... computational costs. Here we tackle a question stemming from this trend: how accurate should particle models be to ensure accuracy? We address this question for the case of the compression of crushable sand. LS-DEM was used to generate three models of Ottawa sand (exact replicas, ellipsoids, and spheres) from...

... materials due to excessive breakage even at low stresses. A simple constitutive model for crushable soils with the ability to predict the mechanical and deformation behaviour of GCA is introduced. This constitutive model uses a new strength parameter, the so-called reference crushing stress, which affects...

...R. Fu; M. R. Coop; X. Q. Li The effects of the addition of waste tyre products have been extensively investigated in dilative quartz sands, but little is known about their effect on the behaviour of compressive, crushable sands. Rubber granules and fibres were introduced into a decomposed granite...

... images of some randomly selected grains from the final specimen at 36 MPa compression. Again, as shown in the corresponding data in Table 1 , grains of different sizes show their grain characteristic parameters varying over a narrow range. fractals laboratory tests particle crushing crushability...

... rights reserved 2012 compressibility numerical modelling particle crushing crushability Rockfill is often used in large civil engineering structures such as embankments and dams. Particle sizes range from a few millimetres to over a metre. Common D₅₀ sizes in rockfill...