UH model considering particle crushing

An Elastoplastic Model Considering Sand Crushing

The behavior of sand crushing will appear when the confining pressure is up to a certain value, which results in disappearing of the positive dilatancy of sand. Adopting a new hardening parameter with the crushing stress, an elastoplastic constitutive model considering sand crushing is proposed. Comparing the conventional triaxial compression test results with the model prediction, it shows tha...

Uh Mark

Spoken language is full of disfluencies. A frequent sound expressing hesitation is uh (or any variant thereof), but its linguistic status is debated. This article offers a new perspective on hesitation particles. First, the position is defended that they are linguistic signals, hence words, and it is shown that they belong to the larger class of interjections on the basis of a number of qualita...

Uh-1 Corrosion Monitoring

Particle-scale mechanics of sand crushing in compression and shearing using DEM

In this paper, the discrete element method is used to explore why differing amounts of breakage, quantified using Hardin’s relative breakage parameter (Br), are associated with the critical state line (CSL) and the normal compression line (NCL) at similar stress levels. Virtual samples initially containing more than 20,000 spherical particles were isotropically compressed to a range of confinin...

UH-511-943-99 dE/dx PARTICLE IDENTIFICATION FOR COLLIDER DETECTORS

One of the most successful models of ionization is the photo-absorption ionization model . The model assumes that the process of interest is dominated by single-photon exchange which allows one to relate the ionization process to the photo-absorption process for which the data is more readily available. Also the model is restricted to non-relativistic recoil electron, thus it does not include h...