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Journal articles on the topic 'Rigid Surface'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Konyukhov, Alexander, and Karl Schweizerhof. "On some aspects for contact with rigid surfaces: Surface-to-rigid surface and curves-to-rigid surface algorithms." Computer Methods in Applied Mechanics and Engineering 283 (January 2015): 74–105. http://dx.doi.org/10.1016/j.cma.2014.08.013.

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2

Gukov, Sergei, and Edward Witten. "Rigid Surface Operators." Advances in Theoretical and Mathematical Physics 14, no. 1 (2010): 87–178. http://dx.doi.org/10.4310/atmp.2010.v14.n1.a3.

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3

Miškinis, P., and G. Karlikauskas. "Rigid surface bag model." Nuclear Physics A 683, no. 1-4 (February 2001): 339–58. http://dx.doi.org/10.1016/s0375-9474(00)00442-5.

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4

Attenborough, Keith, Imran Bashir, and Shahram Taherzadeh. "Surface waves over rigid-porous and rough surfaces." Journal of the Acoustical Society of America 133, no. 5 (May 2013): 3351. http://dx.doi.org/10.1121/1.4805688.

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5

Chaky, J., K. Anderson, M. Moss, and L. Vaillancourt. "Surface Hydrophobicity and Surface Rigidity Induce Spore Germination in Colletotrichum graminicola." Phytopathology® 91, no. 6 (June 2001): 558–64. http://dx.doi.org/10.1094/phyto.2001.91.6.558.

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We investigated the relationship between physical characteristics of artificial surfaces, spore attachment, and spore germination in Colletotrichum graminicola. Surface hydrophobicity and surface rigidity were both signals for breaking dormancy and initiating spore germination, but spore attachment alone was not an important inducing signal. The presence of a carbon source overrode the necessity for a rigid, hydrophobic substrate for spore germination. Spore attachment was typically stronger to more hydrophobic surfaces, but certain hydrophilic surfaces also proved to be good substrates for spore attachment. In contrast to spore germination, appressorial induction was more dependent on attachment to a rigid substrate than it was on surface hydrophobicity. Appressoria were induced efficiently on hydrophilic surfaces, as long as there was significant conidial attachment to those surfaces.

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6

Markeev, A. P. "The dynamics of a rigid body colliding with a rigid surface." Regular and Chaotic Dynamics 13, no. 2 (April 2008): 96–129. http://dx.doi.org/10.1134/s1560354708020044.

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7

SANO, Akihito, Tasuku NAKAYAMA, Yoshihiro TANAKA, and Hideo FUJIMOTO. "2P1-L03 Soft-feel Rigid-surface." Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2009 (2009): _2P1—L03_1—_2P1—L03_2. http://dx.doi.org/10.1299/jsmermd.2009._2p1-l03_1.

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8

Allary, Jean-Charles, Veronica Mapstone, Jean-Pierre Guillon, and Michel Guillon. "Rigid gas permeable lens surface evaluation." Journal of The British Contact Lens Association 12 (January 1989): 18–19. http://dx.doi.org/10.1016/s0141-7037(89)80081-3.

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9

Hansson, Erik, and Anders Klarbring. "Rigid contact modelled by CAD surface." Engineering Computations 7, no. 4 (April 1990): 344–48. http://dx.doi.org/10.1108/eb023821.

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10

Liu, Ya-Shu, Han-Bing Yan, and Ralph R. Martin. "As-Rigid-As-Possible Surface Morphing." Journal of Computer Science and Technology 26, no. 3 (May 2011): 548–57. http://dx.doi.org/10.1007/s11390-011-1154-3.

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11

Voskoboinick, V. A., O. A. Voskoboinyk, A. M. Onishchenko, and A. V. Voskobijnyk. "TRANSVERSELY STREAMLINED CYLINDER ON RIGID SURFACE." Journal of Numerical and Applied Mathematics, no. 1 (135) (2021): 87–94. http://dx.doi.org/10.17721/2706-9699.2021.1.11.

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The results of experimental studies are presented in order to study the features of the formation of separated and vortex flows in the vicinity of a transversely streamlined cylinder on the surface of a hydraulically smooth rigid surface and to determine the space-time characteristics of sources of wall pressure fluctuations. The studies were carried out in laboratory conditions on transversely streamlined cylinders, which were located on a rigid surface. The field of wall pressure fluctuations was measured by a group of miniature piezoceramic pressure fluctuation sensors, which were installed flush with the streamlined rigid surface in front of the cylinder and in its wake. The research results were processed and analyzed using the mathematical apparatus of the theory of probability and mathematical statistics. The spectral and correlation characteristics of the separated flow in the vicinity of a transversely streamlined cylinder are obtained.

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12

MITSUI, KENTARO. "BIMEROMORPHIC GEOMETRY OF RIGID ANALYTIC SURFACES." International Journal of Mathematics 22, no. 04 (April 2011): 483–513. http://dx.doi.org/10.1142/s0129167x11006878.

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13

Xiao-Yan, Wang, and Ding Shi-Liang. "Studies of Rigid Rotor-Rigid Surface Scattering in Dynamical Lie Algebraic Method." Communications in Theoretical Physics 41, no. 3 (March 15, 2004): 357–61. http://dx.doi.org/10.1088/0253-6102/41/3/357.

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14

Childs, S. J. "Incipient Motion Criteria for a Rigid Sediment Grain on a Rigid Surface." Journal of Engineering Mechanics 127, no. 5 (May 2001): 524–29. http://dx.doi.org/10.1061/(asce)0733-9399(2001)127:5(524).

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15

Berry, David L., Shahram Taherzadeh, and Keith Attenborough. "Acoustic surface wave generation over rigid cylinder arrays on a rigid plane." Journal of the Acoustical Society of America 146, no. 4 (October 2019): 2137–44. http://dx.doi.org/10.1121/1.5126856.

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16

Chatterjee, Abhishek, and Alan Bowling. "Modeling three-dimensional surface-to-surface rigid contact and impact." Multibody System Dynamics 46, no. 1 (January 2, 2019): 1–40. http://dx.doi.org/10.1007/s11044-018-09660-2.

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17

Zhu, Yufeng, Robert Bridson, and Chen Greif. "Simulating rigid body fracture with surface meshes." ACM Transactions on Graphics 34, no. 4 (July 27, 2015): 1–11. http://dx.doi.org/10.1145/2766942.

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18

Budd, Chris, Peng Huang, Martin Klaudiny, and Adrian Hilton. "Global Non-rigid Alignment of Surface Sequences." International Journal of Computer Vision 102, no. 1-3 (August 4, 2012): 256–70. http://dx.doi.org/10.1007/s11263-012-0553-4.

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19

Jing, Tengyue, Yeongae Kim, Sangmin Lee, Dongseob Kim, Jinyul Kim, and Woonbong Hwang. "Frosting and defrosting on rigid superhydrohobic surface." Applied Surface Science 276 (July 2013): 37–42. http://dx.doi.org/10.1016/j.apsusc.2013.02.105.

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20

Ru, C. Q. "Surface Instability of a Semi-Infinite Elastic Body Under Surface van der Waals Forces." Journal of Applied Mechanics 71, no. 1 (January 1, 2004): 138–40. http://dx.doi.org/10.1115/1.1636791.

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It is shown that the surface of a semi-infinite linear elastic body attracted by a rigid flat through van der Waals-like forces is always unstable. The wavelength of the surface wrinkling is finite and decreases with the van der Waals interaction coefficient. In particular, this result implies that the deformation field of the semi-infinite linear elastic body attracted by a rigid flat cannot be determined uniquely.

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21

Mahajan, Amit, Paras Ram, and Oluwole Daniel Makinde. "Penetrative Internally Heated Convection in Magnetic Fluids." Defect and Diffusion Forum 387 (September 2018): 373–84. http://dx.doi.org/10.4028/www.scientific.net/ddf.387.373.

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Convection in an internally heated magnetic fluid is analyzed for rigid – rigid and rigid – free boundary surfaces with zero temperature at top and no heat flux at the lower surface. Linear stability analysis is performed for a variety of internal heat source models and the corresponding Eigen value problem is solved by Chebyshev Pseudospectral method.

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22

Cunefare, K. A., and G. H. Koopmann. "Acoustic Design Sensitivity for Structural Radiators." Journal of Vibration and Acoustics 114, no. 2 (April 1, 1992): 178–86. http://dx.doi.org/10.1115/1.2930247.

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An analysis technique designated as acoustic design sensitivity (ADS) analysis is developed via the numerical treatment of a discrete quadratic expression for the total acoustic power radiated by a three-dimensional extended structure. A boundary element formulation of the Helmholtz Integral Equation is the basis of the analysis leading to the quadratic power expression. Partial differentiation of the quadratic power expression with respect to a known surface velocity distribution leads to a sensitivity distribution, represented by a distribution of values on the surface of a structure. The sensitivity values represent a linear approximation to the change in the total radiated power caused by changes in the surface velocity distribution. For a structure vibrating with some portions of its surface rigid and such that the acoustic wavelength is long compared to a characteristic dimension of the structure, ADS analysis reveals that the rigid surfaces strongly influence the sensitivity distribution, as expected. Under such conditions, the rigid surfaces can exhibit the maximum value of the entire sensitivity distribution, even though the acoustic intensity is identically zero on a rigid surface. As the frequency increases, and the acoustic wavelength becomes comparable to a characteristic dimension of the structure, the position of the maximum value of the sensitivity distribution will coincide with the region of the maximum surface acoustic intensity.

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23

Lee, V. W., M. E. Manoogian, and S. Chen. "Antiplane SH-deformations near a surface rigid foundation above a subsurface rigid circular tunnel." Earthquake Engineering and Engineering Vibration 1, no. 1 (June 2002): 27–35. http://dx.doi.org/10.1007/s11803-002-0004-2.

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24

Fuller, Keith. "Effect of Surface Roughness on the Adhesion of Elastomers to Hard Surfaces." Materials Science Forum 662 (November 2010): 39–51. http://dx.doi.org/10.4028/www.scientific.net/msf.662.39.

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The work presented started with the aim of trying to explain why clean smooth surfaces of materials such as metals brought gently into contact show no adhesion. The observation by Johnson Kendall & Roberts of adhesion between smooth surfaces of an elastomeric hemisphere and a rigid substrate suggested a model contact system with which the effect of surface roughness could be investigated experimentally. Moreover the Johnson-Kendal-Roberts (JKR) contact theory could be used to predict the effect of roughness on adhesion. The observations and predictions obtained are compared, and the implications for the contact of two rigid materials outlined. The limitations of the validity of the predictions are mentioned. Further studies of the adhesion to rough surfaces, in particular the phenomenon of enhanced adhesion at low roughness, will be discussed. Finally, more recent theoretical work is briefly referred to.

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25

ARAMAYONA, JAVIER, and CHRISTOPHER J. LEININGER. "FINITE RIGID SETS IN CURVE COMPLEXES." Journal of Topology and Analysis 05, no. 02 (May 20, 2013): 183–203. http://dx.doi.org/10.1142/s1793525313500076.

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We prove that curve complexes of surfaces are finitely rigid: for every orientable surface S of finite topological type, we identify a finite subcomplex 𝔛 of the curve complex [Formula: see text] such that every locally injective simplicial map [Formula: see text] is the restriction of an element of [Formula: see text], unique up to the (finite) pointwise stabilizer of 𝔛 in [Formula: see text]. Furthermore, if S is not a twice-punctured torus, then we can replace [Formula: see text] in this statement with the extended mapping class group Mod ±(S).

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26

Majumdar, B. C., and M. K. Ghosh. "Stability of a Rigid Rotor Supported on Rough Oil Journal Bearings." Journal of Tribology 112, no. 1 (January 1, 1990): 73–77. http://dx.doi.org/10.1115/1.2920233.

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This investigation deals with the stability of rigid rotors supported on finite rough oil journal bearings using perturbation method. The effect of various surface roughness parameters, viz., composite surface roughness, roughness orientation pattern and variance ratio on the stability has been studied. In general, surface roughness effect when incorporated into the analysis does not show a significant change in the stability for surfaces having same roughness structure. However, the effect of variance ratio (i.e., surfaces having different roughness structure) on stability is quite marked.

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27

EAMES, I., and M. A. GILBERTSON. "Aerated granular flow over a horizontal rigid surface." Journal of Fluid Mechanics 424 (November 16, 2000): 169–95. http://dx.doi.org/10.1017/s0022112000001920.

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The effect of a vertical gas flow on the dynamics of a coulombic granular material moving over a horizontal rigid porous surface has been studied experimentally and theoretically. The presence of a fluidizing gas significantly alters the granular flow dynamics. When the gas velocity, ug, is below the minimum fluidization velocity, umf, the effect of the gas is to reduce the angle of repose θ from the value measured in the absence of a gas flow. When material is poured from a point source onto a horizontal surface it forms a pile, which adjusts through episodic avalanching to a self-similar conical shape. Under these conditions, the development of the pile is determined by the local force balance on individual particles and its extent may be expressed in terms of the volume of particles added and the angle of repose. A volume of material is poured continuously from a point source onto a surface according to Qtα. Below the minimum uidization velocity, a quasi-static description gives the encroachment distance of the granular pile as l = (2Q/(2π/3)n−1 tan θ)1/n+1tα/n+1 where n = 1 for a planar release and n = 2 for an axisymmetric release.A continuum description of fluidized granular flow has been developed by vertically averaging the mass and momentum conservation equations and including the momentum exchange between the gas and granular flow. The bulk movement is driven along the ground by horizontal gradients of particle pressure and is resisted by a viscous drag force due to the particles moving horizontally through a vertical gas flow. Above the minimum fluidization velocity the character of the granular flow is significantly altered and takes on fluid-like properties. The model predicts the shape of the fluidized granular pile and that the encroachment distance grows as l = λnα (Q(ug + umf) / ε)1/n+2tα+1/n+2, where ε is the void fraction in the bed and λnα is a constant. Below the conditions for fluidization (ug < umf), the pile of granular material grows quasi-statically when t > t∗, where t∗ ∼ (εn+1Qug + umf) / μ2+n (umf − ug)2+n) 1/1+n−α corresponds to the critical time when frictional forces are comparable to gradients of particle pressure and the drag force. Numerical solutions describing the granular flow are presented.Experimental observations of the shape and extent of planar and axisymmetric granular flows when α = 1 compare well with theoretical predictions for various values of particle volume flux Q, time t, and gas flow rate ug. The mathematical description of fluidized granular flows along rigid surfaces indicates a strong analogy with buoyancy-driven flows in a porous medium. This analogy permits extension of our description to include flows down slopes and the effect of internal stratification.

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28

Wyllard, Niclas. "Rigid surface operators and S-duality: some proposals." Journal of High Energy Physics 2009, no. 05 (May 29, 2009): 125. http://dx.doi.org/10.1088/1126-6708/2009/05/125.

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29

Zhang, Zhiyuan, KangKang Yin, and Kelvin W. C. Foong. "Symmetry Robust Descriptor for Non-Rigid Surface Matching." Computer Graphics Forum 32, no. 7 (October 2013): 355–62. http://dx.doi.org/10.1111/cgf.12243.

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30

Hough, D. A. "Quantifying the surface characteristicsof rigid gas permeable lenses." Journal of The British Contact Lens Association 12 (January 1989): 27–28. http://dx.doi.org/10.1016/s0141-7037(89)80084-9.

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31

Wang, Sen, Yinghao Gao, Hailin Huang, Bing Li, Hongwei Guo, and Rongqiang Liu. "Design of deployable curved-surface rigid origami flashers." Mechanism and Machine Theory 167 (January 2022): 104512. http://dx.doi.org/10.1016/j.mechmachtheory.2021.104512.

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32

Warren, T. L., A. Majumdar, and D. Krajcinovic. "A Fractal Model for the Rigid-Perfectly Plastic Contact of Rough Surfaces." Journal of Applied Mechanics 63, no. 1 (March 1, 1996): 47–54. http://dx.doi.org/10.1115/1.2787208.

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In this study a continuous asymptotic model is developed to describe the rigid-perfectly plastic deformation of a single rough surface in contact with an ideally smooth and rigid counter-surface. The geometry of the rough surface is assumed to be fractal, and is modeled by an effective fractal surface compressed into the ideally smooth and rigid counter-surface. The rough self-affine fractal structure of the effective surface is approximated using a deterministic Cantor set representation. The proposed model admits an analytic solution incorporating volume conservation. Presented results illustrate the effects of volume conservation and initial surface roughness on the rigid-perfectly plastic deformation that occurs during contact processes. The results from this model are compared with existing experimental load displacement results for the deformation of a ground steel surface.

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33

Xie, Sujun, Shiliang Ouyang, Zhaojian He, Xiaoyun Wang, Ke Deng, and Heping Zhao. "Bending and splitting of spoof surface acoustic waves through structured rigid surface." Results in Physics 8 (March 2018): 52–56. http://dx.doi.org/10.1016/j.rinp.2017.11.024.

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34

FUNAKUBO, Wataru, Satoru KANEKO, and Hiroo TAURA. "Squeeze Film Characteristics Between Rotating Porous Rubber Surface and Impermeable Rigid Surface." Proceedings of Conference of Hokuriku-Shinetsu Branch 2004.41 (2004): 127–28. http://dx.doi.org/10.1299/jsmehs.2004.41.127.

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35

Wang, Xiaokun, Xiaojuan Ban, Yalan Zhang, and Xu Liu. "Rigid Body Sampling and Individual Time Stepping for Rigid-Fluid Coupling of Fluid Simulation." Scientific Programming 2017 (2017): 1–11. http://dx.doi.org/10.1155/2017/8502691.

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In this paper, we propose an efficient and simple rigid-fluid coupling scheme with scientific programming algorithms for particle-based fluid simulation and three-dimensional visualization. Our approach samples the surface of rigid bodies with boundary particles that interact with fluids. It contains two procedures, that is, surface sampling and sampling relaxation, which insures uniform distribution of particles with less iterations. Furthermore, we present a rigid-fluid coupling scheme integrating individual time stepping to rigid-fluid coupling, which gains an obvious speedup compared to previous method. The experimental results demonstrate the effectiveness of our approach.

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36

Couzijn, Erik P. A., Daniël W. F. van den Engel, J. Chris Slootweg, Frans J. J. de Kanter, Andreas W. Ehlers, Marius Schakel, and Koop Lammertsma. "Configurationally Rigid Pentaorganosilicates." Journal of the American Chemical Society 131, no. 10 (March 18, 2009): 3741–51. http://dx.doi.org/10.1021/ja809154g.

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37

HEIFETS, E., E. A. KOTOMIN, and G. BORSTEL. "ATOMISTIC CALCULATIONS OF (110) SURFACE RELAXATION FOR PEROVSKITE TITANATES." Surface Review and Letters 06, no. 06 (December 1999): 1215–19. http://dx.doi.org/10.1142/s0218625x99001360.

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Using a shell model, for the first time the (110) surface relaxations are calculated for SrTiO 3 and BaTiO 3 perovskites. The positions of atoms in 16 near-surface layers placed atop a slab of rigid ions are calculated. Strong surface rumpling and surface-induced dipole moments perpendicular to the surface are predicted for both the O-terminated and Ti-terminated surfaces.

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38

Chen, S. Y., Shin Chieh Lin, and Hong Ho Cheng. "Polishing Glass-Ceramic Based Rigid Disk." Materials Science Forum 505-507 (January 2006): 1213–18. http://dx.doi.org/10.4028/www.scientific.net/msf.505-507.1213.

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In this study, experiments were conducted to reveal effects of polishing parameters on surface characteristics and removal rate when polishing glass-ceramic based rigid disk. The parameters studied including rotational speed, applied pressure, and abrasive concentration. Experimental results show that surface roughness, waviness and removal rate could be improved by adjusting the levels of polishing parameters.

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39

Valášek, Michal, Marcin Lindner, and Marcel Mayor. "Rigid multipodal platforms for metal surfaces." Beilstein Journal of Nanotechnology 7 (March 8, 2016): 374–405. http://dx.doi.org/10.3762/bjnano.7.34.

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In this review the recent progress in molecular platforms that form rigid and well-defined contact to a metal surface are discussed. Most of the presented examples have at least three anchoring units in order to control the spatial arrangement of the protruding molecular subunit. Another interesting feature is the lateral orientation of these foot structures which, depending on the particular application, is equally important as the spatial arrangement of the molecules. The numerous approaches towards assembling and organizing functional molecules into specific architectures on metal substrates are reviewed here. Particular attention is paid to variations of both, the core structures and the anchoring groups. Furthermore, the analytical methods enabling the investigation of individual molecules as well as monomolecular layers of ordered platform structures are summarized. The presented multipodal platforms bearing several anchoring groups form considerably more stable molecule–metal contacts than corresponding monopodal analogues and exhibit an enlarged separation of the functional molecules due to the increased footprint, as well as restrict tilting of the functional termini with respect to the metal surface. These platforms are thus ideally suited to tune important properties of the molecule–metal interface. On a single-molecule level, several of these platforms enable the control over the arrangement of the protruding rod-type molecular structures (e.g., molecular wires, switches, rotors, sensors) with respect to the surface of the substrate.

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40

Jeon, Sangmin, and Steve Granick. "Rigid DNA chains near nanoparticles." Colloids and Surfaces A: Physicochemical and Engineering Aspects 238, no. 1-3 (May 2004): 109–12. http://dx.doi.org/10.1016/j.colsurfa.2004.02.027.

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41

Liu, Zhenyu, Shien Zhou, Chan Qiu, and Jianrong Tan. "Assembly variation analysis of complicated products based on rigid–flexible hybrid vector loop." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 233, no. 10 (December 4, 2018): 2099–114. http://dx.doi.org/10.1177/0954405418816851.

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The performance of mechanical products is closely related to their key feature errors. It is essential to predict the final assembly variation by assembly variation analysis to ensure product performance. Rigid–flexible hybrid construction is a common type of mechanical product. Existing methods of variation analysis in which rigid and flexible parts are calculated separately are difficult to meet the requirements of these complicated mechanical products. Another methodology is a result of linear superposition with rigid and flexible errors, which cannot reveal the quantitative relationship between product assembly variation and part manufacturing error. Therefore, a kind of complicated products’ assembly variation analysis method based on rigid–flexible vector loop is proposed in this article. First, shapes of part surfaces and sidelines are estimated according to different tolerance types. Probability density distributions of discrete feature points on the surface are calculated based on the tolerance field size with statistical methods. Second, flexible parts surface is discretized into a set of multi-segment vectors to build vector-loop model. Each vector can be orthogonally decomposed into the components representing position information and error size. Combining the multi-segment vector set of flexible part with traditional rigid part vector, a uniform vector-loop model is constructed to represent rigid and flexible complicated products. Probability density distributions of discrete feature points on part surface are regarded as inputs to calculate assembly variation values of products’ key features. Compared with the existing methods, this method applies to the assembly variation prediction of complicated products that consist of both rigid and flexible parts. Impact of each rigid and flexible part’s manufacturing error on product assembly variation can be determined, and it provides the foundation of parts tolerance optimization design. Finally, an assembly example of phased array antenna verifies effectiveness of the proposed method in this article.

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42

Dohle, Michael, and Peter Saalfrank. "Surface oscillator models for dissociative sticking of molecular hydrogen at non-rigid surfaces." Surface Science 373, no. 1 (February 1997): 95–108. http://dx.doi.org/10.1016/s0039-6028(96)01143-0.

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43

Michelin, Sébastien, Giacomo Gallino, François Gallaire, and Eric Lauga. "Viscous growth and rebound of a bubble near a rigid surface." Journal of Fluid Mechanics 860 (December 3, 2018): 172–99. http://dx.doi.org/10.1017/jfm.2018.876.

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Motivated by the dynamics of microbubbles near catalytic surfaces in bubble-powered microrockets, we consider theoretically the growth of a free spherical bubble near a flat no-slip surface in a Stokes flow. The flow at the bubble surface is characterised by a constant slip length allowing us to tune the hydrodynamic mobility of its surface and tackle in one formulation both clean and contaminated bubbles as well as rigid shells. Starting with a bubble of infinitesimal size, the fluid flow and hydrodynamic forces on the growing bubble are obtained analytically. We demonstrate that, depending on the value of the bubble slip length relative to the initial distance to the wall, the bubble will either monotonically drain the fluid separating it from the wall, which will exponentially thin, or it will bounce off the surface once before eventually draining the thin film. Clean bubbles are shown to be a singular limit which always monotonically get repelled from the surface. The bouncing events for bubbles with finite slip lengths are further analysed in detail in the lubrication limit. In particular, we identify the origin of the reversal of the hydrodynamic force direction as due to the change in the flow pattern in the film between the bubble and the surface and to the associated lubrication pressure. Last, the final drainage dynamics of the film is observed to follow a universal algebraic scaling for all finite slip lengths.

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44

Shi, Jingyu, D. L. S. McElwain, and S. A. Domanti. "Some Plastic Deformation Modes for Indentation of Half Space by a Rigid Body With Serrated Surface as a Model of Roughness Transfer in Metal Forming." Journal of Engineering Materials and Technology 124, no. 2 (March 26, 2002): 146–51. http://dx.doi.org/10.1115/1.1446864.

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This paper is concerned with the plastic deformation modes of the free surface of the half space between the teeth on the serrated surface of a rigid body. The rigid body indents the half space perpendicularly and the material of the half space is assumed to be elastic/rigid perfectly plastic. Plane-strain conditions are assumed. The emphasis in this paper is on the profile left on the surfaces of the material when the indentation proceeds to some depth and then the indenter is removed. Based on the observations from finite element results, slip line fields for the plastic deformation regions at various stages of indentation are proposed and the corresponding hodographs for the velocity field are presented. This has application in roughness transfer of final metal forming process.

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45

Ramos, Pedro Xavier, Laurent Schindfessel, João Pedro Pêgo, and Tom De Mulder. "Flat vs. curved rigid-lid LES computations of an open-channel confluence." Journal of Hydroinformatics 21, no. 2 (February 4, 2019): 318–34. http://dx.doi.org/10.2166/hydro.2019.109.

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Abstract This paper describes the application of four Large Eddy Simulations (LES) to an open-channel confluence flow, making use of a frictionless rigid-lid to treat the free-surface. Three simulations are conducted with a flat rigid-lid, at different elevations. A fourth simulation is carried out with a curved rigid-lid which is a closer approximation to the real free-surface of the flow. The curved rigid-lid is obtained from the time-averaged pressure field on the flat rigid-lid from one of the initial three simulations. The aim is to investigate the limitations of the free-surface treatment by means of a rigid-lid in the simulation of an asymmetric confluence, showing the differences that both approaches produce in terms of mean flow, secondary flow and turbulence. After validation with experimental data, the predictions are used to understand the differences between adopting a flat and a curved rigid-lid onto the confluence hydrodynamics. For the present flow case, although it was characterized by a moderately low downstream Froude number (Fr ≈ 0.37), it was found that an oversimplification of the numerical treatment of the free-surface leads to a decreased accuracy of the predictions of the secondary flow and turbulent kinetic energy.

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Tamura, Shinichi. "Surface-based and Volume-based Registration of Rigid Body." Journal of Japan Society of Computer Aided Surgery 3, no. 2 (2001): 53–61. http://dx.doi.org/10.5759/jscas1999.3.53.

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47

Cummings, D., A. N. Gent, W. Kim, and J. Padovan. "Contact of Rubber Wedges with a Flat Rigid Surface." Rubber Chemistry and Technology 65, no. 1 (March 1, 1992): 223–30. http://dx.doi.org/10.5254/1.3538602.

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Abstract Contact widths have been measured for long rubber wedges, with wedge angles ranging from 60° to 115°, pressed against a smooth, flat, rigid surface. The contact width grew rapidly at first to about 50 µm, and then more slowly, in proportion to the applied load. Thus, the mean contact pressure in the early stages of contact was small, about 5 to 10% of Young's modulus, E. It then became substantially constant at about 65% of E for a wide range of applied loads, up to about 300 N/m. Approximately the same results were obtained from FEM calculations for incompressible linearly elastic wedges with slightly rounded tips. The contact width at a given load increased slightly when the wedge was held at an angle to the vertical, up to a tilt angle of about 20°. Above this tilt angle, only one side of the wedge came into contact, and the contact width increased significantly; the mean contact pressure falling to about 0.2 E at a tilt angle of 30°.

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Gerasimov, B. P., V. A. Levin, T. I. Rozhdestvenskaya, and S. A. Semushin. "Explosion of a cylindrical charge above a rigid surface." Combustion, Explosion, and Shock Waves 27, no. 6 (1992): 770–73. http://dx.doi.org/10.1007/bf00814526.

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Myers, M. K., and J. S. Hausmann. "Computation of acoustic scattering from a moving rigid surface." Journal of the Acoustical Society of America 91, no. 5 (May 1992): 2594–605. http://dx.doi.org/10.1121/1.402996.

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Porter, Richard. "Surface wave interaction with rigid plates lying on water." Wave Motion 66 (November 2016): 118–31. http://dx.doi.org/10.1016/j.wavemoti.2016.06.008.

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