Abstract A smoothed particle hydrodynamics code based on micropolar continua for geomaterials is developed problems involving large deformation and shear strain localization. Two typical geotechnical problems, i.e., biaxial compression test sand column collapse, are simulated using classical model to demonstrate the performance of newly proposed method. parameter study given scale effect in con...

progressive collapse is a chain reaction of failures propagating throughout a portion of the structure disproportionate to the original local failure occurring when a sudden loss of a critical load‐bearing element initiates a structural element failure, eventually resulting in partial or full collapse of the structure. both general services administration (gsa) and united states department of d...

The potassium form of d(CGCGAATTCGCG) solved by X-ray diffraction to 1.75 A resolution indicates that monovalent cations penetrate the primary and secondary layers of the "spine of hydration". Both the sodium [Shui, X., McFail-Isom, L., Hu, G. G., and Williams, L. D. (1998) Biochemistry 37, 8341-8355] and the potassium forms of the dodecamer at high resolution indicate that the original descrip...

One of the most striking aspects of redshift surveys is that there are huge regions of space totally devoid of galaxies. These are the cosmic voids, which grew hierarchically from the initial density troughs in the primordial fluctuation field. In a hierarchical structure formation scenario smaller voids build up larger ones; the void hierarchy. In this paper we study the void evolution and mer...

We investigated the relationship between material properties and axial collapse behavior of hat-section hollow columns made high-strength steels. Dynamic tests FEM simulations were conducted using steels with various tensile strengths n-values. Materials that exhibited yield point elongation (YPEl) underwent enhanced accordion-type deformation in owing to occurrence long wave buckling on hat wa...

Unsaturated periporomechanics is a strong nonlocal poromechanics based on peridynamic state and effective force concept. In the previous periporomechnics total Lagrangian formulation adopted for solid skeleton of porous media. this article as new contribution we formulate implement an updated unsaturated framework modeling extreme large deformation in soils under drained condition, e.g., soil c...