Results 31 to 40 of about 5,009,480 (335)

Experimental investigation and theoretical models on dynamic shear moduli and damping ratios for Yellow River sediment under different influence factors

open access: yes工程科学学报, 2023
The dynamic shear modulus and damping ratio are essential parameters for the site seismic response analysis of major projects. During highway construction along the Yellow River, the feasibility of using Yellow River sediment as a subgrade filler has ...
Yu-ke WANG   +3 more
doaj   +1 more source

Dynamic parameters of lime-improved saline soil under freeze-thaw and different temperatures

open access: yesYantu gongcheng xuebao, 2022
In order to study the stability of lime-improved saline soil roadbed in seasonal freezing areas, laboratory tests are conducted to analyze the change of the dynamic parameters under freeze-thaw and low-temperature environments.
XU Yong-li 1, DONG Zi-jian 1, ZHOU Ji-sen 2, TAN Hong-liang 2, ZHOU Jian-hang 2
doaj   +1 more source

Study on dynamic modulus of asphalt mixture in cold regionunder rotary accelerated loading [PDF]

open access: yesE3S Web of Conferences, 2021
In order to study the evolution law of mechanical properties of asphalt pavement mixture in cold regions under long-term load, the rotary accelerated loading equipment was used to carry out a total of 500,000 accelerated loading tests on the full-scale ...
Zhu Li   +4 more
doaj   +1 more source

Experimental Study on the Dynamic Modulus of an Asphalt Roadbed Grouting Mixture under the Influence of Complex and Multiple Factors

open access: yesBuildings, 2023
After long-term service, the ground will experience settlement and the stability of the roadbed will be lost. In order to effectively reinforce the roadbed, an asphalt roadbed grouting mixture has been applied to the filling of the roadbed.
Wuping Ran   +4 more
doaj   +1 more source

Permeability and dynamic elastic moduli of controlled porosity ultra-precision aerostatic structures [PDF]

open access: yes, 2014
Porous ceramic aerostatic bearings enable precise and smooth motion and improved stiffness compared with widely used orifice restrictor bearings. However, the processing techniques so far used are too complex or rely in lowering the sintering temperature
Corbett, John   +2 more
core   +1 more source

Comparative investigation on dynamic shear modulus and damping ratio of marine soils in different seas

open access: yesYantu gongcheng xuebao, 2020
To understand the variation characteristics of dynamic shear modulus G and damping ratio with the increasing depth H of marine soils, a series of resonant column tests are performed on silty clay with various depths taken from the three borehole ...
YANG Wen-bao 1, CHEN Guo-xing 1, 2, WU Qi 1, QIN You 1, ZHAO Kai 1, 2
doaj   +1 more source

Dynamic Characteristics of Warm Mix Foamed Asphalt Mixture in Seasonal Frozen Area

open access: yesAdvances in Materials Science and Engineering, 2019
In order to study dynamic characteristics of warm mix foamed asphalt mixture in seasonal frozen area, cylinder dynamic modulus test of four kinds of mixture with two gradations and three kinds of asphalt was carried out by UTM-100.
Yun Hou   +4 more
doaj   +1 more source

Young’s modulus of graphene: A molecular dynamics study [PDF]

open access: yesPhysical Review B, 2009
The Young's modulus of graphene is investigated through the intrinsic thermal vibration in graphene which is `observed' by molecular dynamics, and the results agree quite well with the recent experiment [Science \textbf{321}, 385 (2008)]. This method is further applied to show that the Young's modulus of graphene: 1.
Jiang, J.-W., Wang, J.-S., Li, B.
openaire   +2 more sources

Numerical Modeling of the Dynamic Elastic Modulus of Concrete

open access: yesMaterials, 2023
This article introduces simulations of theoretical material with controlled properties for the evaluation of the effect of key parameters, as volumetric fractions, elastic properties of each phase and transition zone on the effective dynamic elastic modulus.
Gustavo de Miranda Saleme Gidrão   +5 more
openaire   +2 more sources

Numerical Conversion Method for the Dynamic Storage Modulus and Relaxation Modulus of Hydroxy-Terminated Polybutadiene (HTPB) Propellants [PDF]

open access: yes, 2022
As a typical viscoelastic material, solid propellants have a large difference in mechanical properties under static and dynamic loading. This variability is manifested in the difference in values of the relaxation modulus and dynamic modulus, which serve
Li, Zhuo   +11 more
core   +1 more source

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