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Journal articles on the topic 'Bending Moment Prediction'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

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1

Chaudhary, Sandeep, Umesh Pendharkar, and Ashok Kumar Nagpal. "Bending Moment Prediction for Continuous Composite Beams by Neural Networks." Advances in Structural Engineering 10, no. 4 (2007): 439–54. http://dx.doi.org/10.1260/136943307783239390.

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A methodology has been developed for the continuous composite beams to predict the inelastic bending moments (considering the cracking of concrete) from the elastic moments (neglecting the cracking) by using the neural networks. The proposed neural network models predict the inelastic moment ratios (ratio of inelastic moment to elastic moment) at the supports of a span. Nine significant structural parameters have been identified governing the inelastic moment ratios. Six neural networks have been presented to cover the entire practical range of the beams. The proposed neural networks have been

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2

Sulisetyono, Aries, and Teguh Putranto. "Wave Load Analysis of the Corvette Ship in the Sea Water of Indonesia." Applied Mechanics and Materials 862 (January 2017): 291–95. http://dx.doi.org/10.4028/www.scientific.net/amm.862.291.

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Wave load prediction of ship should be considered in the design stage of ship’s construction. The excessive of wave load might cause a structural failure of ship during operational in seaway. The bending moment might be experienced on the ship structure that it contributes to stress concentration on the particular part of construction. This paper describes the prediction of bending moment and shear forces of the warship corvette type considered to the sea condition of Indonesia. The 3D diffraction theory was adopted to analyze ship’s motion responses, bending moments, and shear forces numerica

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3

Yi, H. K., D. W. Kim, C. J. Van Tyne, and Y. H. Moon. "Analytical prediction of springback based on residual differential strain during sheet metal bending." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 222, no. 2 (2008): 117–29. http://dx.doi.org/10.1243/09544062jmes682.

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As the springback of sheet metal during unloading may cause deviation from a desired shape, accurately predicting springback is essential for the design of sheet stamping operations. Finite-element models have not been successful in predicting springback; hence there is a need for analytical models to make such predictions. In this study, a model based on differential strains after relief from the maximum bending stress is derived for six different deformation patterns in order to predict springback analytically. The springback for each deformation pattern is estimated by the residual differen

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4

Ren, Sheng Le, Yi Nan Lai, Guang Fei Wu, Jun Tao Gu, and Zeng Lou Li. "Intelligent Prediction of Process Parameters for Cold Bending." Advanced Materials Research 154-155 (October 2010): 74–78. http://dx.doi.org/10.4028/www.scientific.net/amr.154-155.74.

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The choice of the process parameters in the conventional tube bending forming is often based on experience. The method of constantly testing to adjust has seriously affected the production efficiency and increased production costs. In this paper, an intelligent prediction model of the tube bending forming process parameters for utility boiler was set up based on neural network, which has been used to predict the main process parameters including the bending moment and boost power. In the intelligent prediction model, the analytical calculations, numerical simulation and experimental data are s

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5

Kut, Stanisław, Feliks Stachowicz, and Grzegorz Pasowicz. "Springback Prediction for Pure Moment Bending of Aluminum Alloy Square Tube." Materials 14, no. 14 (2021): 3814. http://dx.doi.org/10.3390/ma14143814.

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The springback phenomenon occurring during cold forming is the main problem affecting the dimensional accuracy of bent products, especially when bending thin-walled profiles, where there are significant changes in the cross-section geometry. This article presents the results of the analysis of the springback phenomenon occurring during shaping with a pure bending moment of square tubes with the cross-sectional dimensions of 21.5 × 21.5 × 1.8 mm and 25 × 25 × 2.5 mm made of aluminum alloy 6060. The springback characteristics were determined by defining the dependence of the springback coefficie

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6

Li, Yinsheng, Kunio Hasegawa, and Masayoshi Shimomoto. "ICONE19-43138 Prediction of Failure Bending Moment for a Pipe Containing Multiple Circumferential Cracks with Complex Shapes." Proceedings of the International Conference on Nuclear Engineering (ICONE) 2011.19 (2011): _ICONE1943. http://dx.doi.org/10.1299/jsmeicone.2011.19._icone1943_45.

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7

Kinawy, Moustafa, Richard Butler, and Giles W. Hunt. "Bending strength of delaminated aerospace composites." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 370, no. 1965 (2012): 1780–97. http://dx.doi.org/10.1098/rsta.2011.0337.

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Buckling-driven delamination is considered among the most critical failure modes in composite laminates. This paper examines the propagation of delaminations in a beam under pure bending. A pre-developed analytical model to predict the critical buckling moment of a thin sub-laminate is extended to account for propagation prediction, using mixed-mode fracture analysis. Fractography analysis is performed to distinguish between mode I and mode II contributions to the final failure of specimens. Comparison between experimental results and analysis shows agreement to within 5 per cent in static pro

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8

Liao, Caicai, Kezhong Shi, and XiaoLu Zhao. "Predicting the Extreme Loads in Power Production of Large Wind Turbines Using an Improved PSO Algorithm." Applied Sciences 9, no. 3 (2019): 521. http://dx.doi.org/10.3390/app9030521.

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Predicting the extreme loads in power production for the preliminary-design of large-scale wind turbine blade is both important and time consuming. In this paper, a simplified method, called Particle Swarm Optimization-Extreme Load Prediction Model (PSO-ELPM), is developed to quickly assess the extreme loads. This method considers the extreme loads solution as an optimal problem. The rotor speed, wind speed, pitch angle, yaw angle, and azimuth angle are selected as design variables. The constraint conditions are obtained by considering the influence of the aeroelastic property and control syst

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9

Wang, Zhi Yu, and Qing Yuan Wang. "Mechanical Model Study of a Bolted Endplate Minor Axis Joint." Advanced Materials Research 163-167 (December 2010): 726–29. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.726.

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An analysis of a bolted endplate minor axis joint that is subjected to bending is presented in this paper. The methodology for predicting the moment-rotation relationship of such joint is based on the component method and appropriate mathematical expressions. The component of column web in bending is of special concern, by using yield line analysis and plate theory, for calculation of the resistance and the stiffness respectively. A case study is reported in this work to validate the proposed mechanical model. The result is found to be satisfactory for the prediction of moment-rotation relatio

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10

MASUDA, Kenichi, and Dai-heng CHEN. "Prediction of Maximum Moment of Rectangular Tubes Subjected to Pure Bending." TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 76, no. 761 (2010): 26–33. http://dx.doi.org/10.1299/kikaia.76.26.

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11

Sawaguchi, Masatoshi. "Prediction of Bending Moment of a Batter Pile in Subsiding Ground." Soils and Foundations 29, no. 4 (1989): 120–26. http://dx.doi.org/10.3208/sandf1972.29.4_120.

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12

MASUDA, Kenichi, and Dai-Heng CHEN. "Prediction of Maximum Moment of Rectangular Tubes Subjected to Pure Bending." Journal of Environment and Engineering 6, no. 3 (2011): 554–66. http://dx.doi.org/10.1299/jee.6.554.

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13

MASUDA, KENICHI, DAI-HENG CHEN, SHINGO OZAKI, and KUNIHARU USHIJIMA. "PREDICTION OF MAXIMUM MOMENT OF CIRCULAR TUBES SUBJECTED TO PURE BENDING IN CONSIDERATION OF THE LENGTH EFFECT." International Journal of Modern Physics B 22, no. 09n11 (2008): 1724–29. http://dx.doi.org/10.1142/s0217979208047328.

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In the present study, the bending collapse of an elastoplastic cylindrical tube subjected to static pure bending is investigated using the finite element method (FEM). The moment of the elastoplastic cylindrical tube is controlled by the flattening rate of the tube cross-section. For a long tube, the flattening rate can be expressed in terms of the axial and circumferential stresses that, in turn, depend on the material and geometrical properties and the curvature of the tube. On the other hand, for a short tube, the boundary condition of the fixed walls prevents the flattening rate. In order

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14

Pedersen, P. T., and J. J. Jensen. "Estimation of hull girder vertical bending moments including non-linear and flexibility effects using closed form expressions." Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 223, no. 3 (2009): 377–90. http://dx.doi.org/10.1243/14750902jeme143.

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A simple but rational procedure for prediction of extreme wave-induced hull girder bending moment in slender mono-hull displacement vessels is presented. The procedure takes into account main ship hull characteristics such as length, breadth, draught, block coefficient, bow flare coefficient, forward speed, and hull flexibility. The wave-induced loads are evaluated for specific operational profiles. Non-linearity in the wave bending moment is modelled using results derived from a second-order strip theory and water entry solutions for wedge-type sections. Hence, bow flare slamming is accounted

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15

Petranović, Tamara, Antonio Mikulić, Marko Katalinić, Maro Ćorak, and Joško Parunov. "Method for Prediction of Extreme Wave Loads Based on Ship Operability Analysis Using Hindcast Wave Database." Journal of Marine Science and Engineering 9, no. 9 (2021): 1002. http://dx.doi.org/10.3390/jmse9091002.

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The method for the prediction of extreme vertical wave bending moments on a passenger ship based on the hindcast database along the shipping route is presented. Operability analysis is performed to identify sea states when the ship is not able to normally operate and which are likely to be avoided. Closed-form expressions are used for the calculation of transfer functions of ship motions and loads. Multiple operability criteria are used and compared to the corresponding limiting values. The most probable extreme wave bending moments for the short-term sea states at discrete locations along the

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16

Guedes Soares, C., Nuno Fonseca, Ricardo Pascoal, Guenther F. Clauss, Christian E. Schmittner, and Janou Hennig. "Analysis of Design Wave Loads on an FPSO Accounting for Abnormal Waves." Journal of Offshore Mechanics and Arctic Engineering 128, no. 3 (2005): 241–47. http://dx.doi.org/10.1115/1.2166656.

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The paper presents an analysis of structural design wave loads on an FPSO. The vertical bending moment at midship induced by rogue waves are compared with rule values. The loads induced by deterministic rogue waves were both measured in a seakeeping tank and calculated by an advanced time domain method. Two procedures are used to calculate the expected extreme vertical bending moment during the operational lifetime of the ship. The first one relies on a standard linear long term prediction method, which results from the summation of short term distribution of maxima weighted by their probabili

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17

Xingxing, Wang, Ye Jihong, and Wang Wei. "Experimental investigation on the structural performance of a reinforced cold-formed steel beam–column joint." Canadian Journal of Civil Engineering 45, no. 12 (2018): 1027–39. http://dx.doi.org/10.1139/cjce-2018-0046.

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A reinforced beam–column joint specific to mid-rise cold-formed steel (CFS) dwellings was proposed and studied by six full-scale cyclic loading tests. Afterwards, a moment–rotation relationship prediction model and a numerical model of the joint were established. The results show that: (i) the joint has a certain bending moment transmission capacity; (ii) the joint’s moment–rotation curve has distinctive three-stage deformation characteristics, including elastic, nonlinear, and failure stages successively; the structural performance of the joint is better and more in line with the requirements

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18

Park, M. S., and B. C. Lee. "Prediction of Mode Parameters and Moment-Rotation Curves for Crushed Thin-Walled Trapezoidal Tubes in Bending." Journal of Applied Mechanics 63, no. 2 (1996): 453–59. http://dx.doi.org/10.1115/1.2788889.

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In the context of kinematic models, a general procedure for the bending crush analysis of thin-walled members is proposed and applied to the trapezoidal and rectangular tubes in bending. The main emphasis of this study is given to the determination of collapse mode parameters and the prediction of post-collapse behaviors of the structural member. The mode shapes are determined by minimizing plastic energy rate of the members. Moment-rotation curves are obtained by differentiating the absorbed plastic energy with respect to the rotation angle. For small rotation angles the solution is modified

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19

Yakel, Aaron J., and Atorod Azizinamini. "Improved Moment Strength Prediction of Composite Steel Plate Girders in Positive Bending." Journal of Bridge Engineering 10, no. 1 (2005): 28–38. http://dx.doi.org/10.1061/(asce)1084-0702(2005)10:1(28).

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20

Bao, Ke, Qiu Fang Wang, Shu Lin Liu, and Zhong Liang Wei. "Study on Local Strain Field Intensity Approach for Prediction Fatigue Life of Crankshaft Based on Mechanical Mechanics." Advanced Materials Research 644 (January 2013): 251–55. http://dx.doi.org/10.4028/www.scientific.net/amr.644.251.

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The bending fatigue limit moment and crack initiation life of 4105 crankishaft in five groups of bending moments are obtained by resonant bending fatigue tests first. Then, the static finite element calculation using sub-model is performed to get the strain distributions in every test load. The results show that in the region where stress concentrate, the strain field could be seen as plane strain state. So two dimensional strain field intensity model is selected. In order to remove the influences of size and surface conditions, the radius of strain field is determined with the strain distribu

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21

Sulisetyono, Aries, and Muammar Kadhafi. "Fatigue Life Prediction for Warship Operation in Indonesian Water." Applied Mechanics and Materials 874 (January 2018): 140–46. http://dx.doi.org/10.4028/www.scientific.net/amm.874.140.

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The fatigue life of a corvette ship structural detail was predicted by using a spectral fatique analysis. The fluctuated wave load act to the ship’s structure in regular wave was estimated by using Diffraction Theory. The stress spectrum was defined using analytical approach consider to the design constructions of ship. The operational routes of a corvette ship were determined in Indonesian water condition for a year period of ship’s mission. The sea condition was ilustrated in term of wave spectrum which was developed using the ITTC formula. The spectral response of stress bending moment was

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22

Lee, Chang-Hwan, Iman Mansouri, Jaehoon Bae, and Jaeho Ryu. "Current and New Approaches to Predict the Deflections of One-Way Flexural Members with a Focus on Composite Steel Deck Slabs Voided by Circular Tubes." Materials 14, no. 2 (2021): 421. http://dx.doi.org/10.3390/ma14020421.

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A new type of composite voided slab, the TUBEDECK (TD), which utilizes the structural function of profiled steel decks, has recently been proposed. Previous studies have confirmed that the flexural strength of TD slabs can be calculated based on the full composite contribution of the steel deck, but for long-span flexural members, the deflection serviceability requirement is often dominant. Herein, we derived a novel deflection prediction approach using the results of flexural tests on slab specimens, focusing on TD slabs. First, deflection prediction based on modifications of the current code

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23

Waskito, Kurniawan T., Masashi Kashiwagi, Hidetsugu Iwashita, and Munehiko Hinatsu. "Prediction of nonlinear vertical bending moment using measured pressure distribution on ship hull." Applied Ocean Research 101 (August 2020): 102261. http://dx.doi.org/10.1016/j.apor.2020.102261.

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24

Okabe, Minoru, Motoi Yasumura, Kenji Kobayashi, and Kazuhiko Fujita. "Prediction of bending stiffness and moment carrying capacity of sugi cross-laminated timber." Journal of Wood Science 60, no. 1 (2013): 49–58. http://dx.doi.org/10.1007/s10086-013-1377-8.

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25

Ebrahimpour Komleh, Houman, and Ali Akbar Maghsoudi. "Analytical Assessment of Bending Ductility in FRP Strengthened RHSC Beams." Civil Engineering Journal 4, no. 11 (2018): 2719. http://dx.doi.org/10.28991/cej-03091194.

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Over the past few years, a wide use of externally-bonded fiber-reinforced polymer composites (EB-FRP), for rehabilitation, strengthening and repair of existing/deteriorated reinforced/prestressed-concrete (RC/PC) structures has been observed. This paper presents a nonlinear iterative analytical approach conducted to investigate the effects of concrete strength, steel-reinforcement ratio and externally-reinforcement (FRP) stiffness on the flexural behavior and the curvature ductility index of the FRP-strengthened reinforced high-strength concrete (RHSC) beams. Analysis results using the propose

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26

Guo, Mei Ling, Xin Yun Wang, Jian Cheng Luo, and Ju Chen Xia. "Springback Prediction of Axial Symmetry Sheet Part Drawing." Advanced Materials Research 97-101 (March 2010): 264–67. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.264.

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Springback in drawing of an axial symmetry sheet metal part was studied. First of all, according to a springback formula of simple bending, the moment was modified by concerning of axial symmetry shape of part to construct a formula for predicting the springback. Then, springback process was analyzed with FE software Dynaform. Finally, drawing experiment was carried out. Use the reverse engineering and software Geomagic to obtain the shape and springback of the part. Excluding errors of measurement and simulation, the results of experiment and finite element simulation and predictive model wer

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27

Hosny, Abdelhadi, Ezzeldin Yazeed Sayed-Ahmed, Amr Ali Abdelrahman, and Naser Ahmed Alhlaby. "Strengthening precast-prestressed hollow core slabs to resist negative moments using carbon fibre reinforced polymer strips: an experimental investigation and a critical review of Canadian Standards Association S806-02." Canadian Journal of Civil Engineering 33, no. 8 (2006): 955–67. http://dx.doi.org/10.1139/l06-040.

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Behaviour of precast-prestressed hollow core slabs has been extensively studied when these slabs are subjected to positive bending moments, a practical application typical of hollow core slabs. However, in many projects it may be required to have an overhanging part of the roof to act as a cantilever. In doing so, and using precast-prestressed hollow core slabs, the slabs would be subjected to negative moments, atypical for hollow core slabs. In this paper, the behaviour of precast-prestressed hollow core slabs is experimentally investigated when they are subjected to negative bending moments.

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28

Răcășan, Sergiu, Bogdan Bedelean, Sergiu Georgescu, and Anca Maria Varodi. "Comparison between artificial neural networks and response surface methodology to predict the bending moment capacity of heat-treated wood dowel joints." BioResources 15, no. 3 (2020): 5764–75. http://dx.doi.org/10.15376/biores.15.3.5764-5775.

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The bending moment capacity of heat-treated wood dowel joints loaded in compression or tension was predicted via two artificial neural network (ANN) models. Additionally, a comparative study between similar models that were developed through response surface methodology (RSM) was performed. The joints were made of heat-treated ash (Fraxinus excelsior). The values of the ultimate failure load and the moment arms were recorded for each run via a universal testing machine. To develop the ANN models, the experimental data were randomly divided into three subsets, which were needed for the training

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29

Ahmadi, Isa. "Free edge stress prediction in thick laminated cylindrical shell panel subjected to bending moment." Applied Mathematical Modelling 65 (January 2019): 507–25. http://dx.doi.org/10.1016/j.apm.2018.08.029.

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30

Prini, Federico, Simon Benson, Robert S. Dow, Holly J. Phillips, Peter J. Sheppard, and Richard W. Birmingham. "Model scale prediction of seakeeping and global bending moment on a high speed craft." Engineering Structures 231 (March 2021): 111738. http://dx.doi.org/10.1016/j.engstruct.2020.111738.

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31

Xue, Jilin, and Changyu Zhou. "Finite Element Creep Damage Analyses and Life Prediction of P91 Pipe Containing Local Wall Thinning Defect." High Temperature Materials and Processes 35, no. 3 (2016): 283–95. http://dx.doi.org/10.1515/htmp-2014-0141.

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AbstractCreep continuum damage finite element (FE) analyses were performed for P91 steel pipe containing local wall thinning (LWT) defect subjected to monotonic internal pressure, monotonic bending moment and combined internal pressure and bending moment by orthogonal experimental design method. The creep damage lives of pipe containing LWT defect under different load conditions were obtained. Then, the creep damage life formulas were regressed based on the creep damage life results from FE method. At the same time a skeletal point rupture stress was found and used for life prediction which wa

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32

Wang, Ling, and Pu Rong Jia. "Study on Bauschinger Effect in X80 Steel under Axial Loading and Bending." Advanced Materials Research 197-198 (February 2011): 1686–89. http://dx.doi.org/10.4028/www.scientific.net/amr.197-198.1686.

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The Bauschinger effect (BE) of X80 Pipeline Steel was tested through axial tension and compression loading. Forward and reverse axial loading schemes were performed to investigate the influence of deformation history on the mechanical character. The curves of forward and reverse stress-strain were both recorded. The results show that the yield strength decreases as the pre-plastic strain increases. On the basis of the experimental data, an empirical formula was derived regarding the decrement of the yield strength as a function of the pre-plastic strain. Additionally, further investigations on

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33

Chikho, Abdul H., and Patrick A. Kirby. "An approximate method for estimation of bending moments in continuous and semirigid frames." Canadian Journal of Civil Engineering 22, no. 6 (1995): 1120–32. http://dx.doi.org/10.1139/l95-130.

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A simple hand method of estimating member bending moments in flexibly connected multistorey frames is presented in this paper. The method allows for semirigid joint action and can be used in conjuction with any of the current rigid methods of frame design. The load factor at elastic instability of flexibly connected frames can be obtained by the proposed method. Also, a procedure for calculating a linearized approximation of the joint stiffnesses in a multistorey frame subjected to vertical and horizontal loads accounting for the nonlinearity of the joint's moment–rotation characteristic is in

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34

Viswanathan, A., V. A. Subramanian, and D. Kumar. "Location-based fatigue damage assessment on an FPSO by the spectral analysis method." MATEC Web of Conferences 272 (2019): 01019. http://dx.doi.org/10.1051/matecconf/201927201019.

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Floating production storage and offloading ships (FPSOs) are offshore platforms positioned at a location and operating at different loading conditions and corresponding draughts. Due to their static location, they get subjected to continuous fluctuating loads due to the sea environment. For these reasons the fatigue damage prediction of an FPSO is essential. The emphasis of this study is on the effect of fatigue damage at critical joints of critical structural members under the influence of vertical and horizontal bending in isolation and combination. The method considers an FPSO of 320m lengt

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35

Adey, B. T., G. Y. Grondin, and J. JR Cheng. "Cyclic loading of end plate moment connections." Canadian Journal of Civil Engineering 27, no. 4 (2000): 683–701. http://dx.doi.org/10.1139/l99-080.

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An experimental investigation of 15 cyclically loaded extended end plate connections was undertaken to assess the significance of some design parameters. The parameters investigated were beam size, bolt layout, end plate thickness, use of extension stiffeners, welding process, and weld preparation. Eleven of the 15 full-scale test specimens were designed to confine failure to the end plate and four were designed to develop the plastic moment capacity of the beam. Of the beam sizes tested (W360×51, W460×97, and W610×125) the W460×97 beam connections provided the most ductility. The relaxed bolt

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36

Thamrin, Rendy, Zaidir Zaidir, and Silvy Desharma. "Debonding Failure Analysis of Reinforced Concrete Beams Strengthened with CFRP Plates." Polymers 13, no. 16 (2021): 2738. http://dx.doi.org/10.3390/polym13162738.

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In this study, experimental work was carried out on reinforced concrete (RC) beams strengthened with carbon fiber reinforced polymers (CFRP) plates. This study aims to examine the effect of the reinforcement ratio on the flexural behavior of these beams and propose a new model for predicting the debonding moment. Six RC beams consisting of three control beams and three beams strengthened with CFRP plates were tested. The beams were simply supported and loaded with four-point bending. The test variable was the tensile reinforcement ratio (1%, 1.5%, and 2.5%). Analytical prediction using the fib

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37

Pan, K., and K. A. Stelson. "On the Plastic Deformation of a Tube During Bending." Journal of Engineering for Industry 117, no. 4 (1995): 494–500. http://dx.doi.org/10.1115/1.2803526.

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The objective of this study is to develop an analytical approach to calculate the relationship between the axial curvature of a bent tube and the resulting deformation of the cross-section. The model accounts for both geometrical and material nonlinearities. An approximate expression in trigonometric form is introduced for the displacement field, which reflects the change of wall thickness and neutral axis shift during bending. The total deformation theory is employed as a constitutive relation. The solution is found using a minimization approach and the energy principle. A better approach for

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38

Jin, Lu, Yin-Fei Yang, Ren-Zheng Li, Ya-Wen Cui, Muhammad Jamil, and Liang Li. "Study on Springback Straightening after Bending of the U-Section of TC4 Material under High-Temperature Conditions." Materials 13, no. 8 (2020): 1895. http://dx.doi.org/10.3390/ma13081895.

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The thin-walled structures of titanium alloys have peculiar characteristics involving thin curved surfaces, complicated structures, and a poor rigidity. Therefore, bending or twisting distortion frequently occurs in forging, extrusion, drawing, transportation, cooling, and manufacturing. Straightening theory focuses on the straightening curvature or bending moment at room temperature, and a unified analytical model of the straightening curvature, the straightening bending moment, and the straightening stroke, as well as a study on springback straightening under high-temperature conditions, hav

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39

Zhao, Kai, Yu Huai He, and Xin Ling Liu. "Multiaxial Fatigue Life Prediction of 50CrVA Spring Steel under Proportional Loading." Advanced Materials Research 887-888 (February 2014): 270–75. http://dx.doi.org/10.4028/www.scientific.net/amr.887-888.270.

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Multiaxial fatigue life of 50CrVA spring steel standard specimens and eccentric specimens under proportional loading was studied with MTS 809 tension-torsion electro-hydraulic servo tester. Both kinds of specimens were calculated by the finite element software ABAQUS and the fatigue life of specimens were predicted based on the finite element results. The results show that the additional bending moment will obviously reduce the life of specimens; only the Manson-Halford model and modified Manson-Halford model can obtain satisfactory results in many prediction models selected.

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40

Liu, Feng, Yuchao Yang, and Yuelei Wu. "The Characteristic Transient Response of a Pressurized Cantilever Pipe Subjected to Transverse Impact at Its Tip." Shock and Vibration 2019 (May 22, 2019): 1–15. http://dx.doi.org/10.1155/2019/4030379.

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This paper describes an experimental study on the pure bending mechanical behavior of a pressurized pipe and adoption of a measured moment-curvature relationship under different working conditions in numerical simulations for transient pipe-whip prediction. To describe the effects of pipe contents and internal pressure, the governing equations were derived based on large deformation theory. Bending moment and axial force were uncoupled in the constitutive equation, and an experiment-based relationship between moment and curvature was adopted. The numerical simulations show that the present mod

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41

Sherif, Alaa G., and Walter H. Dilger. "Critical review of CSA A23.3-94 deflection prediction for normal and high strength concrete beams." Canadian Journal of Civil Engineering 25, no. 3 (1998): 474–89. http://dx.doi.org/10.1139/l97-106.

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The purpose of this paper is to critically review the provisions of CSA A23.3-94 for the deflection calculations of normal and high strength reinforced concrete beams. Comparison is made with the provisions of CEB-FIP MC 90 and EC 2 which is similar to the MC 90. Both short- and long-term deflections are discussed. Tests from the literature are used to assess the calculation methods suggested by the codes. These methods are the effective moment of inertia approach, the mean curvature approach, and the bilinear method. A parametric study is carried out to investigate the effect of the level of

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Yue, Tao, and Chunguo Liu. "A springback prediction method for double-curved plate bent with the multi-point forming method." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 234, no. 12 (2020): 1939–52. http://dx.doi.org/10.1177/0954410020921313.

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Stiffened panel as a kind of thin-walled component is widely used in aircraft. A novel stiffened panel manufacturing method has been proposed that the plate is bent into designed shape first with multi-point forming method and then milled into integral panel. However, in the bending process, springback is a great issue. In this paper, an analytical method is proposed to predict the springback of the double-curved bent plate in multi-point forming process. The method takes advantage of the loading force, which is obtained by the stress in the thickness direction, and the arrangement of the punc

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Jain, Pushpdant, and Mohammed Rajik Khan. "Prediction of biomechanical behavior of lumbar vertebrae using a novel semi-rigid stabilization device." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 233, no. 8 (2019): 849–57. http://dx.doi.org/10.1177/0954411919856497.

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The work investigates the effect of proposed novel semi-rigid stabilization device on lumbar segment L2-L3 so as to preserve motion at vertebral level. Here, the biomechanical behavior of intact spine with three instrumented spinal models (semi-rigid stabilization device, rigid implant and dynamic stabilization system NFlex) have been compared under the motion conditions of flexion, extension, bending and twist. Three-dimensional non-linear finite models of intact spine, semi-rigid stabilization device, rigid implant and dynamic stabilization system NFlex were developed in the present study. A

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Wang, Ge, Hideomi Ohtsubo, and Kikuo Arita. "Large Deflection of a Rigid-Plastic Circular Plate Pressed by a Sphere." Journal of Applied Mechanics 65, no. 2 (1998): 533–35. http://dx.doi.org/10.1115/1.2789089.

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A rigid-plastic circular plate deflected by a rigid sphere is investigated. The behavior at large deflection is considered; the contribution from a bending moment is neglected. Approximate formulas for the load-deflection relationship are derived. Experiments are conducted and the test data compare well with the prediction results. It is revealed that the size of the rigid sphere has a strong effecton the resistance of the compressed plate.

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Le, Mei, Zeng Pan, and Li Ping Lei. "Prediction and Application of Welding Residual Deformation of Steel Sheets." Advanced Materials Research 189-193 (February 2011): 3470–73. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.3470.

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Butt laser welding experiments of Q235 sheets in different parameter conditions are conducted, and residual deformation values of the samples are measured. To predict welding deformation, heat transfer analysis is first done by FEM to obtain corresponding quasi-steady temperature data; then an equivalent model is constructed based on temperature and inherent strain theory, and bending moment values are reversely calculated through specific measured deformation values by static analysis, which are verified by a series of process experiments. In the end, the established equivalent model is appli

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Zavattieri, Pablo D. "Modeling of Crack Propagation in Thin-Walled Structures Using a Cohesive Model for Shell Elements." Journal of Applied Mechanics 73, no. 6 (2005): 948–58. http://dx.doi.org/10.1115/1.2173286.

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A cohesive interface element is presented for the finite element analysis of crack growth in thin specimens. In this work, the traditional cohesive interface model is extended to handle cracks in the context of three-dimensional shell elements. In addition to the traction-displacement law, a bending moment-rotation relation is included to transmit the moment and describe the initiation and propagation of cracks growing through the thickness of the shell elements. Since crack initiation and evolution are a natural outcome of the cohesive zone model without the need of any ad hoc fracture criter

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Chen, Chao He. "Fatigue Assessment for Ship Structure Acted on Non-Linear Wave Loads." Key Engineering Materials 353-358 (September 2007): 2786–89. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.2786.

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Efficient methods are described here to predict the fatigue damage of ship structure due to nonlinear wave loads that are produced in random seas. Firstly the effects of the non-linear waveinduced bending moment on the fatigue damage of ship structure with very large bow flare are presented in short-term prediction by the method of spectrum analysis. Then, the fatigue damage is estimated and analyzed in the given environment of long-term.

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Pourboghrat, F., K. Chung, and O. Richmond. "A Hybrid Membrane/Shell Method for Rapid Estimation of Springback in Anisotropic Sheet Metals." Journal of Applied Mechanics 65, no. 3 (1998): 671–84. http://dx.doi.org/10.1115/1.2789110.

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A semi-analytical method to predict springback in sheet metal forming processes has been developed for the case of plane strain. In the proposed hybrid method, for each deformation increment, bending, and unbending stretches are analytically superposed on membrane stretches which are numerically obtained in advance from a membrane finite element code. Springback is then obtained by the unloading of a force and a bending moment at the boundary of each element treated as a shell. Hill’s 1948 yield criterion with normal anisotropy is used in this theory along with kinematic and isotropic hardenin

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Sládek, A., M. Patek, and M. Mičian. "Behavior of Steel Branch Connections during Fatigue Loading." Archives of Metallurgy and Materials 62, no. 3 (2017): 1597–601. http://dx.doi.org/10.1515/amm-2017-0244.

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AbstractFatigue behavior of the branch connection made of low-alloyed steel with yield stress of 355 MPa during low-cycle bending test is investigated in the article. Numerical prediction of the stress and strain distribution are described and experimentally verified by fatigue test of the branch connection sample. Experimental verification is based on low-cycle bending testing of the steel pipes welded by manual metal arc process and loaded by external force in the appropriate distance. Stresses and displacement of the samples induced by bending moment were measured by unidirectional strain g

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Tong, Liyong. "Strength Prediction of RTM Single-Lap Joints With Transverse Stitching." Journal of Engineering Materials and Technology 120, no. 4 (1998): 300–303. http://dx.doi.org/10.1115/1.2807018.

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It was experimentally shown that transverse stitching can provide an over 20 percent improvement in the strength of composite single-lap joints manufactured using the Resin Transfer Moulding (RTM) process. In this study, an analytical model is presented to predict the strength of the RTM single-lap joints with and without transverse stitching. Simple formulas are used to calculate the energy release rates of mode I and II using longitudinal membrane force and bending moment in a continuous adherent at an overlap end. The strengths of single-lap joints are determined using an interactive mixed-

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