Results 31 to 40 of about 16,478 (248)

A simple method for the determination of sensitivity to density changes in sand liquefaction

Open Geomechanics, 2021
Fully saturated loose coarse-grained soils are known to be prone to liquefaction. Conventional laboratory tests for soil liquefaction include usually cyclic testing in triaxial apparatus.
Bozana Bacic
doaj   +1 more source

A constitutive model for unsaturated cemented soils under cyclic loading [PDF]

, 2008
On the basis of plastic bounding surface model, the damage theory for structured soils and unsaturated soil mechanics, an elastoplastic model for unsaturated loessic soils under cyclic loading has been elaborated.
Alonso, Baudet, C. Yang, Carol, Chai, Cui, Cui, Dafalias, Delage, Grabowska-Olszewska, J.M. Pereira, Leroueil, M.S. Huang, Osipov, Pastor, Pereira, Sharma, Sharma, van Genuchten, Wheeler, Wheeler, Y.J. Cui, Zienkiewicz   +22 more
core   +5 more sources

Experimental study on the cyclic resistance of a natural loess from Northern France [PDF]

, 2009
In order to analyze the instability phenomenon observed along the Northern High Speed Line of R\'eseau Ferr\'e de France (RFF), soil blocks were taken at a site near the railway, at four different depths (1.2, 2.2, 3.5 and 4.9 m).
Cui, Yu-Jun, Karam, Jean-Paul, Marchadier, Gilles, Tang, Anh-Minh, Terpereau, Jean-Marc   +4 more
core   +4 more sources

Calibration of an elastoplastic model of sand liquefaction using the swarm intelligence with a multi-objective function

Journal of Rock Mechanics and Geotechnical Engineering, 2023
According to post-seismic observations, spectacular examples of engineering failures can be ascribed to the occurrence of sand liquefaction, where a sandy soil stratum could undergo a transient loss of shear strength and even behave as a “liquid ...
Qiutong Li, Zhehao Zhu
doaj   +1 more source

Yielding of rockfill in relative humidity-controlled triaxial experiments [PDF]

, 2016
The final publication is available at Springer via http://dx.doi.org/10.1007/s11440-016-0437-9The paper reports the results of suction controlled triaxial tests performed on compacted samples of two well graded granular materials in the range of coarse ...
Alonso Pérez de Agreda, Eduardo, Ortega, Enrique, Romero Morales, Enrique Edgar   +2 more
core   +2 more sources

Research on micro-influence mechanism of fine particles on dynamic characteristics of graded macadam materials in heavy-haul railway subgrade beds

Case Studies in Construction Materials, 2023
Fine particle content is an important physical state parameter of graded macadam materials used in heavy-haul railway subgrade beds. Understanding the micro-influence mechanism of the fine particle content on the filler’s dynamical characteristics is of ...
Zhihao Yang, Siaw Ackah Frank, Huaiping Feng, Shaohua Li   +3 more
doaj   +1 more source

Smart Catheters for Diagnosis, Monitoring, and Therapy

Advanced Healthcare Materials, EarlyView.
This study presents a comprehensive review of smart catheters, an emerging class of medical devices that integrate embedded sensors, robotics, and communication systems, offering increased functionality and complexity to enable real‐time health monitoring, diagnostics, and treatment. Abstract This review explores smart catheters as an emerging class of
Azra Yaprak Tarman, Samiha Ahmed, Majed Othman Althumayri, Megan Guy, Darlenne Chavez Lugo, Frances S. Ligler, George T. Ligler, Rahmi Oklu, Hiroshi Kawahira, Michael J. McShane, Jun Kameoka, Jonathan Bova, Hatice Ceylan Koydemir   +12 more
wiley   +1 more source

Some contributions to mechanical behaviors of lacustrine deposit in Bogotá, Colombia

Journal of Rock Mechanics and Geotechnical Engineering, 2019
This paper presents the mechanical behaviors of the lacustrine deposit, a representative soil in Bogotá, Colombia. Initially, the physical characterization of the deposit is performed via laboratory tests (grain size distribution, scanning electron ...
Bernardo Caicedo, Cristhian Mendoza, Arcesio Lizcano, Fernando Lopez-Caballero   +3 more
doaj   +1 more source

Self‐Powered Flexible Triboelectric‐Gated Ion‐Gel Transistor for Neuromorphic Tactile Sensing and Human Activity Recognition

Advanced Materials, EarlyView.
A fully flexible ion‐gel‐gated graphene‐channel transistor driven by a triboelectric nanogenerator enables self‐powered tactile sensing and synaptic learning. Mimicking spike‐rate‐dependent plasticity, the device exhibits frequency‐selective potentiation and depression, supporting rate‐coded neuromorphic computation even under flex.
Hanseong Cho, Seoyeon Park, Youngmin Lee, Sejoon Lee   +3 more
wiley   +1 more source

Evolution of the Damping Ratio Considering Cyclic Confining Pressure Under Intermittent Cyclic Loading

Buildings
The damping ratio is essential to conducting dynamic analysis for underground engineering under traffic loading. Variations in the damping ratio are usually studied using cyclic triaxial tests with continuous cyclic loading; however, intermittent loading
Juehao Huang, Chao Meng, Yongqiang Zhou, Jian Chen, Xiaodong Fu, Mingyi Wang   +5 more
doaj   +1 more source