نتایج جستجو برای: direct shear tests

تعداد نتایج: 811427  

Journal: :KONA Powder and Particle Journal 1983

2018
Chun Ran Pengwan Chen

To study the dynamic shear deformation and failure properties of Ti-6Al-4V (Ti-64) alloy and Ti-5Al-5Mo-5V-1Cr-1Fe (Ti-55511) alloy, a series of forced shear tests on flat hat shaped (FHS) specimens for the two investigated materials was performed using a split Hopkinson pressure bar setup. The evolution of shear deformation was monitored by an ultra-high-speed camera (Kirana-05M). Localized sh...

Journal: :Engineering and Technology Journal 2021

A.A. Hajimohammadi Seyed Majdedin Mir Mohammad Hosseini

Seismic piezocone device (SCPTu) together with Resonant Column and Cyclic Triaxial test apparatus are employed to measure small strain shear modulus (G0) of carbonate sandy and clayey soils of southern coasts of Iran. A large area of southern regions of Iran is formed from clay, silt and sand. In this study, maximum shear modulus that is derived from both field (by seismic piezocone) and labora...

Journal: :Earth Sciences Research Journal 2017

2015
Jonathan Fleischmann Radu Serban Dan Negrut

Two approaches are commonly used for handling frictional contact within the framework of the Discrete Element Method (DEM). One relies on the Complementarity Method (CM) to enforce a non-penetration condition and the Coulomb dry-friction model at the interface between two bodies in mutual contact. The second approach, called the Penalty Method (PM), invokes an elasticity argument to produce a f...

2008
H. Rahnema

A new simple shear apparatus is fabricated which is capable of applying monotonic and cyclic load on soil specimens. A series of tests was conducted to study the pore pressures (or suction), volume change, and shear behavior of the soil samples with anisotropic consolidation pressure. The simple shear apparatus is capable of controlling as well as measuring pore-air and pore-water pressure in t...

Journal: :Acta Geotechnica 2022

Abstract The simple shear response of air-fall volcanic (pyroclastic) soils under both saturated and unsaturated conditions is interpreted through an elastoplastic constitutive model with hydraulic-hardening porosity-dependent critical state. Extensive experimental data collected various testing protocols (i.e., shear, direct triaxial tests) enable the theoretical identification variability fun...

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