Results 31 to 40 of about 23,177 (159)

Tidal wind shear observed by meteor radar and comparison with sporadic E occurrence rates based on GPS radio occultation observations [PDF]

open access: yesAdvances in Radio Science, 2019
We analyze tidal (diurnal, semidiurnal, terdiurnal, quarterdiurnal) phases and related wind shear in the mesosphere/lower thermosphere as observed by meteor radar over Collm (51.3∘ N, 13.0∘ E).
C. Jacobi, C. Arras
doaj   +1 more source

Shear Layer and Wave Structure Over Partially Spanning Cavities

open access: yesJournal of the Korean Society of Visualization, 2013
Study of the wave structure and shear layer in the vicinity of a wall mounted cavity is done by time averaged colour schlieren and time resolved instantaneous shadowgraph technique in an M=1.7 flowfield. Effect of change of cavity width on flow structure is investigated by using constant length to depth (L/D) ratio cavity models with varying length to ...
Rajarshi Das, Heuy Dong Kim, Job Kurian
openaire   +2 more sources

Effect of CFRP Strips Orientation on Performance of Strengthened Deep Beams

open access: yesAl-Qadisiyah Journal for Engineering Science, 2019
This study was carried out in order to explore the behaviour of RC deep beams strengthening with CFRP strips. Eight simply supported deep beams were fabricated and tested under four-points loading scenario.
Ahmed Sagban Saadoon
doaj   +1 more source

Shear performance of poplar LVL beams with a hole in bending-shear spans

open access: yesStructures
Yes
Wang, A.   +4 more
openaire   +2 more sources

Localized shear and distributed strain accumulation as competing shear accommodation mechanisms in crustal shear zones: constraining their dictating factors [PDF]

open access: yesSolid Earth
Understanding the underlying mechanisms of strain localization in the Earth’s lithosphere is crucial for explaining the mechanics of tectonic plate boundaries and various failure-assisted geophysical phenomena, such as earthquakes.
P. Chatterjee, A. Roy, N. Mandal
doaj   +1 more source

Experimental Study on the Behavior of Steel–Concrete Composite Decks with Different Shear Span-to-Depth Ratios

open access: yesBuildings, 2021
This paper presents the results of an experimental study on the mechanical behaviors of steel‒concrete composite decks with different shear span-to-depth ratios. Herein, four composite decks categorized into two types with shear span-to-depth ratios of 2.
Sayan Sirimontree   +7 more
doaj   +1 more source

Investigations on the Shear Mechanism of Steel-Tube-Reinforced Concrete Shear Walls with a Low Shear-Span Ratio

open access: yesKSCE Journal of Civil Engineering, 2019
This paper describes the study of steel tube reinforced concrete (STRC) shear walls with a low shear-span ratio, in which steel tubes are embedded in the web of the shear wall. The addition of these steel tubes can significantly improve the shear behavior of ordinary RC shear walls. A series of cyclic loading tests allow us to examine the failure mode,
Liang Bai, Cai Zhang, Ergang Xiong
openaire   +1 more source

Analysis of fracture processes in reinforced concrete beams without stirrups

open access: yesFracture and Structural Integrity, 2021
The analysis of fracture processes which led to shear failure in reinforced concrete beams without transverse reinforcement was performed on the basis of test results from the author’s own experimental investigation and numerical simulations.
Marta Słowik
doaj   +3 more sources

Effect of shear span-to-depth ratio on the shear behavior of BFRP-RC deep beams [PDF]

open access: yesMATEC Web of Conferences, 2017
This study investigates the shear behavior of deep concrete beams reinforced with basalt fiber reinforced polymer (BFRP) bars for flexure without web reinforcements. The experimental testing performed herein consisted of a total of 4 short beams, three of which were reinforced with BFRP and one beam was reinforced with steel bars.
Alhamad Siyam   +5 more
openaire   +2 more sources

Experimental Study on the Shear Behavior of Reinforced Highly Ductile Fiber-Reinforced Concrete Beams with Stirrups

open access: yesBuildings, 2022
The aim of this study is to improve the shear behavior of reinforced concrete (RC) beams with stirrups by using highly ductile fiber-reinforced concrete (HDC), which is a fiber-reinforced cement-based composite material with tensile-strain-hardening ...
Min Zhang   +3 more
doaj   +1 more source

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