Results 1 to 10 of about 402,416 (268)

Application research on 5G technology in fatigue test of full-scale aircraft

open access: yesHangkong gongcheng jinzhan, 2023
With the development of aircraft demand, and emerging of new material and new process, the test and validation technology of aircraft structure strength will also face new challenges.
LIU Bing, ZHANG Jianfeng, MU Bin
doaj   +1 more source

Analysis of static response of RC beams with NSM CFRP/GFRP rods

open access: yesFracture and Structural Integrity, 2021
In this paper experimental results of investigation on reinforced concrete (RC) beams strengthened with the near surface method (NSM) are analyzed considering the response under bending tests on two beams. One of the RC beams was damaged by bending until
R. Capozucca   +2 more
doaj   +1 more source

The Removal of Selected Pharmaceuticals from Water by Adsorption with Granular Activated Carbons

open access: yesEngineering Proceedings, 2023
The article deals with the removal of 20 selected drugs from drinking water by sorption on granulated activated carbon. Two different sorption materials were used, and the efficiency of removing these micropollutants was compared.
Ján Ilavský, Danka Barloková
doaj   +1 more source

Multi-joint and Large Load Wing Load Processing Method

open access: yesHangkong gongcheng jinzhan, 2020
For test piece lacking the right outer wing portion, the many and complicated butt joints, and the large test load, will bring great difficulty to the application of the wing load. Therefore the independent loading clamp is designed for the three sets of
WANG Xintao, XIA Long, LIU Xingke
doaj   +1 more source

Evaluation of the static and multistage geocell pullout behavior in coarse grained soil [PDF]

open access: yesمهندسی عمران شریف, 2022
Geocell mattresses are one type of three-dimensional honeycomb soil reinforcements that is manufactured from polyethylene sheets using ultrasonically welded joints.
A. Namaei-kohal   +2 more
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.
Miran Merhar
doaj   +1 more source

Generating Methods of Severe Load Spectra for Airplanes Based on Statistic Analysis in Flight Subjects

open access: yesHangkong gongcheng jinzhan, 2019
Nowadays, the mean load spectra is mostly used in fatigue test for aircraft, but it has the defects of long fatigue cycle. The severe load spectra is used instead, which can shorten the test time greatly. In order to meet the demand of full-scale fatigue
Zhang Jiajia, Jiang Zuguo, Feng Jianmin
doaj   +1 more source

Mechanisms and Evolution of Cracks in Prestressed Concrete Sleepers Exposed to Time-Dependent Actions

open access: yesApplied Sciences, 2022
Railway sleepers are an important component of track systems, which can be manufactured by timber, concrete, steel and any other engineered materials. They serve as rail supports and transfer loads from trains to substructures of track systems.
Dan Li, Ruilin You, Sakdirat Kaewunruen
doaj   +1 more source

Application of Concurrent Test Management Technique in Full Civil Aircraft Fatigue Test

open access: yesHangkong gongcheng jinzhan, 2019
Full aircraft structure fatigue test, as a part of civil aircraft structure airworthiness verification test, is the most complicated, the most expensive and the most time-consuming.
Xia Feng, Mu Shanshan
doaj   +1 more source

Experimental and Numerical Investigation of Short-Term Behavior of Partially Precast and Partially Encased Composite Beams

open access: yesSlovak Journal of Civil Engineering, 2020
In this paper, the short-term behavior of a new partially pre-cast and partially encased composite (PPEC) beam is studied. This paper reports the results of a 4-point bending test on a full-scale PPEC beam and sets out the load displacement response ...
Zhang Liufeng, Yang Yinghua
doaj   +1 more source

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