (CSL) consequent to the grain breakage induced by isotropic and deviatoric stresses during loading. For this purpose we propose a breakage function which connects the evolution of the CSL to the energy consumed. Results from earlier studies on drained and undrained compression and extension triaxial tests were used to calibrate and validate the model. Comparison between earlier results and our simulations indicates that the model can reproduce with good accuracy the mechanical behavior of crushable granular materials and predict the evolution of the grain size distribution during loading.

Subfields: Civil and Structural Engineering

View Paper: https://www.semanticscholar.org/paper/0cab5925c6d0fe47875795d0b49b01bde4493172

How researchers see this paper

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In Civil and Structural Engineering

1. Yin‐Fu Jin
2. C. Dano
3. Zhen-Yu Yin
4. P. Hicher

Citations in the corpus

• Modeling Mechanical Behavior of Very Coarse Granular Materials (2017, background): “94 was assumed on the basis of the test results on Iruma sands shown by Iwasaki and Tatsuoka (1977). Because no statistical data on crushing tests on grains were available, no direct determination of the Weibull parameters could be made.”