Results 21 to 30 of about 20,977 (265)

Biomechanical Characterisation of Thoracic Ascending Aorta with Preserved Pre-Stresses

open access: yesBioengineering, 2023
Mechanical properties of an aneurysmatic thoracic aorta are potential markers of future growth and remodelling and can help to estimate the risk of rupture.
Shaiv Parikh   +7 more
doaj   +1 more source

The Technology for Manufacturing HighStrength Pipe-Concrete Bearing Elements to Increase the Stability of Underground Structures [PDF]

open access: yesE3S Web of Conferences, 2019
It is proposed to use high bearing small-size pipe-concrete units in the construction of underground geotechnical structures instead of large-sized reinforced concrete units (support blocks, pylons, columns, etc.).
Uglianitsa Andrey, Pokatilov Youry
doaj   +1 more source

On Pre-Stressed Hull Structures

open access: yesInternational Journal of Recent Development in Engineering and Technology, 2021
“Wave-piercing” super-planing trimaran with air-born unloading, WPT, is developing of “wave-piercing” catamaran, WPC, for twice bigger achievable speeds. As all fast vessels, WPT needs for minimal weight of hull structures. Using of pre-stressed structures is a novel method of hull weight decreasing.
openaire   +1 more source

THE ESTIMATION OF PRE-STRESS FROM AE CHARACTERISTICS IN CYCLIC LOADING OF THE PRE-STRESSED ROCK

open access: yesDoboku Gakkai Ronbunshu, 1992
先行応力を人為的に与えた岩石の繰り返し載荷試験時に計測されたAEの発生特性から先行応力の推定を行い, 先行応力推定に及ぼす経過時間の影響について検討した. その結果, 先行応力除荷後の経過時間が長くなるとカイザー効果が不明瞭になるが, その場合においても, 2回目以降の載荷時において先行応力相当点にAE急増点が出現し, 先行応力を精度良く推定できることを示した. この繰り返し載荷時のAE特性による推定精度は, 経過時間が400日までの範囲で平均1.5%であった.
Masahiro SETO   +2 more
openaire   +2 more sources

Monitoring Pre-Stressed Composites Using Optical Fibre Sensors

open access: yesSensors, 2016
Residual stresses in fibre reinforced composites can give rise to a number of undesired effects such as loss of dimensional stability and premature fracture.
Sriram Krishnamurthy   +3 more
doaj   +1 more source

Optimization of concrete sleepers subjected to static and impact loadings

open access: yesEngineering Perspective, 2021
Prestressed concrete sleepers play an essential role in the railway track’s performance and safety responses, having an important function of transferring and distributing loads from the track’s superstructure to ballast bed.
Ndabamenye Theogene   +2 more
doaj   +1 more source

Shear behavior of concrete beams pre-stressed with carbon fiber reinforced polymer tendons

open access: yesAdvances in Mechanical Engineering, 2019
This article presents experimental and numerical studies on the shear behavior of reinforced concrete beams pre-stressed with carbon fiber reinforced polymer tendons.
Zuohu Wang   +4 more
doaj   +1 more source

INSTABILITY OF A PRE-STRESSED SOLID–FLUID MIXTURE [PDF]

open access: yesWaves and Stability in Continuous Media, 2006
A solid-fluid mixture is generally modelled assuming that the state of stress in the reference configuration is identically equal to zero. However, such an assumption is not always appropriate to take into account some instability phenomena occuring in Nature.
DELL'ISOLA, Francesco   +2 more
openaire   +1 more source

Selection of the optimal constellation of hybrid systems for pre-stressing

open access: yesMATEC Web of Conferences, 2017
Hybrid systems, which were created by integrating the structural systems of different behavior in the transfer of loads, represent a new efficient system, with low self-weight, increased capacity characteristics and reduced deformability compared to the ...
Miljanović Slađana, Zlatar Muhamed
doaj   +1 more source

Theoretical Study of the Reinforcement of Pre-stressed Concrete Cylinder Pipes with External Pre-stressed Strands

open access: yes, 2023
AbstractReinforcement of the pre-stressed concrete cylinder pipes with external pre-stressed strands is an effective way to enhance a prestressed concrete cylinder pipe’s ability to bear the design hydraulic pressure. A theoretical derivation is studied, and this formula derivation could be used to determine the cross-sectional area per unit length ...
Lijun Zhao, Tiesheng Dou
openaire   +1 more source

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