Results 31 to 40 of about 1,253,700 (267)

Experimental Study on the Damage Mechanism of Reinforced Concrete Beams Based on Acoustic Emission Technique

open access: yesApplied Sciences, 2023
The purpose of this paper is to investigate the developmental process of internal damage in prestressed concrete beams under static loading conditions.
Jianqing Bu   +3 more
doaj   +1 more source

Effect of hygrothermal environment on mechanical properties and damage mechanism of CFRP

open access: yesCailiao gongcheng, 2019
The moisture absorption properties of carbon fiber reinforced plastics (CFRP) laminates treated with three kinds of hygrothermal environments (relative humidity 85% RH, temperature 25, 70, 85℃ respectively) were investigated by accelerated moisture ...
YANG Xu-dong   +3 more
doaj   +1 more source

Damage Effects of Electron Irradiation with Different Energy on Mechanical Properties of Polyethylene Heat-shrinkable Sleeves

open access: yesJournal of Aeronautical Materials, 2016
Damage effects of electron irradiation with different energy on mechanical properties of polyethylene heat-shrinkable sleeves were studied by irradiating the sleeves with 45 keV, 1 MeV and 2 MeV electrons respectively.
LIU Yuming   +4 more
doaj   +1 more source

Structural components and stress damage mechanism of coal and rock mass

open access: yesMeikuang Anquan, 2021
In order to study the distribution law and development mechanism of coal and rock mineral composition and fracture occurrence in its damage and failure process under static stress conditions, X-ray diffractometer(XRD) and electron microscope (SEM) are ...
SHAO Dongliang, WANG Fangtian
doaj   +1 more source

Effect of aramid core-spun yarn on impact resistance of aramid/epoxy composite

open access: yesFrontiers in Materials, 2023
Introduction: The surface of aramid filament is smooth, which is a great defect for impact resistance and composite molding of aramid/epoxy composite.
Yajing Miao   +14 more
doaj   +1 more source

Effect of Turning on the Surface Integrity and Fatigue Life of a TC11 Alloy in Very High Cycle Fatigue Regime

open access: yesMetals, 2020
In this work, the effect of a turning process on fatigue performance of a Ti-6.5Al-3.5Mo-1.5Zr-0.3Si (TC11) titanium alloy is studied in the high cycle fatigue (HCF) and very high cycle fatigue (VHCF) regimes.
Tao Gao   +6 more
doaj   +1 more source

Research Status of Slag Corrosion Resistance in Magnesia Chrome Refractories Applied in Copper Metallurgy

open access: yesKuangchan zonghe liyong, 2023
This is a paper in the field of ceramic materials for metallurgy. Magnesia chrome refractory is widely used in copper industry due to its excellent high temperature strength, fine slag corrosion resistance and good performance.
Guolong Ni, Shuhuan Wang, Qun Li
doaj   +1 more source

A Comparative Study on the Flexural Behavior of UHPC Beams Reinforced with NPR and Conventional Steel Rebars

open access: yesBuildings
This study investigates how different longitudinal steel rebars influence the flexural performance and cracking mechanisms of reinforced ultra-high-performance concrete (UHPC) beams, combining axial tensile tests using acoustic emission monitoring with ...
Jin-Ben Gu   +4 more
doaj   +1 more source

In-plane shear constitutive model for 2D-C/SiC composites

open access: yesJournal of Aeronautical Materials
In order to characterize in-plane shear behavior of 2D-C/SiC composites,a macroscopic cross-ply laminate model and a microscopic mini-composite model were proposed,considering damage mechanisms such as matrix cracking,interface debonding,and fiber ...
LIN Jiangrong, YANG Chengpeng, JIA Fei
doaj   +1 more source

Experimental and Numerical Study on the Blast Performance of RC Shear Walls Under Uniaxial Compression

open access: yesBuildings
This study addresses a critical gap in blast-resistant design by investigating the influence of axial compression ratio—a previously underexplored parameter—on the dynamic response of reinforced concrete (RC) shear walls under close-in explosions.
Wenzhe Luo   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy