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Flexural rigidity

About: Flexural rigidity is a research topic. Over the lifetime, 3829 publications have been published within this topic receiving 56780 citations.


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TL;DR: In this paper, the effects of steel fibers, longitudinal tensile reinforcement ratio and concrete compressive strength on the flexural behavior of reinforced concrete beams were tested to study the effect of steel fiber content on the effective moment of inertia from uncracked to fully cracked sections.

83 citations

Journal ArticleDOI
TL;DR: In this paper, a combination model accounting for slip and including flexure from thermal stresses and differential subsidence is presented, which accounts for lateral variations in flexural rigidity from brittle and ductile yielding due to both thermal and flexural stresses and explains both the amplitudes and shape of the anomalies along each fracture zone.
Abstract: Geosat geoid undulations over four Pacific fracture zones have been analyzed. After correcting for the isostatic thermal edge effect, the amplitudes of the residuals are shown to be proportional to the age offset. The shape of the residuals seems to broaden with increasing age. Both geoid anomalies and available ship bathymetry data suggest that slip must sometimes occur on the main fracture zone or secondary faults. Existing models for flexure at fracture zones cannot explain the observed anomalies. A combination model accounting for slip and including flexure from thermal stresses and differential subsidence is presented. This model accounts for lateral variations in flexural rigidity from brittle and ductile yielding due to both thermal and flexural stresses and explains both the amplitudes and the shape of the anomalies along each fracture zone. The best fitting models have mechanical plate thicknesses that are described by the depth to the 600-700 C isotherms.

83 citations

Journal ArticleDOI
TL;DR: In this article, the authors propose a justification of the rotational elastic spring model of an open crack in a beam in bending deformation, which leads to a simple and efficient determination of exact closed-form solutions of both static and dynamic problems for beams with multiple cracks.

82 citations

Journal ArticleDOI
TL;DR: In this article, an analysis of the initial load-extension behavior of plain-woven fabrics is presented, Castigliano's theorem being used as the principal method of attack.
Abstract: An analysis of the initial load–extension behaviour of plain-woven fabrics is presented, Castigliano's theorem being used as the principal method of attack. Yarn compression and extension are taken into account in addition to yarn bending rigidity. The theory is compared with some experimental data.

82 citations

Journal ArticleDOI
TL;DR: In this paper, the effects of leaf shape, serration, roughness and flexural rigidity on drag force imposed by flowing water and its time variability were experimentally studied in an open-channel flume at seven leaf Reynolds numbers ranging from 5 to 35 × 103.
Abstract: The effects of leaf shape, serration, roughness and flexural rigidity on drag force imposed by flowing water and its time variability were experimentally studied in an open-channel flume at seven leaf Reynolds numbers ranging from 5 to 35 × 103. The study involved artificial leaves of the same surface area but with three shapes (‘elliptic’, ‘rectangular’ and ‘pinnate’), three flexural rigidities, smooth-edge and sawtooth-like serration, and three combinations of surface roughness (two-side rough, one-side rough/one-side smooth, and two-side smooth). Shape was the most important factor determining flow-leaf interactions, with flexural rigidity, serration and surface roughness affecting the magnitude but not the direction of the effect on drag control. The smooth-edge elliptic leaf had a better hydrodynamic shape as it experienced less drag force, with the rectangular leaf showing slightly less efficiency. The pinnate leaf experienced higher drag force than the other leaves due to its complex geometry. It is likely that flow separation from 12 leaflets of the pinnate leaf prevented leaf reconfiguration such as leaflets folding and/or streamlining. Flexural rigidity strongly influenced the leaf reconfiguration and augmented the serration effect since very rigid leaves showed a strong effect of serration. Furthermore, serration changed the turbulence pattern around the leaves by increasing the turbulence intensity. Surface roughness was observed to enhance the drag force acting on the leaf at high Reynolds numbers. The results also suggest that there are two distinctly different flow-leaf interaction regimes: (I) regime of passive interaction at low turbulence levels when the drag statistics are completely controlled by the turbulence statistics, and (II) regime of active interaction at high turbulence levels when the effect of leaf properties on the drag statistics becomes comparable to the turbulence contribution.

82 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202395
2022201
2021171
2020163
2019178
2018146