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A Simulation Method for Particle Fragmentation Based on Energy Landscape
Yupeng Jiang, Fernando Alonso-Marroquin, Hans J Herrmann +1
We propose a method for the simulation of particle fragmentation based on the calculation of the energy landscape inside the particle. The landscape of strain energy is calculated…
Evolution of fragment size distributions from the crushing of granular materials
Pavel S. Iliev, Falk K. Wittel, Hans J. Herrmann
We study the fragment size distributions after crushing of single and many particles under uniaxial compression inside a cylindrical container by means of numerical simulations. Un…
A Boundary-Spheropolygon Element Method for Stress Determination and Breakage Modelling of Particles
Yupeng Jiang, Hans J. Herrmann, Fernando Alonso-Marroquin
We present a boundary-spheropolygon element method (BSEM), that combines the boundary integral method (BIM) and the spheropolygon-based discrete element method (SEM). The interacti…
Tensile Stress Relaxation in Unsaturated Granular Materials
Filippo Bianchi, Marcel Thielmann, Roman Mani +2
The mechanics of granular media at low liquid saturation levels remain poorly understood. Macroscopic mechanical properties are affected by microscale forces and processes, such as…
Cutting self-similar space-filling sphere packings
D. V. Stäger, H. J. Herrmann
Any space-filling packing of spheres can be cut by a plane to obtain a space-filling packing of disks. Here, we deal with space-filling packings generated using inversive geometry…
Evolution of Strength and Failure of SCC during Early Hydration
Linus K. Mettler, Falk K. Wittel, Robert J. Flatt +1
The early strength evolution of self-consolidating concrete (SCC) is studied by a set of non-standard mechanical tests for compressive, tensile, shear and bending failure. The resu…