Results 21 to 30 of about 33,876 (253)

Experimental Research on the Dynamic Characteristics of Several Model Soils in Small Strain Range and Application in Shaking Table Model Test

Buildings, 2023
Reasonable model soil is very important in shaking table model tests to reduce the distortion of the soil structure stiffness ratio. Several model soils, such as sawdust soil, sawdust sand, rubber granular soil, rubber powder soil, and sawdust kaolin ...
Zhaoxia Ma, Guobo Wang, Yao Wang
doaj   +1 more source

Perforation studies of concrete panel under high velocity projectile impact based on an improved dynamic constitutive model

Defence Technology, 2023
The finite-depth concrete panels have been widely applied in the protective structures, and its impact resistance and dynamic fracture failures, especially the scabbing/perforation limits, under high velocity projectile impact, are mainly concerned by ...
Fei Zhou, Hao Wu, Yuehua Cheng
doaj   +1 more source

Strength and Failure Characteristics of Natural and Water-Saturated Coal Specimens under Static and Dynamic Loads

Shock and Vibration, 2018
Rock bursts occur frequently in coal mines, and the mechanical properties of saturated coal specimens under coupled static-dynamic loading need to be studied in detail.
Wen Wang, Heng Wang, Dongyin Li, Huamin Li, Zhumeng Liu   +4 more
doaj   +1 more source

Assessment of cyclic deformation and critical stress amplitude of jointed rocks via cyclic triaxial testing

Journal of Rock Mechanics and Geotechnical Engineering, 2023
Jointed rock specimens with a natural replicated joint surface oriented at a mean dip angle of 60° were prepared, and a series of cyclic triaxial tests was performed at different confining pressures and cyclic deviatoric stress amplitudes.
Waranga Habaraduwa Peellage, Behzad Fatahi, Haleh Rasekh   +2 more
doaj   +1 more source

Thermo-Poro-Mechanical Properties of Clayey Gouge and Application to Rapid Fault Shearing [PDF]

, 2006
In this paper, the mechanism of fault pressurization in rapid slip events is analyzed on the basis of a complete characterization of the thermo-poro-mechanical behavior of a clayey gouge extracted at 760m depth in Aigion fault in the active seismic zone ...
Lazar, Paul, Sulem, Jean, Vardoulakis, Ioannis   +2 more
core   +7 more sources

Impact of triaxial stress state at various pavement depths on the dynamic modulus of asphalt mixture

Case Studies in Construction Materials
The mechanical characteristics of asphalt mixture are closely related with its stress state, temperature, and loading rate, therefore, the loading condition of the asphalt mixture's dynamic modulus test should be consistent with the actual temperature ...
Jun Zhang, Ye Wang, Xudong Wang, Hao Chu
doaj   +1 more source

Large dynamic triaxial test of tire scrap reinforced soil

Shuiwen dizhi gongcheng dizhi
With the continuous increase in train speed standards, the vibration amplitude between wheels and tracks intensifies, resulting in greater loads transmitted to the subgrade.
Lihua LI, Yachao SUN, Zhi YE, Xuanyu SHEN, Junchao YANG, Jinzhong WANG   +5 more
doaj   +1 more source

PRACTICAL INVESTIGATION OF GEOGRID-REINFORCED GRANULAR SOIL AT CYCLIC LOAD [PDF]

Proceedings on Engineering Sciences
To examine the impact of confining pressure on the dynamic properties of geogrid-reinforced gravel soil under a similar dynamic stress ratio and dynamic stress amplitude, a dynamic triaxial test was conducted using the dynamic triaxial test apparatus ...
Hassan Ali Ahmed , Naser Abed Hassan , Mohammed Jassim Abed   +2 more
doaj   +1 more source

Critical packing in granular shear bands

, 2007
In a realistic three-dimensional setup, we simulate the slow deformation of idealized granular media composed of spheres undergoing an axisymmetric triaxial shear test.
A. Casagrande, A. N. Schofield, C. Lee, D. Daudon, H. Edelsbrunner, H. Sakaguchi, H. Tsunekawa, J. Desrues, J. Desrues, J. Kertész, J. Török, K. A. Alshibli, L. Cui, L. D. Landau, O. Reynolds, P. A. Cundall, S. Fazekas, S. Fazekas, S. N. Batiste, T. L. Youd, T. Pöschel, V. Trappe   +21 more
core   +1 more source

Comparison of Raw Acceleration from the GENEA and ActiGraph™ GT3X+ Activity Monitors [PDF]

, 2013
Purpose: To compare raw acceleration output of the ActiGraph™ GT3X+ and GENEA activity monitors. Methods: A GT3X+ and GENEA were oscillated in an orbital shaker at frequencies ranging from 0.7 to 4.0 Hz (ten 2-min trials/frequency) on a fixed radius of 5.
Dinesh John, Esliger, Freedson, Jeffer Sasaki, John, John, John, John, John Staudenmayer, Marianna Mavilia, Orendurff, Patty Freedson, Rothney, Santos-Lozano, Staudenmayer, Zhang   +15 more
core   +3 more sources