Results 31 to 40 of about 214,838 (291)

Prediction of porosity of pervious concrete based on its dynamic elastic modulus

open access: yesResults in Materials, 2021
In this research, we put forward a simple physical model of pervious concrete (PC) consisting of pore, aggregate and cement paste to evaluate theoretically the elastic modulus–porosity relationship.
Ridengaoqier E, Shigemitsu Hatanaka
doaj   +1 more source

Influence of shear stress applied during flow stoppage and rest period on the mechanical properties of thixotropic suspensions [PDF]

open access: yes, 2008
We study the solid mechanical properties of several thixotropic suspensions as a function of the shear stress history applied during their flow stoppage and their aging in their solid state.
G. Ovarlez   +7 more
core   +5 more sources

Undrained Dynamic Behavior of Reinforced Subgrade under Long-Term Cyclic Loading

open access: yesAdvances in Materials Science and Engineering, 2018
To study the dynamic behavior of reinforced subgrade, a series of undrained cyclic triaxial tests of reinforced soil (the specimen a height of 50 cm and a diameter of 20 cm) were performed in this paper.
Min Geng, Debin Wang, Peiyong Li
doaj   +1 more source

Eccentric Exercise Reduces Upper Trapezius Muscle Stiffness Assessed by Shear Wave Elastography and Myotonometry

open access: yesFrontiers in Bioengineering and Biotechnology, 2020
In this study, we tested the hypotheses that unaccustomed eccentric exercise (ECC) would reduce the elastic modulus and dynamic stiffness of the upper trapezius muscle and that these changes would correlate with increases in muscle thickness, reflecting ...
Aleksandra Kisilewicz   +5 more
doaj   +1 more source

Effect of nano-SiO2 and nano-CaCO3 on the static and dynamic properties of concrete

open access: yesScientific Reports, 2022
Three kinds of nano-concrete, i.e., 2.0% nano-SiO2 doped, 2.0% nano-CaCO3 doped and 1.0% nano-SiO2-1.0% nano-CaCO3 co-doped concretes (NS, NC, NSC) were prepared for a study on static property and dynamic property under different strain rates (50–130 s−1)
Zhi-hang Wang   +4 more
doaj   +1 more source

A New Correlation for Estimating Static Elastic Properties of Sandstone Formations: Case Study from Rumaila Oilfield

open access: yesIraqi Geological Journal
Evaluating the elastic characteristics of reservoir's rocks is crucial for the oil and gas sector to reduce risks throughout drilling and production operations. Elastic parameters are essential for prediction of wellbore stability, estimation of
Doaa Mahdi, Ayad Alrazzaq
doaj   +1 more source

Linear hydrodynamics and viscoelasticity of nematic elastomers

open access: yes, 2001
We develop a continuum theory of linear viscoelastic response in oriented monodomain nematic elastomers. The expression for dissipation function is analogous to the Leslie-Ericksen version of anisotropic nematic viscosity; we propose the relations ...
Terentjev, E. M., Warner, M.
core   +1 more source

Calibration of the dynamic behaviour of incomplete structures in archeological sites: The case of Villa Diomede portico in Pompeii [PDF]

open access: yes, 2017
This paper reports the research activities carried out on Villa Diomede in Pompeii, built during the "Pre-Roman period" (i.e. the 3rd century BC) and discovered between 1771 and 1774 during the archaeological excavations.
Lorenzoni, F.   +4 more
core   +1 more source

Dynamic Characteristics of Lightweight Aggregate Self-Compacting Concrete by Impact Resonance Method

open access: yesAdvances in Civil Engineering, 2021
Understanding the dynamic behavior of Lightweight Aggregate Self-Compacting Concrete (LWASCC) is of importance to the safety of concrete structures serving in dynamic loading conditions.
Ning Li   +7 more
doaj   +1 more source

MgB2: synthesis, sound velocity, and dynamics of the vortex phase

open access: yes, 2002
The sound velocity is measured in polycrystalline MgB2 synthesized from the elements, and the bulk modulus and the Debye temperature are calculated. The conversion of an elastic wave into electromagnetic radiation is investigated in the mixed state.The ...
Bykov, A. N.   +8 more
core   +1 more source

Home - About - Disclaimer - Privacy