Relevant bibliographies by topics / Bending mechanics

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Bending mechanics'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "Bending mechanics"

1

Park, Jung-Whan, and Ae-Gyeong Oh. "Bending Mechanics of Ply Yarns." Textile Research Journal 73, no. 6 (June 2003): 473–79. http://dx.doi.org/10.1177/004051750307300602.

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Caputy, Gregory G., and Oleh M. Antonyshyn. "BENDING MECHANICS OF BONE GRAFTS." Journal of Craniofacial Surgery 3, no. 2 (September 1992): 80–84. http://dx.doi.org/10.1097/00001665-199209000-00006.

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Liang, Feng, Zhen Li, Xiao-Dong Yang, Wei Zhang, and Tian-Zhi Yang. "Coupled Bending–Bending–Axial–Torsional Vibrations of Rotating Blades." Acta Mechanica Solida Sinica 32, no. 3 (January 31, 2019): 326–38. http://dx.doi.org/10.1007/s10338-019-00075-w.

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Koyama, Hideo. "Bending." Journal of Japan Institute of Light Metals 58, no. 2 (February 28, 2008): 81–90. http://dx.doi.org/10.2464/jilm.58.81.

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Moshaiov, Amiram, and William S. Vorus. "The Mechanics of the Flame Bending Process: Theory and Applications." Journal of Ship Research 31, no. 04 (December 1, 1987): 269–81. http://dx.doi.org/10.5957/jsr.1987.31.4.269.

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The flame bending process can be most useful in the present effort to automate the plate bending process in shipyards. To achieve this goal, the complicated thermo-elastic-plastic behavior of the plate during the process must be understood. A review of the past analytical research efforts reveals that these attempts have been restricted to beam bending. Here a theory for the thermo-elastic-plastic plate bending is developed. Furthermore, using a boundary element method as a solution technique, the difference between the mechanics of beam bending versus plate bending is shown. Recommendations for future work are given.
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Xuesong Zhao, Guosheng Yu, Jianguo Zhu, and Xuehong De. "The Bending Mechanics Property of Salix Gordejecii." Journal of Convergence Information Technology 8, no. 8 (April 30, 2013): 1260–65. http://dx.doi.org/10.4156/jcit.vol8.issue8.148.

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He, Liwen, Jia Lou, Sritawat Kitipornchai, Jie Yang, and Jianke Du. "Peeling mechanics of hyperelastic beams: Bending effect." International Journal of Solids and Structures 167 (August 2019): 184–91. http://dx.doi.org/10.1016/j.ijsolstr.2019.03.011.

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Castéra, P., and V. Morlier. "Growth patterns and bending mechanics of branches." Trees 5, no. 4 (December 1991): 232–38. http://dx.doi.org/10.1007/bf00227530.

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Emmens, W. C., and A. H. van den Boogaard. "Cyclic stretch-bending: Mechanics, stability and formability." Journal of Materials Processing Technology 211, no. 12 (December 2011): 1965–81. http://dx.doi.org/10.1016/j.jmatprotec.2011.06.017.

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Pedley, T. J., and S. J. Hill. "Large-amplitude undulatory fish swimming: fluid mechanics coupled to internal mechanics." Journal of Experimental Biology 202, no. 23 (December 1, 1999): 3431–38. http://dx.doi.org/10.1242/jeb.202.23.3431.

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The load against which the swimming muscles contract, during the undulatory swimming of a fish, is composed principally of hydrodynamic pressure forces and body inertia. In the past this has been analysed, through an equation for bending moments, for small-amplitude swimming, using Lighthill's elongated-body theory and a ‘vortex-ring panel method’, respectively, to compute the hydrodynamic forces. Those models are outlined in this review, and a summary is given of recent work on large-amplitude swimming that has (a) extended the bending moment equation to large amplitude, which involves the introduction of a new (though probably usually small) term, and (b) developed a large-amplitude vortex-ring panel method. The latter requires computation of the wake, which rolls up into concentrated vortex rings and filaments, and has a significant effect on the pressure on the body. Application is principally made to the saithe (Pollachius virens). The calculations confirm that the wave of muscle activation travels down the fish much more rapidly than the wave of bending.
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Dissertations / Theses on the topic "Bending mechanics"

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Hua, Meng. "The mechanics of continuous roller bending of plates." Thesis, Aston University, 1986. http://publications.aston.ac.uk/11862/.

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This research initiates a study of the mechanics of four roll plate bending and provides a methodology to investigate the process experimentally. To carry out the research a suitable model bender was designed and constructed. The model bender was comprehensively instrumented with ten load cells, three torquemeters and a tachometer. A rudimentary analysis of the four roll pre-bending mode considered the three critical bending operations. The analysis also gave an assessment of the model bender capacity for the design stage. The analysis indicated that an increase in the coefficient of friction in the contact region of the pinch rolls and the plate would reduce the pinch resultant force required to end a plate to a particular bend radius. The mechanisms involved in the four roll plate bending process were investigated and a mathematical model evolved to determine the mechanics of four roll thin plate bending. A theoretical and experimental investigation was conducted for the bending of HP30 aluminium plates in both single and multipass bending modes. The study indicated that the multipass plate bending mechanics of the process varied according to the number of bending passes executed and the step decrement of the anticipated finished bend radius in any two successive passes (i.e. the bending route). Experimental results for single pass bending indicated that the rollers normally exert a higher bending load for the steady-continous bending with the pre-inactive side roll oper?tive. For the pre-bending mode and the steady-continous bending mode with the pre-active side roll operative, the former exerted the higher loads. The single pass results also indicated that the force on the side roll, the torque and power steadily increased as the anticipated bend radius decreased. Theoretical predictions for the plate internal resistance to accomplish finished bend radii of between 2500mm and 500mm for multipass bending HP30 aluminium plates, suggested that there was a certain bending route which would effectively optimise the bender capacity.
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Lazim, Duraid. "Springback in draw-bending on aerospace alloys." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=79244.

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The springback phenomenon was studied by a series of draw-bend tests. These tests were done by varying the blankholding pressure with different lubrication conditions, and with different transverse anisotropy directions. The purpose is to find the forming loads, the thickness changes and the springback angles. It has been found that the springback angle after unloading depends on the amount of blankholding pressure, the material properties, and the tool geometry. Increasing the blankholding pressure almost eliminates the springback if the tensile stress caused by the blankholding pressure reaches the yield in the material. To compliment the experiments, a theoretical model has been developed by calculating the tensile strain developed from applying the blankholding pressure. This strain then was considered in finding the total bending moment.
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Lahey, Timothy. "Modelling Hysteresis in the Bending of Fabrics." Thesis, University of Waterloo, 2002. http://hdl.handle.net/10012/941.

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This thesis presents a model of fabric bending hysteresis. The hysteresis model is designed to reproduce the fabric bending measurements taken by the Kawabata Evaluation System (KES) and the model parameters can be derived directly from these property measurements. The advantage to using this technique is that it provides the ability to simulate a continuum of property curves. Results of the model and its components are compared and constrasted with experimental results for fabrics composed of different weaves and yarn types. An attempt to incorporate the bending model as part of a fabric drape simulation is also made.
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Ridge, I. M. L. "Bending-tension fatigue of wire rope." Thesis, University of Reading, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315486.

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Corrales, Tomas P. [Verfasser]. "Local dynamics and bending mechanics of mesostructured materials / Tomas P. Corrales." Mainz : Universitätsbibliothek Mainz, 2013. http://d-nb.info/1045264318/34.

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Derian, Edward J. "Large deformation dynamic bending of composite beams." Thesis, Virginia Tech, 1985. http://hdl.handle.net/10919/45678.

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The large deformation response of composite beams subjected to a dynamic axial load was studied. The beams were loaded with a moderate amount of eccentricity to promote bending. The study was primarily experimental but some finite element results were obtained. Both the deformation and the failure of the beams were of interest. The static response of the beams was also studied in order to determine the difference between the static and dynamic failure. Twelve different laminate types were tested. The beams tested were 23 in. by 2 in. and generally 30 plies thick. The beams were loaded dynamically with a gravity-driven impactor traveling at 19.6 ft./sec. and quasi-static tests were done on identical beams in a displacement controlled manner. For laminates of practical interest, the failure modes under static and dynamic loadings were identical. Failure in most of the laminate types occurred in a single event involving 40% to 50% of the plies. However, failure in laminates with 30° or 15° off axis plies occurred in several events. All laminates exhibited bimodular properties. The compressive flexural moduli in some laminates was measured to be 1/2 the tensile flexural modulus. No simple relationship could be found among the measured ultimate failure strains of the different laminate types. Using empirically determined flexural properties, a finite element analysis was reasonably accurate in predicting the static and dynamic deformation response.


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Vandenbossche, Sacha. "Prediction of paperboard thickness and bending stiffness based on process data." Thesis, KTH, Hållfasthetslära (Avd.), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-258827.

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Bending stiness is one of the most important mechanical properties in paperboard making,giving rigidity to panels and boxes. This property is currently only possible to measure bydestructive measure o the production line. The current quality control method is decient byassuming a non-realistic consistency of the paperboard properties along the machine direction.The objective of this thesis is to predict the thickness and bending stiness of the nal boardsfrom process data.Two modelling approaches are used: the rst model calculates the bending stiness from acalculated thickness, while the other one uses the measured baseboard thickness. Both modelsuse common inputs such as material properties and grammage measurement. The grammage istaken from the online baseboard measurement. The material properties come from laboratorymeasurements and assumptions. It is assumed that the density ratio between the outer andmiddle plies is constant for all product lines, at all times. The TSI of each ply is dened fromtensile testing experiments and nominal bending stiness. It is also assumed that the coatingdoes not contribute to bending stiness. The two models use equations based on laminatetheory assuming orthotropic layers and neglecting the interlaminar shear forces. The modelsuse data of two dierent natures: i.e. laboratory data and online data. Laboratory data is usedas a comparative to evaluate the models' performance of calculated values from online data.The results show various levels of prediction accuracy for dierent paperboard grades. Theaverage thickness predictions are all underestimations within a 5% error while the bendingstiness estimations vary much more from product to product; varying from 9% underestimationto 32% overestimation. The bending stiness prediction for CD is consistently higher thanfor MD for both models. Most product lines have better results with the calculated thickness,approach 1. The calculated thickness is always underestimated and bending stiness is overestimated,hence the better results with the rst approach.The most important conclusion from the models' results is the spread of laboratory measurements,when compared to the predicted values. The large variation most likely comes fromproduction, implying inconsistencies in the manufacturing process that are not accounted forby the models. These modelling approaches have failed to capture the production variationsbecause of the lack of input parameters.
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Kuriakose, Sunil. "Analysis of damage in composite laminates under bending." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/12054.

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Olofsson, Kenneth. "Non destructive testing of paper products and tubes using transient bending waves." Licentiate thesis, Luleå tekniska universitet, 1992. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-17165.

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Amany, Aya Nicole Marie. "Characterization of shear and bending stiffness for optimizing shape and material of lightweight beams." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=112553.

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Optimized slender and short-thick beams are used in building, aircraft and machine structures to increase performance at a lower material cost. A previous work proposes an optimum shape, material and size selection model to design lightweight slender beams under pure bending. In short-thick beams, the transverse shear effects are no longer negligible and impact the choice of the optimum shape. This work extends such an optimum selection model to consider both slender and short-thick beams, by formulating the total beam stiffness design requirement as a combination of shear and bending stiffness. Selection charts are developed to show the impact of design variables, such as shape, size, material and slenderness, on the total beam stiffness. The model of total beam stiffness is validated against computational results from finite element analyses of beam models. A case study demonstrates the use of the selection charts to compare the performance of beams at the conceptual design stage.
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Books on the topic "Bending mechanics"

1

Hua, Meng. The mechanics of continuous roller bending of plates. Birmingham: Aston University. Department of Mechanical and ProductionEngineering, 1986.

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Reeder, James R. Nonlinear analysis and redesign of the mixed-mode bending delamination test. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1991.

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Chen, Qishi. Bending strength of longitudinally stiffened steel cylinders. Edmonton, Canada: Dept. of Civil Engineering, University of Alberta, 1993.

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Kramer, G. An assessment of circumferentially complex-cracked pipe subjected to bending. Washington, DC: Division of Engineering Safety, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1986.

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A mathematical analysis of bending of plates with transverse shear deformation. Harlow, Essex, England: Longman Scientific & Technical, 1990.

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Greening, John Philip. Gravity perception in fungi: Mechanics and morphometrics of gravitronic stem bending incoprinus cinereus. Manchester: University of Manchester, 1995.

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Lewicki, David G. Gear crack propagation investigations. [Washington, DC]: National Aeronautics and Space Administration, 1996.

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W, Hyer M., and United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch., eds. Large deformation dynamic bending of composite beams. [Washington, D.C.]: National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1986.

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C, Newman J., and Langley Research Center, eds. Stress-intensity factors for circumferential surface cracks in pipes and rods under tension and bending loads. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1985.

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C, Newman J., and Langley Research Center, eds. Stress-intensity factors for circumferential surface cracks in pipes and rods under tension and bending loads. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1985.

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Book chapters on the topic "Bending mechanics"

1

Cain, Jack, and Ray Hulse. "Bending Stresses." In Structural Mechanics, 163–96. London: Macmillan Education UK, 1990. http://dx.doi.org/10.1007/978-1-349-10542-7_6.

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Hulse, Ray, and Jack Cain. "Bending Stress." In Structural Mechanics, 116–38. London: Macmillan Education UK, 1991. http://dx.doi.org/10.1007/978-1-349-11897-7_5.

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Hulse, Ray, and Jack Cain. "Bending Stress." In Structural Mechanics, 163–96. London: Macmillan Education UK, 2000. http://dx.doi.org/10.1007/978-1-349-87760-7_6.

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Hulse, R., and J. A. Cain. "Bending stress." In Structural Mechanics, 116–38. London: Macmillan Education UK, 2009. http://dx.doi.org/10.1007/978-1-137-06939-9_5.

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Strømmen, Einar N. "Bending of Plates." In Structural Mechanics, 229–46. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44318-4_11.

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Barber, J. R. "Unsymmetrical Bending." In Intermediate Mechanics of Materials, 185–234. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-94-007-0295-0_4.

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Gross, Dietmar, Werner Hauger, Jörg Schröder, Wolfgang A. Wall, and Javier Bonet. "Bending of Beams." In Engineering Mechanics 2, 99–190. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-56272-7_4.

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Gross, Dietmar, Jörg Schröder, Javier Bonet, Werner Hauger, and Wolfgang A. Wall. "Bending of Beams." In Engineering Mechanics 2, 97–187. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-12886-8_4.

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Rees, D. W. A. "Bending and Shear." In Basic Solid Mechanics, 83–115. London: Macmillan Education UK, 1997. http://dx.doi.org/10.1007/978-1-349-14161-6_5.

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Ambartsumian, Sergey A. "Bending of Plates." In Foundations of Engineering Mechanics, 7–36. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71326-3_2.

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Conference papers on the topic "Bending mechanics"

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"BENDING TEST OF ARTIFICIAL FEMURS WITH INTRAMEDULLARY NAIL." In Engineering Mechanics 2019. Institute of Thermomechanics of the Czech Academy of Sciences, Prague, 2019. http://dx.doi.org/10.21495/71-0-243.

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"Four point bending tests of double laminated glass panels." In Engineering Mechanics 2018. Institute of Theoretical and Applied Mechanics of the Czech Academy of Sciences, 2018. http://dx.doi.org/10.21495/91-8-285.

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Liu, Bing-Qian, Yong-Chen, Chao Xie, and Lei Shi. "Inventor-based simulation analysis for NC tube bending process." In The 2015 International Conference on Mechanics and Mechanical Engineering (MME 2015). WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789813145603_0045.

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Álvarez, Morán J., S. Seitl, and P. Miarka. "NUMERICAL STUDY OF UNIVERSAL BEAM (I SECTION) UNDER BENDING LOAD WITH CRACK." In Engineering Mechanics 2020. Institute of Thermomechanics of the Czech Academy of Sciences, Prague, 2020. http://dx.doi.org/10.21495/5896-3-054.

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de Souza, Jose´ R., and Roberto Ramos. "Bending Stiffeners: A Parametric Structural Analysis." In ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/omae2008-57202.

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The bending stiffeners discussed in this paper are ancillary structural components installed on flexible lines at their connections with floating units in offshore oil production systems. The configuration of these accessories must provide the installation with a gradual variation of the bending stiffness near the line’s attaching point, smoothing the curvature and avoiding that the structural bending limit of the flexible line be exceeded, and thus reducing the stress field of the compliant structure therein fixed. Generally modeled as having a simple conical shape, in practice, however, bending stiffeners geometries are not so simple. Indeed, units consisting of four different sections are common. This paper presents a parametric structural analysis of these components by means of an analytically formulated model, which results in a second order non-linear differential equation with variable coefficients. The ensuing mathematical boundary value problem is solved numerically with a code developed in Matlab®, using an internal program based on a collocation method — as opposed to a shooting method. Bending stiffener design and normative issues are also briefly discussed. Finally, solutions obtained previously both analytically and by finite element discretizations are used to validate the analytical solutions obtained herein.
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Torselletti, Enrico, Luigino Vitali, and Roberto Bruschi. "Bending Capacity of Girth-Welded Pipes." In ASME 2005 24th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2005. http://dx.doi.org/10.1115/omae2005-67487.

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In the last ten years, several studies were completed with the aim to define a design format for the local buckling of pipes subjected to differential pressure, axial load and bending moment. Experimental tests were carried out and simplified analytical solutions were developed in order to predict the pipe bending moment capacity and the associated level of deformation. Standard finite element (FE) structural codes, such as ABAQUS, ADINA, ANSYS, etc., were and are used as a “numerical testing laboratory”, where the model is suitably calibrated to few experimental tests. The outcomes of these research efforts were implemented in the design equations enclosed in international design rules, as DNV OS-F101. The local buckling design formats, included in these rules, give the limit bending moment and associated longitudinal strain as a function of the relevant parameters. The effect of the girth weld is introduced with a reduction factor only for what regards the strain at limit bending moment. This paper addresses the effects of the presence of the girth weld on both limit bending moment and corresponding compressive longitudinal strain. A 3-dimensional (3D) FE model developed in ABAQUS has been developed to perform a parametric analysis. The FE model results are shown to compare reasonably well with full scale experiments performed for on-shore pipelines. The limit bending moment is reduced by the weld misalignment and this reduction is also dependent on both internal pressure load and linepipe material mechanical strength. The FE results are compared with the limit bending moment calculated with DNV OS-F101.
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Wang, Dan, and Jie Gu. "Experimental study on flow characteristics in bending channel." In 2016 International Conference on Mechanics and Architectural Design. WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789813149021_0005.

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"FOUR-POINT BENDING TESTS OF DOUBLE LAMINATED GLASS PANELS WITH EVA INTERLAYER IN VARIOUS LOADING RATES." In Engineering Mechanics 2019. Institute of Thermomechanics of the Czech Academy of Sciences, Prague, 2019. http://dx.doi.org/10.21495/71-0-145.

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Demanze, Fre´de´ric, Didier Hanonge, Alain Chalumeau, and Olivier Leclerc. "Fatigue Life Analysis of Polyurethane Bending Stiffeners." In ASME 2005 24th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2005. http://dx.doi.org/10.1115/omae2005-67506.

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Following some experiences of bending stiffeners fatigue failures during full scale tests performed at Flexi France on flexible pipe and stiffener assemblies, Technip decided to launch in 1999 a major research program on fatigue life analysis of bending stiffeners made of Polyurethane material. This fatigue life assessment is now systematically performed by Technip for all new design of flexible riser bending stiffeners. This totally innovative method comprises a number of features as follows: Firstly fatigue behaviour of polyurethane material is described. The theoretical background, based on effective strain intensity factor, is detailed, together with experimental results on laboratory notched samples, solicited under strain control for various strain ratios, to obtain fatigue data. These fatigue data are well fitted by a power law defining the total number of cycles at break as a function of the effective strain intensity factor. The notion of fatigue threshold, below which no propagation is observed, is also demonstrated. Secondly the design used by Technip for its bending stiffeners, and most of all the critical areas regarding fatigue for these massive polyurethane structures are presented. Thirdly the methodology for fatigue life assessment of bending stiffeners in the critical areas defined above is discussed. Calibration of the strain calculation principle is presented versus finite element analysis. Based on all fatigue test results, the size of the equivalent notch to be considered at design stage, in the same critical areas, is discussed. Finally, a comprehensive calibration of the methodology according to full and middle scale test results is presented. The present paper is therefore a step forward in the knowledge of fatigue behaviour of massive polyurethane bending stiffener structures, which are critical items for flexible risers integrity, and widely used in the offshore industry. The confidence in bending stiffeners reliability is greatly enhanced by the introduction of this innovative methodology developed by Technip.
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Derbanne, Quentin, Jean-Franc¸ois Leguen, Thierry Dupau, and Etienne Hamel. "Long-Term Non-Linear Bending Moment Prediction." In ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/omae2008-57326.

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Long-term analysis is more and more used to establish the design loads by performing direct loads evaluation. The long-term distribution of wave loads acting on a ship depends on the short-term contributions of the response in all the wave conditions the ship encounters in her life: sea state, relative heading, speed, load case... For each short-term condition the statistical parameters that describe the response are considered to be constant. Therefore a long-term analysis needs a correct evaluation of the short-term parameters that characterise the short-term response. The Weibull distribution is often used to model the extreme response on a given sea state. The precision of the long-term analysis depends directly on the precision of the Weibull parameters. The first part of this paper is a study of the influence of the simulations parameters (number of wave components, simulation time) and of the different methods used to fit a Weibull distribution on the bending moment extremes, on the precision of the Weibull parameters and on the extreme values. Every choice of parameter used for the final calculations will be justified. The conclusion is that by using a correct fitting method, and provided that there are at least 128 wave components, the overall precision is only dependent on the simulation time: the precision on the 10−5 extreme value is only ±6.4% with 400 extremes, and ±1.9% with 3200 extremes! In order to increase the precision of the evaluation of the Weibull parameters over the entire scatter diagram, without increasing the simulation time, a smoothing method is proposed, based on a polynomial smoothing of the A1/3 and A1/10 values obtained from linear and non linear calculations on the same wave signal, and on the method of moments. This method leads to an increase of precision of about 3 times, that is equivalent to increase the simulation time by 8 or 9! The second part of this paper presents the results of the long-term analysis carried out on 14 ships (ferries, container vessel, naval ships,...), using a non-linear sea-keeping time-domain software. Calculations have been done without forward speed in head waves and for all the sea states of the IACS scatter diagram (more than 200 sea states). The smoothing method has been used to compute all the Weibull coefficients. Results show that it is possible to model the non-linear effects by applying a non-linear coefficient on the linear bending moment for one speed, one scatter diagram and one extreme value probability. But this coefficient can’t be applied, and must be recalculated, if other cases are needed (other speed, other scatter diagram, relative heading distribution or other extreme value probabilities). Every ships will be compared in the same graph in order to evaluated the influence of the design hull form (as overall length and bow flare) on the non linear long term bending moments value (in hogging and in sagging). The calculations were focused on the case of a particular frigate where more parameters were studied as forward speed, operational profile (in speed and relative headings) and scatter diagram choice. In the third part results from model test performed on a height segmented model of the frigate will be compared to the short term results computed by the sea-keeping software. This frigate has been monitored for three years, and the strain measurements at sea will be compared to the numerical long-term analysis.
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Reports on the topic "Bending mechanics"

1

Patel, Reena. Complex network analysis for early detection of failure mechanisms in resilient bio-structures. Engineer Research and Development Center (U.S.), June 2021. http://dx.doi.org/10.21079/11681/41042.

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Bio-structures owe their remarkable mechanical properties to their hierarchical geometrical arrangement as well as heterogeneous material properties. This dissertation presents an integrated, interdisciplinary approach that employs computational mechanics combined with flow network analysis to gain fundamental insights into the failure mechanisms of high performance, light-weight, structured composites by examining the stress flow patterns formed in the nascent stages of loading for the rostrum of the paddlefish. The data required for the flow network analysis was generated from the finite element analysis of the rostrum. The flow network was weighted based on the parameter of interest, which is stress in the current study. The changing kinematics of the structural system was provided as input to the algorithm that computes the minimum-cut of the flow network. The proposed approach was verified using two classical problems three- and four-point bending of a simply-supported concrete beam. The current study also addresses the methodology used to prepare data in an appropriate format for a seamless transition from finite element binary database files to the abstract mathematical domain needed for the network flow analysis. A robust, platform-independent procedure was developed that efficiently handles the large datasets produced by the finite element simulations. Results from computational mechanics using Abaqus and complex network analysis are presented.
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2

Kopfer, G. Study of the temperature dependence of the mechanical characteristics of the steels GX 5 CrNi 13 4 and GGG 40 in tensile and bending tests. Office of Scientific and Technical Information (OSTI), January 1987. http://dx.doi.org/10.2172/7769229.

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