Results 11 to 20 of about 7,797 (174)

Study on Dynamic Impact Mechanical Properties of UHPC with High-Content and Directional Reinforced Steel Fiber [PDF]

open access: yesApplied Sciences, 2023
Ultra-high-performance concrete (UHPC) is a kind of building material with ultra-high strength, toughness, and durability. However, under the conditions of ordinary molding technology, most of the fibers cannot play a bridging role in the direction of ...
Kewei Sun   +4 more
doaj   +2 more sources

PARAMETRIC ANALYSIS OF THE DYNAMIC BEHAVIOUR OF RC COLUMNS WITH THE CONFINEMENT EFFECT OF OVERLAPPING HOOPS SUBJECTED TO LATERAL RAPID LOADINGS [PDF]

open access: yesCivil Engineering Journal, 2018
To further examine the effect of the strain rate on the behaviour of hoop-confined reinforced concrete (RC) columns, the dynamic behaviour of overlapping hoop-confined RC columns subjected to lateral rapid loadings is investigated by applying finite ...
Xiang Zeng, Bin Xu
doaj   +3 more sources

Dynamic Mechanical Properties and Fractal Characteristics of Polypropylene Fiber-Reinforced Cement Soil under Impact Loading [PDF]

open access: yesAdvances in Materials Science and Engineering, 2019
This paper aims to study the dynamic mechanical properties, failure patterns, fractal behaviors, and energy dissipation of polypropylene fiber-reinforced cement soil under impact loading.
Yi-xin Mo, Jian-yong Pang, Jin-kun Huang
doaj   +2 more sources

Dynamic compressive mechanical properties of fibre-reinforced geopolymer concrete [PDF]

open access: yesCase Studies in Construction Materials
To investigate the influence of different fibre types on the dynamic mechanical properties of geopolymer concrete (GPC), this study conducted experimental research on fibre-reinforced geopolymer concrete (FRGC) incorporating either steel or basalt fibres.
Jihao Su   +5 more
doaj   +2 more sources

Energy absorption at high strain rate of glass fiber reinforced mortars [PDF]

open access: yesEPJ Web of Conferences, 2015
In this paper, the dynamic behaviour of cement mortars reinforced with glass fibers was studied. The influence of the addition of glass fibers on energy absorption and tensile strength at high strain-rate was investigated. Static tests in compression, in
Fenu Luigi, Forni Daniele, Cadoni Ezio
doaj   +2 more sources

Effect of mesostructure on quasi-static and dynamic tensile strength of rock: insights from a breakable grain-based model [PDF]

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources
Accurately predicting rock tensile strength under varying strain rates is crucial for tunnel construction, as rock often fails in tension. This study examines the effect of rock mesostructure on tensile strength using a breakable grain-based model (GBM ...
Cheng Pan   +3 more
doaj   +2 more sources

Investigations of Dynamic Mechanical Performance of Rubber Concrete under Freeze-Thaw Cycle Damage [PDF]

open access: yesShock and Vibration, 2023
In order to study the effect of the freeze-thaw cycle on the integrity and dynamic mechanical performance of rubber concrete, the wave speed of rubber concrete specimens with 10% rubber volume was measured by a nonmetallic ultrasonic detector. The impact
Jingli Zhang
doaj   +2 more sources

Investigation on dynamic mechanical properties of fly ash/slag-based geopolymeric recycled aggregate concrete [PDF]

open access: yes, 2022
By harnessing the benefits from both construction and demolition waste recycling and geopolymer binders, geopolymeric recycled aggregate concrete (GRAC) can contribute to the green and eco-friendly construction material products.
Luo, Z, Li, W, Tang, Z, Tam, VWY
core   +3 more sources

Influence of friction on the dynamic increase factor of concrete compressive strength in a split Hopkinson pressure bar test [PDF]

open access: yes, 2022
Ā© 2022 The AuthorsThis study includes the experimental and numerical research conducted to establish a standardized lubrication technique for a concrete split Hopkinson pressure bar (SHPB) test.
Kim, Kyoung-Min   +2 more
core   +1 more source

Investigation on Triaxial Dynamic Model Based on the Energy Theory of Bedding Coal Rock under Triaxial Impact Compression

open access: yesShock and Vibration, 2021
To investigate the dynamic failure characteristics of bedding rocks in depth, a series of dynamic impact compression tests on parallel and vertical bedding coal rocks were conducted by the split Hopkinson pressure bar test system at 10–103 sāˆ’1 strain ...
Yang Xue   +4 more
doaj   +1 more source

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