Results 31 to 40 of about 238,632 (305)

NUMERICAL SIMULATION OF STRESS WAVE PROPAGATION IN SAP CONCRETE [PDF]

open access: yesCivil Engineering Journal, 2018
The SAP (Super Absorbent Polymers) concrete is a new kind of concrete materials with uniformly distributed spherical pores with diameter of millimetre-size.
Zhenqun Sang   +4 more
doaj   +1 more source

Effects of initial compression stress on wave propagation in carbon nanotubes

open access: yes, 2009
An analytical method to investigate wave propagation in single- and double- walled carbon nanotubes under initial compression stress is presented.
Abe, S., Harigaya, K., Selim, M. M.
core   +2 more sources

Seismic Response for Wave Propagation across Joints with Equally and Unequally Close-Open Behaviours

open access: yesAdvances in Civil Engineering, 2018
The interaction between rock joints and seismic waves is critical in rock engineering when rock mass is suffered from human-induced or natural earthquakes.
Qi Zhang, Zhengliang Li, Tao Yu
doaj   +1 more source

Fluctuation Characteristic Test of Oblique Stress Waves in Infilled Jointed Rock and Study of the Analytic Method

open access: yesAdvances in Civil Engineering, 2020
The propagation of stress waves in filled jointed rocks involves two important influencing factors: transmission-reflection phenomena and energy attenuation.
Jin Yu   +4 more
doaj   +1 more source

Study on Bond Defect Detection in Grouted Rock Bolt Systems under Pullout Loads

open access: yesAdvances in Materials Science and Engineering, 2022
In grouted rock bolt systems, bond defects often occur, which seriously affects the safety of rock mass structures. Therefore, in this study, based on the existence of bond defects, laboratory tests were conducted to detect the location and length of ...
Shuisheng Yu   +4 more
doaj   +1 more source

Experimental investigation of wave propagation in three dimensions in unbounded particulate assemblies [PDF]

open access: yes, 2015
Understanding wave propagation through soils is essential for site response analysis in earthquake engineering, interpretation of geophysical surveys and SASW (Spectral Analysis of Surface Waves), interpretation of laboratory bender element tests, etc ...
Camenen, Jean-Francois   +5 more
core   +1 more source

Subsurface Stress Measurement in GIS Epoxy Composite by Using LCR Waves

open access: yesEnergies, 2020
Internal stress in basin insulators of gas-insulated metal-enclosed switchgear (GIS) can lead to cracks, which affects the safe operation of these apparatuses.
Zhouyiao Zou   +6 more
doaj   +1 more source

Stress Wave Propagation in Rock [PDF]

open access: yes, 1979
There are a number of pressing engineering and geophysical problems involving transient finite deformation of rock and rock masses. An interesting and representative example is a borehole drilled into a geological formation which is packed with explosives and detonated in an attempt to rubblize the adjacent medium for the purpose of in situ resource ...
openaire   +1 more source

Modeling stress wave propagation in rocks by distinct lattice spring model

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2014
In this paper, the ability of the distinct lattice spring model (DLSM) for modeling stress wave propagation in rocks was fully investigated. The influence of particle size on simulation of different types of stress waves (e.g. one-dimensional (1D) P-wave,
Gaofeng Zhao
doaj   +1 more source

Propagation and failure characteristics of stress wave of full anchor solid under dynamic load

open access: yesMeitan xuebao, 2023
Dynamic stresses severely disrupt and distort deep shaft roadways. It is critical to understand the stress wave propagation and damage characteristics of anchor support body under dynamic loads.
Jucai CHANG   +4 more
doaj   +1 more source

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