A long-time dynamic for granular materials arising in the hypoplastic theory of Kolymbas type is investigated. It assumed that hardness allows exponential degradation, which leads to densification material states. The governing system a rate-independent strain under stress control described by implicit differential equations. Its analytical solution arbitrary inhomogeneous coefficients construc...

Nowadays, the numerical analysis of submarine pipelines offshore oil and gas industry is a big challenge in engineering design. A simple, fast accurate tool proposed this article based on macroelement concept. The novel within framework hypoplasticity can consider static monotonic combined (multi-directional) loads for shallow embedded clay. incremental nonlinear constitutive formulas are defin...

Introduction The primary purpose of this review was to focus on the gross anatomy, including morphometric characteristics and arterial vasculature, of the human cerebellar tonsil. We also aimed to investigate the neurosurgical anatomy of this clinically important structure of the human brain. Discussion The cerebellar tonsil is a rounded lobule on the undersurface of each cerebellar hemisphere,...

The transcription factor Ctip2/Bcl11b plays essential roles in developmental processes of the immune and central nervous systems and skin. Here we show that Ctip2 also plays a key role in tooth development. Ctip2 is highly expressed in the ectodermal components of the developing tooth, including inner and outer enamel epithelia, stellate reticulum, stratum intermedium, and the ameloblast cell l...

Silos generally work as storage structures between supply and demand for various goods, and their structural safety has long been of interest to the civil engineering profession. This is especially true for dynamically loaded silos, e.g., in case of seismic excitation. Particularly thin-walled cylindrical silos are highly vulnerable to seismic induced pressures, which can cause critical bucklin...

A novel scheme to apply constitutive (continuum) soil models the mechanical modelling of soil-structure interfaces is presented. Opposite existing approaches, all normal stress components interface depend directly on adjacent continuum. This allows satisfy boundary conditions not only for continuum but also interface. Interface based Hypoplasticity with intergranular strain extension and Sanisa...

Soil-structure frictional resistance is an important parameter in the design of many foundation systems. The soil-structure interface area responsible for load transferring from structure to surrounding soil. mobilized shaft axially loaded, long slender pile embedded dense, dry sand experimentally and numerically analyzed when subjected pullout force. Experimental setup including instrumented m...

The paper focuses on the numerical analysis of the effect of texturial anisotropy on shear localization in cohesionless granular materials. For simulation of the mechanical behavior of a granular material during a monotonous deformation path, a hypoplastic constitutive model was used. To take into account a characteristic length of micro-structure, the constitutive model was extended by micro-p...