Journal articles: 'Shear Center'

1

KATORI, Hiroaki. "A Note on the Shear Center." Transactions of the Japan Society of Mechanical Engineers Series A 66, no. 641 (2000): 26–30. http://dx.doi.org/10.1299/kikaia.66.26.

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2

Lee, Sangcheol. "Shear Control of Elastomer Shear Pads for Variable Remote Center Compliance." Advanced Robotics 23, no. 1-2 (January 2009): 227–37. http://dx.doi.org/10.1163/156855308x392753.

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3

Reissner, E. "A note on the shear center problem for shear-deformable plates." International Journal of Solids and Structures 32, no. 5 (March 1995): 679–82. http://dx.doi.org/10.1016/0020-7683(94)00151-l.

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4

TSUCHIMOT, Takuo, and Hiroaki KATORI. "Shear center for thin-walled Composite Beams." Proceedings of Conference of Tokai Branch 2004.53 (2004): 47–48. http://dx.doi.org/10.1299/jsmetokai.2004.53.47.

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5

KATORI, Hiroaki. "Shear Center for Thin-Walled Cross Sections." Transactions of the Japan Society of Mechanical Engineers Series A 66, no. 651 (2000): 1996–2000. http://dx.doi.org/10.1299/kikaia.66.1996.

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6

Anić, Filip, and Davorin Penava. "STRESS OF ANGLE SECTION SUBJECTED TO TRANSVERSAL LOADING ACTING OUT OF THE SHEAR CENTER." Elektronički časopis građevinskog fakulteta Osijek 6, no. 10 (July 2, 2015): 10–21. http://dx.doi.org/10.13167/2015.10.2.

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7

Reissner, E. "The Shear Center Problem for Nonlinear Material Behavior." Journal of Applied Mechanics 62, no. 3 (September 1, 1995): 822–23. http://dx.doi.org/10.1115/1.2897024.

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8

Katori, Hiroaki. "Determination of Shear Center of Arbitrary Cross-Section." World Journal of Mechanics 06, no. 08 (2016): 249–56. http://dx.doi.org/10.4236/wjm.2016.68020.

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9

Pollock, Gerry D., Adam R. Zak, Harry H. Hilton, and M. Fouad Ahmad. "Shear center for elastic thin-walled composite beams." Structural Engineering and Mechanics 3, no. 1 (January 25, 1995): 91–103. http://dx.doi.org/10.12989/sem.1995.3.1.091.

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10

OHTA, Tohru. "122 The Shear Center of Open Section Beams." Proceedings of the 1992 Annual Meeting of JSME/MMD 2001 (2001): 53–54. http://dx.doi.org/10.1299/jsmezairiki.2001.0_53.

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11

Lee, Jaehong. "Center of gravity and shear center of thin-walled open-section composite beams." Composite Structures 52, no. 2 (May 2001): 255–60. http://dx.doi.org/10.1016/s0263-8223(00)00177-x.

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12

Reissner, E. "On some Ramifications of the Center of Shear Problem." ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik 72, no. 8 (1992): 315–19. http://dx.doi.org/10.1002/zamm.19920720802.

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13

Xiong, Xiao Li, Li Bin Jin, and Hui Wang. "Design Capacity of T-Strut Subject to Compressive Force." Advanced Materials Research 163-167 (December 2010): 550–56. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.550.

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T-struts subject to centroid compression buckle flexural-torsionally about their axis of symmetry. When the force is applied at the shear center of the section, T-struts buckle either flexurally or torsionally without coupling of flexure with twisting. Although the buckling load of shear center loading is greater than that of centroid loading, i.e. T-struts in elastic stage provide larger resistance to buckling about their axis of symmetry when the compression is applied at the shear center in lieu of the centroid of the section, T-struts with defect such as fabrication error, load eccentricity and residual stress always buckles in the elastic-plastic range actually, and the design capacity decrease by shifting the working line of a T-section compression chord to the shear center. That peculiarity is verified by the nonlinear buckling analysis of T-struts models in ANSYS.

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14

Kim, Moon-Young, Nam-Il Kim, and Sung-Bo Kim. "Spatial Stability of Shear Deformable Nonsymmetric Thin-Walled Curved Beams: A Centroid-Shear Center Formulation." Journal of Engineering Mechanics 132, no. 12 (December 2006): 1313–25. http://dx.doi.org/10.1061/(asce)0733-9399(2006)132:12(1313).

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15

Meslem, Amina, and Ilinca Nastase. "Cross and clover shaped orifice jets analysis at low Reynolds number." Thermal Science 19, no. 6 (2015): 2139–50. http://dx.doi.org/10.2298/tsci130724166m.

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The jet coming from a cross-shaped orifice with an open center has been shown in the past, to provide substantial increase in the near field convective transport-mixing, in comparison to a classical round orifice jet. Detailed information has been reported in previous works on the role played in the jet mixing enhancement by the crow of vortices composed of counter-rotating pairs of secondary streamwise structures which are developing in orifice?s troughs. A trough in the cross-shaped jet generates a local shear like the one generated by a triangular tab in a square jet. In the present study we are interested by the modification of local shears in the troughs of the cross-shaped jet, when orifice geometry is modified, such as the center of the orifice becomes closed, leading to a clover-shaped orifice. The general motivation is to understand the effect of using a set of combination of longitudinal structures, themselves produced by the superposition of local shear regions, in mixing performance of a cross jet. It is shown that lower entrainment rates in the clover jet is a results of a additional internal crown of vortices which opposes the external one due to inner shears generated by closing the center of the orifice.

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16

Holloway, A. G. L., and S. A. Ebrahimi-Sabet. "Heat Flux Measurements in Homogeneous Curved Shear Flow." Journal of Heat Transfer 121, no. 1 (February 1, 1999): 190–94. http://dx.doi.org/10.1115/1.2825941.

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Turbulent heat fluxes were measured far downstream of a fine heating wire stretched spanwise across a curved, uniform shear flow. The turbulence was approximately homogeneous and the overheat small enough to be passive. Strong destabilizing and stabilizing curvature effects were produced by directing the shear toward the center of curvature and away from the center of curvature, respectively. The dimensionless turbulent shear stress was strongly affected by the flow curvature, but the dimensionless components of the turbulent heat flux were found to be relatively insensitive.

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17

HIGASHIBATA, YASUO. "SHEAR DUCTILITY OF R/C SHEAR WALL WITH SLIDE MECHANISM AT THE CENTER OF WALL PANEL." Journal of Structural and Construction Engineering (Transactions of AIJ) 381 (1987): 61–72. http://dx.doi.org/10.3130/aijsx.381.0_61.

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18

Engeln, Joseph F., Seth Stein, John Werner, and Richard G. Gordon. "Microplate and shear zone models for oceanic spreading center reorganizations." Journal of Geophysical Research 93, B4 (1988): 2839. http://dx.doi.org/10.1029/jb093ib04p02839.

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19

Venkatakrishnan, P., M. J. Hagyard, and D. H. Hathaway. "Evaluation of magnetic shear in off-disk center active regions." Solar Physics 122, no. 2 (1989): 215–26. http://dx.doi.org/10.1007/bf00912993.

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20

Chen, Tsing-Chang, Jenq-Dar Tsay, and Jun Matsumoto. "Interannual Variation of the Cold-Season Rainfall Center in the South China Sea." Journal of Climate 30, no. 2 (January 2017): 669–88. http://dx.doi.org/10.1175/jcli-d-16-0419.1.

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During 15 November–31 December, a cold-season rainfall center appears in the southern part of the South China Sea (SCS) north of northwestern Borneo and juxtaposed along the southwest–northeast direction with rainfall centers for the Malay Peninsula and the Philippines. This SCS rainfall center also coincides geographically with the SCS surface trough. An effort is made to explore the formation mechanism of this rainfall center. It is primarily formed by the second intensification of heavy rainfall/flood cold surge vortex [CSV(HRF)] through its interaction with a cold surge flow over the SCS trough. Both the SCS rainfall center and the SCS surface trough are located at the easterly flow north of the near-equator trough. Modulated by the interannual variation of the cyclonic shear flow along the near-equator trough in concert with the El Niño–Southern Oscillation (ENSO) cycle, the SCS rainfall center undergoes an interannual variation. The impact of this ENSO cycle is accomplished through the regulation of CSV(HRF) trajectories originating from the Philippines vicinity and Borneo and propagating to different destinations. Rain-producing efficiency determined by the interannual variation of the divergent circulation accompanies the cyclonic shear flow around the near-equator trough in response to this ENSO cycle.

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21

Batra, R. C., and De-Shin Liu. "Adiabatic Shear Banding in Plane Strain Problems." Journal of Applied Mechanics 56, no. 3 (September 1, 1989): 527–34. http://dx.doi.org/10.1115/1.3176122.

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Plane strain thermomechanical deformations of a viscoplastic body are studied with the objective of analyzing the localization of deformation into narrow bands of intense straining. Two different loadings, namely, the top and bottom surfaces subjected to a prescribed tangential velocity, and these two surfaces subjected to a preassigned normal velocity, are considered. In each case a material defect, flaw, or inhomogeneity is modeled by introducing a temperature bump at the center of the specimen. The solution of the initial boundary value problem by the Galerkin-Adams method reveals that the deformation eventually localizes into a narrow band aligned along the direction of the maximum shearing strain. For both problems, bands of intense shearing appear to diffuse out from the center of the specimen.

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22

Duan, Chun Zheng, Min Jie Wang, and Yu Jun Cai. "Mechanism of Material Softening in Primary Shear Zone during Serrated Chip Formation in High Speed Machining of High Strength Steel." Key Engineering Materials 407-408 (February 2009): 504–8. http://dx.doi.org/10.4028/www.scientific.net/kem.407-408.504.

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The metallurgical observations of microstructure characteristics of the adiabatic shear bands(ASB) within the primary shear zones of the serrated chips produced during high speed machining high strength steel have been performed by using optical microscope, SEM and TEM. The observations showed that the microstructure between the matrix and the center of the ASB gradually was changed, the fine equiaxed grains appeared with size of about 0.4～0.6μm in the center of the adiabatic shear band. The serrated chip formation was likely due to material softening that occurred in the primary shear zones. The microstructural development of dynamic recovery and rotational dynamic recrystallization is the dominant metallurgical process leading to material softening in primary shear zone during high speed machining. A model of microstructural development in primary shear zone during serrated chip formation in high speed machining was suggested by analyzing material softening mechanism.

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23

Herman, Gregory R., Erik R. Nielsen, and Russ S. Schumacher. "Probabilistic Verification of Storm Prediction Center Convective Outlooks." Weather and Forecasting 33, no. 1 (January 25, 2018): 161–84. http://dx.doi.org/10.1175/waf-d-17-0104.1.

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Abstract Eight years’ worth of day 1 and 4.5 years’ worth of day 2–3 probabilistic convective outlooks from the Storm Prediction Center (SPC) are converted to probability grids spanning the continental United States (CONUS). These results are then evaluated using standard probabilistic forecast metrics including the Brier skill score and reliability diagrams. Forecasts are gridded in two different ways: one with a high-resolution grid and interpolation between probability contours and another on an 80-km-spaced grid without interpolation. Overall, the highest skill is found for severe wind forecasts and the lowest skill is observed for tornadoes; for significant severe criteria, the opposite discrepancy is observed, with highest forecast skill for significant tornadoes and approximately no overall forecast skill for significant severe winds. Highest climatology-relative skill is generally observed over the central and northern Great Plains and Midwest, with the lowest—and often negative—skill seen in the West, southern Texas, and the Atlantic Southeast. No discernible year-to-year trend in skill was identified; seasonally, forecasts verified the best in the spring and late autumn and worst in the summer and early autumn. Forecasts are also evaluated in CAPE-versus-shear parameter space; forecasts struggle most in very low shear but also in high-shear, low-CAPE environments. In aggregate, forecasts for all variables verified more skillfully using interpolated probability grids, suggesting utility in interpreting forecasts as a continuous field. Forecast reliability results depend substantially on the interpretation of the forecast fields, but day 1 and day 2–3 tornado outlooks consistently exhibit an underforecast bias.

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24

Spencer, D. B., J. W. Temple, D. M. Forsythe, and B. E. Bond. "Large-Scale Rotary Shear Shredder Performance Testing." Journal of Energy Resources Technology 107, no. 2 (June 1, 1985): 289–96. http://dx.doi.org/10.1115/1.3231192.

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Slow-speed rotary shear shredders have recently received considerable attention for processing of municipal solid waste. Potential benefits from shear shredding could include reduced explosion potential, lower power consumption, lower operating and maintenance costs and less overgrinding of glass. Although there has been much interest in rotary shear shredders, little actual operating data exists showing the capacity and performance of these units on municipal solid waste at full scale. A large-scale, 50 tph (45.3 tonnes/hr) Iowa Manufacturing Company (Cedarapids) Model 5096 (127 cm × 244 cm) shear shredder was installed and has been evaluated over a 6-mo period at the Charleston County Solid Waste Reduction Center. Two Heil 42F vertical shaft hammermills also are operated at the reduction center. Long-term landfill tests were conducted on waste processed by both shredders to measure the performance of the shear shredder and compare the effect of shredder type on landfilling characteristics. These results show capacity in excess of 60 tph (54.4 tonnes/hr) using 4-in. (10-cm) cutters and comparable landfilling characteristics for both types of shredders.

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25

KATORI, Hiroaki. "306 A Note on the Shear Center : Thin-walled Cross Section." Proceedings of Conference of Tokai Branch 2000.49 (2000): 143–44. http://dx.doi.org/10.1299/jsmetokai.2000.49.143.

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26

Kim, Nam-II, and Moon-Young Kim. "Thin-walled curved beam theory based on centroid-shear center formulation." Journal of Mechanical Science and Technology 19, no. 2 (February 2005): 589–604. http://dx.doi.org/10.1007/bf02916181.

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27

Gu, C., and F. Y. M. Wan. "Approximate solutions for the shear center of plates of variable thickness." Archive of Applied Mechanics 63, no. 8 (1993): 513–21. http://dx.doi.org/10.1007/bf00804753.

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28

Wei, Jing, Xin Long Liang, Wei Sun, and Li Cun Wang. "Numerical Simulation of Flow Field Dynamics Characteristics for One Novel Twin-Screw Kneader." Applied Mechanics and Materials 271-272 (December 2012): 1049–55. http://dx.doi.org/10.4028/www.scientific.net/amm.271-272.1049.

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The numerical simulation for dynamic characteristics of the flow field of a novel twin-screw kneader is carried out. The flow field model of the twin-screw kneader is established, and the three-dimensional, isothermal and steady numerical analysis of non-Newtonian fluid is presented based on computational fluid dynamics (CFD) theory, and the characteristics under the conditions of different speeds and center distances such as the distribution of pressure and velocity field, the maximum shear stress, the mass flow rate and so on, are studied. The research results show that: with increasing speed, the maximum flow pressure, the mass flow rate, the maximum shear stress will increase; the maximum shear stress increases first and then decreases with increasing of center distance of the screw rotors, while the mass flow rate increases with increasing of center distance; but when the center distance reaches a certain degree, the mass flow rate will be negative and the material will appear serious reflux which can lead the kneader to stopping working.

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29

Kosmatka, J. B., H. C. Lin, and S. B. Dong. "On Saint-Venant’s Problem for an Inhomogeneous, Anisotropic Cylinder—Part II: Cross-Sectional Properties." Journal of Applied Mechanics 68, no. 3 (July 21, 2000): 382–91. http://dx.doi.org/10.1115/1.1365152.

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Cross-sectional properties of a prismatic inhomogeneous, anisotropic cylinder are determined from Saint-Venant solutions for extension-bending-torsion and flexure, whose method of construction was presented in a previous paper. The coupling of extensional, bending, and twisting deformations due to anisotropy and inhomogeneity leads to some very interesting features. Herein, it is shown that for an inhomogeneous, anisotropic cylinder whose cross-sectional plane is not a material symmetry plane, distinct modulus-weighted and compliance-weighted centroids and distinct principal bending axes are possible. A line of extension-bending centers is given on which an axial force causes extension and bending only but no twist. Two shear centers are given, one using the Griffith-Taylor definition that ignores cross-sectional warpages and the other by stipulating a zero mean rotation over the cross section. The center of twist is discussed, and this property depends on root end fixity conditions that are prescribed in terms of their mean values based on integrals over the cross section rather than by a pointwise specification. While these shear center and center of twist definitions have some rational bases, it is recognized that other definitions are possible, for example those based on modulus or compliance-weighted integrals. Two examples, an angle and a channel, both composed of a two-layer ±30 deg angle-ply composite material, illustrate the procedures for determining these cross-sectional properties.

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30

Wang, Bingfeng, Xu Ding, Ying Mao, Lanyi Liu, and Xiaoyong Zhang. "Nanoindentation and Microstructure in the Shear Band in a Near Beta Titanium Alloy Ti-5Al-5Mo-5V-1Cr-1Fe." Materials 12, no. 24 (December 5, 2019): 4065. http://dx.doi.org/10.3390/ma12244065.

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Shear localization is the main deformation mode for the near beta titanium alloy Ti-5Al-5Mo-5V-1Cr-1Fe loaded at high strain rates at either room temperature or cryogenic temperature. Nanoindentation, transmission electron microscopy, and high-resolution electron microscopy technique are applied to character the microstructure features and mechanical properties in the shear band of near beta titanium alloy. A white and straight band is observed in the shear region. Both microhardness and nanoindentaion hardness in the shear region are inferior to those in matrix. The different microstructure in the edge and the center in the shear band contribute to different mechanical properties. The plasticity of the entire shear band is almost homogenous when specimens are deformed at the cryogenic temperature. Rotational dynamic recrystallization is responsible for the formation of the ultrafine grains in the shear band. The edge of the shear band is composed of elongated grains, while there are ultrafine equiaxed grains in the center of the shear band. Deformation temperature has significant influence on the process of the grain refinement and the phase transformation in the shear band (SB). The grain sizes of the shear band in the specimen deformed at room temperature are larger than those in the specimens deformed at cryogenic temperature. The shear band consists of α phase grains in the specimen deformed at room temperature, and the shear band consists of α phase and lath-like α′ phase grains in the specimen deformed at cryogenic temperature. Finally, the mechanisms for phase transformation in the shear band are illustrated.

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31

Molinari, John, Peter Dodge, David Vollaro, Kristen L. Corbosiero, and Frank Marks. "Mesoscale Aspects of the Downshear Reformation of a Tropical Cyclone." Journal of the Atmospheric Sciences 63, no. 1 (January 1, 2006): 341–54. http://dx.doi.org/10.1175/jas3591.1.

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Abstract The downshear reformation of Tropical Storm Gabrielle (2001) was investigated using radar reflectivity and lightning data that were nearly continuous in time, as well as frequent aircraft reconnaissance flights. Initially the storm was a marginal tropical storm in an environment with strong 850–200-hPa vertical wind shear of 12–13 m s−1 and an approaching upper tropospheric trough. Both the observed outflow and an adiabatic balance model calculation showed that the radial-vertical circulation increased with time as the trough approached. Convection was highly asymmetric, with almost all radar return located in one quadrant left of downshear in the storm. Reconnaissance data show that an intense mesovortex formed downshear of the original center. This vortex was located just south of, rather than within, a strong downshear-left lightning outbreak, consistent with tilting of the horizontal vorticity associated with the vertical wind shear. The downshear mesovortex contained a 972-hPa minimum central pressure, 20 hPa lower than minimum pressure in the original vortex just 3 h earlier. The mesovortex became the new center of the storm, but weakened somewhat prior to landfall. It is argued that dry air carried around the storm from the region of upshear subsidence, as well as the direct effects of the shear, prevented the reformed vortex from continuing to intensify. Despite the subsequent weakening of the reformed center, it reached land with greater intensity than the original center. It is argued that this intensification process was set into motion by the vertical wind shear in the presence of an environment with upward motion forced by the upper tropospheric trough. In addition, the new center formed much closer to the coast and made landfall much earlier than predicted. Such vertical-shear-induced intensity and track fluctuations are important to understand, especially in storms approaching the coast.

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32

Gan, Min, Yu Yu, Liren Li, and Xisheng Lu. "Steel Plate Cold-Rolled Section Steel Embedded High-Strength Concrete Low-Rise Shear Wall Seismic Performance." Advances in Civil Engineering 2018 (September 12, 2018): 1–18. http://dx.doi.org/10.1155/2018/8362319.

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Four test pieces with different steel plate center-to-center distances and reinforcement ratios are subjected to low-cycle repeat quasistatic loading to optimize properties as failure mode, hysteretic curve, skeleton curve, energy dissipation parameters, strength parameters, and seismic performance of high-strength concrete low-rise shear walls. The embedded steel plates are shown to effectively restrict wall crack propagation, enhance the overall steel ratio, and improve the failure mode of the wall while reducing the degree of brittle failure. Under the same conditions, increasing the spacing between the steel plates in the steel plate concrete shear wall can effectively preserve the horizontal bearing capacity of the shear wall under an ultimate load. The embedded steel plates perform better than concealed bracing in delaying stiffness degeneration in the low-rise shear walls, thus safeguarding their long-term bearing capacity. The results presented here may provide a workable basis for shear wall design optimization.

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33

Junting, Luo, Xue Yahong, Liu Yongkang, Li Jianyong, and Zhao Shuangjing. "Stress and Strain Analysis and Microstructure of Al/Cu Clad Composite Fabricated by Cold Extrusion." Archives of Metallurgy and Materials 61, no. 4 (December 1, 2016): 1813–18. http://dx.doi.org/10.1515/amm-2016-0293.

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Abstract A five-zone describing model for extrusion of aluminum/copper clad composite was established. Stress and strain were also analyzed by finite element method. The distribution rules of grain size were researched by critical shear strain theory, and zoning phenomenon of grain size was discovered. The grain size of deformed aluminum material becomes gradually finer from center to the interface. The grain size is much fine and the critical shear strain reaches the maximum value in the interface. The grain size of copper material reduces gradually from center to both the interface and exterior surface, which is caused by the higher value of critical shear strain in the interface and exterior surface. The analysis results were verified by microstructure observation and mechanical properties test, indicating that the distribution of grain size for cold extrusion forming can be interpreted by critical shear strain theory.

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Liang, Xiaoyu, Wei Yang, and Lingxin Zhang. "Numerical simulation of the rheological properties of fiber suspensions in turbulent pipe flows." International Journal of Numerical Methods for Heat & Fluid Flow 25, no. 3 (April 7, 2015): 639–50. http://dx.doi.org/10.1108/hff-04-2013-0114.

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Purpose – The purpose of this paper is to study numerically the rheological properties of fiber suspensions flowing through turbulent pipe flows. Design/methodology/approach – The work presented in this paper is derived the fluctuating equation for fiber orientation distribution function (FODF) in turbulent flows and solved using the method of characteristics. The FODF is predicted numerically. The numerical results of root-mean-square velocities generated by kinetic simulation sweeping model and are compared with the experimental data. Findings – The fiber orientation distribution becomes wider with increasing Re. The components of the fourth-order orientation tensor increase with the increase of Re, and also increase along the radial direction and reach the maximum at the center line. The first normal stress difference is much less than the shear stress. For different Re the shear stress increases rapidly in the region far from the pipe center, and reaches its maximums at center, while the first normal stress difference decreases rapidly in the region far from the pipe center, and reaches its minimum at center finally. Originality/value – By solving numerically the equation in a turbulent pipe flow with Reynolds number ranging from 2,500 to 1,000, the authors obtain the mean FODF which is in agreement with the experimental one qualitatively. Then the shear stress and first normal stress difference of suspensions are calculated based on the mean FODF.

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Yeoh, O. H. "Fracture Mechanics of Bond Failure in the “Pure Shear” Test Piece." Rubber Chemistry and Technology 76, no. 2 (May 1, 2003): 483–94. http://dx.doi.org/10.5254/1.3547755.

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Abstract The “pure shear” test piece consists of a thin, rectangular strip of rubber held by or bonded to rigid grips along its long edges. When the grips are pulled apart, the rubber in the center of the test piece is in a deformed state close to pure shear. This test piece is commonly used for studies of fracture in rubber (rubber tear) because it is amenable to simple fracture mechanics analyses. The “pure shear” test piece may also be used for study of failure at the rubber-to-metal bond. Its geometry and manner of loading make it especially useful for study of long-term durability of bonds in corrosive environments such as in a salt fog chamber. This paper discusses non-linear finite element analysis results for failure at the bond of the “pure shear” test piece. Results are compared with well-known results for analogous cases in rubber tear. Short and long cracks located in the center and at the free edges are considered.

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36

Guo, H., J. Wen, N. M. Xiao, Z. F. Zhang, and M. L. Sui. "The more shearing, the thicker shear band and heat-affected zone in bulk metallic glass." Journal of Materials Research 23, no. 8 (August 2008): 2133–38. http://dx.doi.org/10.1557/jmr.2008.0258.

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In a compression test for a Zr-based bulk metallic glass, a dominant shear band was preserved before fracture by a cylindrical stopper. A heat-affected zone (HAZ) ∼10 μm thick together with shear band was discovered in the center of the deformed sample by preferential ion milling. By using a low aspect ratio sample for compression, diverse micron-scaled HAZs among multiple shear bands were also revealed. Based on above experimental results and the isothermal source model, it was found that the thickness of shear band and its HAZ increased continuously with the progression of shear deformation.

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37

Xiong, Xiao Li, Li Bing Jin, and Hui Wang. "Equivalent Slenderness Ratio Method for Design of T-Struts Subject to Compressive Force." Advanced Materials Research 243-249 (May 2011): 135–41. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.135.

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T-struts subject to centroid compression buckle flexural-torsionally about their axis of symmetry. When the force is applied at the shear center of the section, T-struts buckle either flexurally or torsionally without coupling of flexure with twisting. Although the buckling load about the symmetry-axis of shear center loading is greater than that of centroid loading, the design capacity of T-struts with defect such as fabrication error, load eccentricity and residual stress decrease by shifting the working line of a T-section compression chord to the shear center. This feature is not well known to designer of constructional steel. This article presents the equivalent slenderness ratio method, a new method for the design of T-struts subject to compressive force, introduces another three methods including the one presented by Shaofan Chen, the one in code and the one in ANSYS, contrasts the calculation results of those four methods and recommends the implementation of equivalent slenderness ratio method in the design of T-struts subject to compressive force.

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38

Kim, Nam-Il, and Moon-Young Kim. "Free vibration and elastic analysis of shear-deformable non-symmetric thin-walled curved beams: A centroid-shear center formulation." Structural Engineering and Mechanics 21, no. 1 (September 10, 2005): 19–33. http://dx.doi.org/10.12989/sem.2005.21.1.019.

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39

Mohebkhah, Amin. "Lateral buckling resistance of inelastic I-beams under off-shear center loading." Thin-Walled Structures 49, no. 3 (March 2011): 431–36. http://dx.doi.org/10.1016/j.tws.2010.11.007.

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40

Béguin, Gilbert H. "Graphical Determination of the Shear Center in Thin-Walled Asymmetrical U Profiles." Practice Periodical on Structural Design and Construction 15, no. 2 (May 2010): 177–81. http://dx.doi.org/10.1061/(asce)sc.1943-5576.0000044.

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Whitney, D. E., and J. M. Rourke. "Mechanical Behavior and Design Equations for Elastomer Shear Pad Remote Center Compliances." Journal of Dynamic Systems, Measurement, and Control 108, no. 3 (September 1, 1986): 223–32. http://dx.doi.org/10.1115/1.3143771.

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Commercially available Remote Center Compliances (RCC’s) are made with elastic elements called elastomer shear pads. If these pads are assumed to be linear two-component springs, it is easy to derive equations for the RCC’s composite elastic behavior. These equations can be quite incorrect, however, because the pads are in fact nonlinear six component springs. RCC performance equations incorporating models of real pad behavior are presented here, together with experimental verification. These show that real RCC’s have less stiffness and less compliance center projection than predicted by the linear models. A new design that overcomes these problems is also presented.

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JOO, Sangwan, and Fumio MIYAZAKI. "On the Mechanics of Elastomer Shear Pads for Remote Center Compliance (RCC)." Transactions of the Institute of Systems, Control and Information Engineers 9, no. 8 (1996): 383–91. http://dx.doi.org/10.5687/iscie.9.383.

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Martinez, David, Radu Presura, Sandra Wright, Chris Plechaty, Stephan Neff, Lucas Wanex, and David J. Ampleford. "Generation of shear flow in conical wire arrays with a center wire." Astrophysics and Space Science 322, no. 1-4 (November 29, 2008): 205–8. http://dx.doi.org/10.1007/s10509-008-9947-8.

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Chen, Shaofan. "Buckling of T-strut subject to compressive force on its shear center." Journal of Constructional Steel Research 63, no. 3 (March 2007): 332–36. http://dx.doi.org/10.1016/j.jcsr.2006.05.002.

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Et. al., Kesava Rao B,. "Shear Walls Induced RC Structures." Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 2 (April 10, 2021): 1827–34. http://dx.doi.org/10.17762/turcomat.v12i2.1520.

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In recent years, the construction of skyscrapers has been on the rise to overcome the shortage of land. These buildings are subject to an external lateral force, such as an earthquake and wind pressure. Pushover analysis (POA) has been broadly used in predicting the earthquake response of structures, and shear walls have been shown to be lateral drag elements. Therefore, in the present work, the effect of placing a shear wall on the periphery symmetrically, the periphery asymmetrically and in the center of the building is performed using the ETABS software. Using the response spectrum methodand thetime history method, a dynamic analysis is performed. Responses such as floor shear, floor displacement, and lateral floor shifts due to seismic forces are evaluated for various locations of the shear wall. According to the results and analysis, the shear wall on the symmetrical periphery of the structure is reducing the displacement and deviation of the floor compared to other cases.

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Uchida, Takanori. "Effects of Inflow Shear on Wake Characteristics of Wind-Turbines over Flat Terrain." Energies 13, no. 14 (July 21, 2020): 3745. http://dx.doi.org/10.3390/en13143745.

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The scope of the present study was to understand the wake characteristics of wind-turbines under various inflow shears. First, in order to verify the prediction accuracy of the in-house large-eddy simulation (LES) solver, called RIAM-COMPACT, based on a Cartesian staggered grid, we conducted a wind-tunnel experiment using a wind-turbine scale model and compared the numerical and experimental results. The total number of grid points in the computational domain was about 235 million. Parallel computation based on a hybrid LES/actuator line (AL) model approach was performed with a new SX-Aurora TSUBASA vector supercomputer. The comparison between wind-tunnel experiment and high-resolution LES results showed that the AL model implemented in the in-house LES solver in this study could accurately reproduce both performances of the wind-turbine scale model and flow characteristics in the wake region. Next, with the LES solver developed in-house, flow past the entire wind-turbine, including the nacelle and the tower, was simulated for a tip-speed ratio (TSR) of 4, the optimal TSR. Three types of inflow shear, N = 4, N = 10, and uniform flow, were set at the inflow boundary. In these calculations, the calculation domain in the streamwise direction was very long, 30.0 D (D being the wind-turbine rotor diameter) from the center of the wind-turbine hub. Long-term integration of t = 0 to 400 R/Uin was performed. Various turbulence statistics were calculated at t = 200 to 400 R/Uin. Here, R is the wind-turbine rotor radius, and Uin is the wind speed at the hub-center height. On the basis of the obtained results, we numerically investigated the effects of inflow shear on the wake characteristics of wind-turbines over a flat terrain. Focusing on the center of the wind-turbine hub, all results showed almost the same behavior regardless of the difference in the three types of inflow shear.

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Kong, Xiangxin, Yingchun Han, Wenduo Chen, Fengchao Cui, and Yunqi Li. "Understanding conformational and dynamical evolution of semiflexible polymers in shear flow." Soft Matter 15, no. 31 (2019): 6353–61. http://dx.doi.org/10.1039/c9sm00600a.

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Choi, Hyun Ki, J. S. Kim, E. S. Jin, and Chang Sik Choi. "An Experimental Study on Shear Reinforcement Methods of Interior Flat Plate-Column Connections." Key Engineering Materials 385-387 (July 2008): 857–60. http://dx.doi.org/10.4028/www.scientific.net/kem.385-387.857.

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This research is an experimental study on full-scale interior slab-column connections of flat-plate. Three types of shear reinforcements were proposed to prevent brittle punching shear failure that could result in collapse of whole flat plate structures. A series of four flat plate specimens including a specimen without shear reinforcement and three specimens with the reinforcements was tested. The dimension of the slabs was 2620*2725*180mm and the specimens had a 600*800mm square column at the center of the slabs. The slabs were tested up to failure using monotonic vertical shear forces. The presences of the shear reinforcements substantially increased punching shear capacity and ductility of the interior slab-column connections.

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Houpert, L. "New Results of Traction Force Calculations in Elastohydrodynamic Contacts." Journal of Tribology 107, no. 2 (April 1, 1985): 241–45. http://dx.doi.org/10.1115/1.3261033.

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The lubricant shear modulus G and Ree-Eyring shear stress τ0 are determined in this work by using Roelands’, rather than Barus’, relationship for calculating the lubricant viscosity. When using Roelands’ viscosity, elastic effects in the lubricant tend to be negligible, especially when inlet shear heating and displacement of the center of pressure are considered. These results are illustrated by examples in which inlet shear heating has been calculated, or when the lateral traction force obtained by spinning was known. In some cases, elastic effects are indeed present, though much reduced, and this leads to greater values of the lubricant shear modulus. The Ree-Eyring shear stress found when using the Roelands’ viscosity is also greater.

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Varyukhin, Viktor, Yan Beygelzimer, R. Kulagin, O. Prokof'eva, and Alexey Reshetov. "Twist Extrusion: Fundamentals and Applications." Materials Science Forum 667-669 (December 2010): 31–37. http://dx.doi.org/10.4028/www.scientific.net/msf.667-669.31.

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We present a study of the kinematics of Twist Extrusion (TE) and show that the mode of deformation in ТЕ is a simple shear. Unlike in Equal-Channel Angular Pressing (ECAP), there are two main shear layers perpendicular to the specimen axis. TE has a significant commercial potential due to the following physical effects: intensive grain refinement; homogenization and mixing; intensive powder consolidation. Donetsk Institute for Physics and Engineering created a TE Center to showcase the process and educate investors. Our experience with the center has shown that the most prospective directions are producing ultrafine-grained (UFG) alloys for medical and aircraft applications.

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Journal articles on the topic 'Shear Center'

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