Results 41 to 50 of about 52,911 (159)

Dynamic Properties and Dynamic Response Model of Jointed Granites by Cyclic Loading

open access: yesAdvances in Civil Engineering
The present study investigates the dynamic properties of granite samples with varying degrees of defects through triaxial cyclic loading experiments conducted under different conditions, including varied confining pressures, loading frequencies, dynamic ...
Xiaobin Ding, Junxing Zhao, Yaojun Dong
doaj   +1 more source

Factors Influencing Measurement of Dynamic Elastic Modulus from Disk-Shaped Concrete Specimen

open access: yesInternational Journal of Concrete Structures and Materials
The decrease in dynamic elastic modulus is a primary indicator of quantitative damage in concrete. To quantitatively assess depth-by-depth damage within a concrete structure, cylindrical specimens obtained through coring can be cut into disk specimens to
Min Suk Kim   +3 more
doaj   +1 more source

Research on shale dynamic and static elastic modulus and anisotropy based on pressurization history

open access: yesFrontiers in Earth Science
The dynamic and static elastic parameters of rocks exhibit differences. It is of great practical significance to carry out experiments on dynamic and static elastic parameters of rocks under reservoir conditions and determine the conversion relationship ...
Di Zhang   +13 more
doaj   +1 more source

Method for Determination of the Dynamic Elastic Modulus for Composite Materials

open access: yesEngineering Transactions, 2013
Majority of polymer matrix composite materials, a marked viscoelastic behavior and faculties of dissipation of energy, it thus proves necessary to know the viscoelastic properties, as the dynamic Young modulus.
Abdellah MASSAQ   +2 more
doaj   +1 more source

Dynamic mechanical properties of structural anisotropic coal under low and medium strain rates.

open access: yesPLoS ONE, 2020
The static mechanical properties of coal rock show anisotropism, which makes the permeability have anisotropic characteristics partly. The dynamic impact mechanical characteristics of structural anisotropic coal under low and medium strain rates were ...
Minmin Li   +4 more
doaj   +1 more source

KONSTANTA ELASTIK PADA POROSITAS HIDROKARBON BATUGAMPING DENGAN KONVERSI DINAMIK KE STATIK

open access: yesRekayasa, 2014
Pengukuran dinamik untuk mendapatkan konstanta elastik dihubungkan dengan besaran petrofisika utamanya porositas dan saturasi air sangat penting untuk penerapan penyebaran adanya reservoar.
Mochammad Ahied
doaj   +1 more source

Static elastic modulus prediction at early ages using a modified resonant test for concrete cylinders using mems microphones

open access: yesCase Studies in Construction Materials
Concrete Young’s modulus is seldom verified on-site due to the time-consuming and costly nature of current testing standards. This article proposes a new, quick and affordable testing methodology to estimate the ultimate static elastic modulus of normal ...
Cristóbal A. Lara   +3 more
doaj   +1 more source

Overview on Determination of Elastic and Damping Properties of Different Materials using Impulse Excitation Technique

open access: yesU.Porto Journal of Engineering, 2017
Knowledge of elastic and damping properties of materials is very relevant for the analysis and design of components, as they are relevant parameters in the performance of structural materials.
Inês Pereira
doaj   +1 more source

Dynamic Behavior and Energy Evolution Characteristic of Deep Roadway Sandstone Containing Weakly Filled Joint at Various Angles

open access: yesAdvances in Civil Engineering, 2020
Dynamic impact tests were carried out by implying split-Hopkinson pressure bar (SHPB) apparatus under three-dimensional stress state to investigate the influences of weakly filled joint at seven kinds of angles on dynamic behavior and energy evolution ...
Qinyong Ma, Qingqing Su, Pu Yuan
doaj   +1 more source

Determination of dynamic and static modulus of elasticity of beech plywood

open access: yesLes, 2020
The study compared the values of the dynamic and static modulus of elasticity of 7- and 11-layer plywood with different combinations of the grain orientation of individual veneer layers. The dynamic modulus of elasticity was determined from the natural frequencies of the first and second vibration modes using the Bernoulli-Euler equation, and the ...
openaire   +4 more sources

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