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Journal articles on the topic 'Numerical Structure'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Nakaza, Eizo, Tsunakiyo Iribe, and Muhammad Abdur Rouf. "NUMERICAL SIMULATION OF TSUNAMI CURRENTS." Coastal Engineering Proceedings 1, no. 32 (2011): 6. http://dx.doi.org/10.9753/icce.v32.currents.6.

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The paper aims to simulate Tsunami currents around moving and fixed structures using the moving-particle semi-implicit method. An open channel with four different sets of structures is employed in the numerical model. The simulation results for the case with one structure indicate that the flow around the moving structure is faster than that around the fixed structure. The flow becomes more complex for cases with additional structures.

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2

Vasiljević, Rade. "Comparison of the continuous model and the finite element model of the gantry crane carrying structure for modal analysis." Vojnotehnicki glasnik 70, no. 3 (2022): 696–719. http://dx.doi.org/10.5937/vojtehg70-36051.

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Introduction/purpose: To study the adequacy of applying numerical methods in the modal analysis of complex carrying structures of cranes. Methods: Comparative application of the analytical method and the numerical method - FEM. Results: Some comparative values of the modal parameters were obtained both analytically and numerically for the derived solution of a gantry crane carrying structure. Conclusion: It is shown that the numerical method can give a reliable general quality estimate of the structural behaviour of a complex carrying structure from the aspect of modal analysis.

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3

RADULESCU, MATEI I., GARY J. SHARPE, CHUNG K. LAW, and JOHN H. S. LEE. "The hydrodynamic structure of unstable cellular detonations." Journal of Fluid Mechanics 580 (May 21, 2007): 31–81. http://dx.doi.org/10.1017/s0022112007005046.

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The study analyses the cellular reaction zone structure of unstable methane–oxygen detonations, which are characterized by large hydrodynamic fluctuations and unreacted pockets with a fine structure. Complementary series of experiments and numerical simulations are presented, which illustrate the important role of hydrodynamic instabilities and diffusive phenomena in dictating the global reaction rate in detonations. The quantitative comparison between experiment and numerics also permits identification of the current limitations of numerical simulations in capturing these effects. Simulations

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4

Lin, Gang, Yinghe Xie, Qihao Zhong, Wei Zeng, Zhenliang Chen, and Xi Zhang. "Numerical Investigation of Piezoelectric Vibration Energy Harvesting with L-shaped Beam." Journal of Physics: Conference Series 2433, no. 1 (2023): 012027. http://dx.doi.org/10.1088/1742-6596/2433/1/012027.

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Abstract Energy harvesting efficiency is a crucial problem in practical engineering applications of piezoelectric vibration energy harvester. L-shaped piezoelectric vibration energy harvester has the potential of broadband and high energy harvesting efficiency. Different vibration energy harvesting structures are numerically investigated here to compare their energy harvesting efficiencies, including traditional cantilever beam structure and L-shaped structures. Verification and validation of the numerical simulation approach adopted here are conducted firstly, through comparing the numerical

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5

Formentin, Sara Mizar, Giuseppina Palma, Pasquale Contestabile, Diego Vicinanza, and Barbara Zanuttigh. "2DV RANS-VOF NUMERICAL MODELING OF A MULTI-FUNCTIONAL HARBOUR STRUCTURE." Coastal Engineering Proceedings, no. 35 (June 23, 2017): 3. http://dx.doi.org/10.9753/icce.v35.structures.3.

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This paper is focused on the analysis of a multifunctional structure developed by the Second University of Naples, named OBREC, which is an Overtopping Breakwater for Energy Conversion. The hydraulic and structural performance are evaluated by means of the 2DV numerical model IH-2VOF developed by the University of Cantabria, in terms of average discharge rate, wave reflection coefficient and pressures acting on the structure. The results are compared with the laboratory experiments carried out at Aalborg University (Denmark) and with recent formulae and a new Artificial Neural Network. Further

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Song, Jixiang, Weimin Chen, Dingbang Yan, and Shuangxi Guo. "Study on drag reduction of flexible structure under flows." E3S Web of Conferences 245 (2021): 01019. http://dx.doi.org/10.1051/e3sconf/202124501019.

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Flexible structures are common in nature and engineering. Under the action of fluid, the flexible structure bends to reduce drag. The study of this phenomenon has important scientific and engineering significance, so this article conducts research. Firstly, the differential equations are established, then solved by numerical methods, and finally numerically simulated.

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Ruminek, Przemysław, and Piotr Żach. "POLYMERS FOAM STRUCTURE NUMERICAL IDENTIFICATION." Journal of KONES. Powertrain and Transport 21, no. 3 (2014): 259–63. http://dx.doi.org/10.5604/12314005.1133226.

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8

Sadek, Marwan, Fadi Hage Chehade, Bassem Ali, and Ahmed Arab. "Seismic Soil Structure interaction for Shear wall structures." MATEC Web of Conferences 281 (2019): 02006. http://dx.doi.org/10.1051/matecconf/201928102006.

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For soft soil subjected to earthquake loading, the soil non linearity could significantly amplify the ground motion. This paper presents a 3D numerical study on the influence of soil non linearity on the seismic soil structure interaction for shear wall structures. Numerical simulations are conducted for both elastic and elastoplastic behaviour for the soil. Real ground motions records are used in the study. The analysis is focused on the seismic induced response of the soil and the structure in terms of displacement and velocity. The results show that considering elastic model for the soil be

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9

Valente, Marco. "Seismic Rehabilitation of a Three-Storey R/C Flat-Slab Prototype Structure Using Different Techniques." Applied Mechanics and Materials 193-194 (August 2012): 1346–51. http://dx.doi.org/10.4028/www.scientific.net/amm.193-194.1346.

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This paper presents some results of a numerical study on the seismic performance and retrofitting of a R/C flat-slab prototype structure. The study was based on an experimental program carried out at the JRC ELSA Laboratory with the aim of assessing the seismic behaviour of flat-slab structures. Numerical models of the test structure were developed and nonlinear static and dynamic analyses were carried out. Two seismic retrofit techniques were numerically simulated to enhance the seismic performance of the structure. First the structure was rehabilitated by concrete jacketing of columns with a

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10

Wang, Shu Hong, Yong Bin Zhang, Chun An Tang, and Lian Chong Li. "Numerical Study on Cracking Process of Masonry Structure." Advanced Materials Research 9 (September 2005): 117–26. http://dx.doi.org/10.4028/www.scientific.net/amr.9.117.

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Masonry structure is heterogeneous and has been widely used in building and construction engineering. The study on cracking pattern of masonry structure is significant to engineering design. Many previous investigations on the failure process of masonry structure are usually based on the homogenization technique by selecting a typical unit of masonry to serve as a representative volume. This kind of numerical analysis neglects the mesoscopic heterogeneous structure, which cannot capture the full cracking process of masonry structures. The cracking process of masonry structure is dominantly aff

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11

Ahn, Seongnoh, Gun Park, Hyungchul Yoon, Jae-Hyeok Han, and Jongwon Jung. "Evaluation of Soil–Structure Interaction in Structure Models via Shaking Table Test." Sustainability 13, no. 9 (2021): 4995. http://dx.doi.org/10.3390/su13094995.

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Modeling the soil–structure interaction (SSI) in seismic design involves the use of soil response curves for single-degree-of-freedom (SDOF) structures; however, real structures have multiple degrees of freedom (MDOF). In this study, shaking-table-derived p-y curves for SDOF and MDOF superstructures were compared using numerical analysis. It was found that an MDOF structure experienced less displacement than an SDOF structure of the same weight, but the effect of increasing the DOF decreased at greater pile depths. Numerical analysis results estimated using the natural periods and mass partici

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12

Zhou, Xiang Yang, and Qi Lin Zhang. "Numerical Simulation of Fluid-Structure Interaction for Tension Membrane Structures." Advanced Materials Research 457-458 (January 2012): 1062–65. http://dx.doi.org/10.4028/www.scientific.net/amr.457-458.1062.

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Comprehensive studies on effect of fluid-structure interaction and dynamic response for tension structure were conducted by the numerical simulation. An iterative coupling approach for time-dependent fluid-structure interactions is applied to tension membranous structures with large displacements. The coupling method connects a flow-condition-based interpolation element for incompressible fluids with a finite element for geometrically nonlinear problems. A membranous roof with saddle shape exposed to fluctuating wind field at atmosphere boundary layer was investigated for the coupling algorith

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Zhou, Xiang Yang, and Qi Lin Zhang. "Numerical Simulation of Fluid-Structure Interaction for Tension Membrane Structures." Advanced Materials Research 457-458 (January 2012): 1062–65. http://dx.doi.org/10.4028/scientific5/amr.457-458.1062.

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Kitiashvili, I. N., A. G. Kosovichev, A. A. Wray, and N. N. Mansour. "Numerical simulations of magnetic structures." Proceedings of the International Astronomical Union 6, S273 (2010): 315–19. http://dx.doi.org/10.1017/s1743921311015444.

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AbstractWe use 3D radiative MHD simulations of the upper turbulent convection layer for investigation of physical mechanisms of formation of magnetic structures on the Sun. The simulations include all essential physical processes, and are based of the LES (Large-Eddy Simulations) approach for describing the sub-grid scale turbulence. The simulation domain covers the top layer of the convection zone and the lower atmosphere. The results reveal a process of spontaneous formation of stable magnetic structures from an initially weak vertical magnetic field, uniformly distributed in the simulation

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15

Xiang, Jixin, Yujie Jia, Zhiqiang Li, and He Ren. "Effects of Different Structural Film Cooling on Cooling Performance in a GO2/GH2 Subscale Thrust Chamber." Aerospace 11, no. 6 (2024): 433. http://dx.doi.org/10.3390/aerospace11060433.

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To investigate the wall cooling of the thrust chamber in an engine, two film-cooling structures, namely, a circular hole structure and a slot structure, were designed. Numerical simulations were performed to study the coupled flow and regenerative cooling heat transfer in thrust chambers with different structures. The influences of parameters such as the film mass flow rate and film hole size on wall cooling were analyzed. Experiments were conducted in a thrust chamber to validate the accuracy of the numerical calculation method. The results indicate that the slot-structured film adheres bette

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16

Ghormare, Mithleshwari, and Alok Kumar. "Numerical Analysis on Quantum Graphs Differential/Pseudo-Differential Operator: some Basic Structure." Journal of Advances and Scholarly Researches in Allied Education 15, no. 4 (2018): 253–62. http://dx.doi.org/10.29070/15/57892.

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17

Kimura, Yuichiro, Hideyuki Niizato, Kyouichi Nakayasu, Tomohiro Yasuda, Nobuhito Mori, and Hajime Mase. "NUMERICAL MODEL FOR FLAP-GATE RESPONSE TO TSUNAMI AND ITS VERIFICATION BY HYDRAULIC EXPERIMENTS." Coastal Engineering Proceedings 1, no. 32 (2011): 21. http://dx.doi.org/10.9753/icce.v32.structures.21.

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A flap-gate breakwater is a new type structure for coastal disaster reduction against tsunamis and storm surges. The breakwater usually lies down on the seabed and rises up as a seawall with its buoyancy when tsunami or storm surge occurs. In our previous experimental studies, wave blocking capabilities of the flap-gate against tsunamis were confirmed, and the characteristics of the gate motion and wave pressure have been clarified changing wave condition. Present study develops a numerical model considering fluid-body interactions for the flap-gate and validation of the numerical model is con

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18

Castellino, Myrta, Alessandro Antonini, Daniele Celli, et al. "NUMERICAL EXPERIMENTS ON OVERHANGING PARAPETS UNDER NON-BREAKING WAVE CONDITIONS." Coastal Engineering Proceedings, no. 37 (September 1, 2023): 85. http://dx.doi.org/10.9753/icce.v37.structures.85.

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Sea-wall and storm-wall structures aim to protect coastal areas and harbours from wave attacks. They are often located in the neighbours of city centres, that in turn impose rather severe visual limits affecting the maximum height of the structure. To combine the architectonical visual restrictions and the overtopping safety limits, imposed by different national standards, alternative solutions such as recurved parapet are often applied. Even for non-breaking wave conditions, these structures are subjected to large impulsive pressure that has been recently described and named as Confined-Crest

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19

Bolisetti, Chandrakanth, and Andrew S. Whittaker. "Numerical investigations of structure-soil-structure interaction in buildings." Engineering Structures 215 (July 2020): 110709. http://dx.doi.org/10.1016/j.engstruct.2020.110709.

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20

Nie, Gui-bo, Chen-xiao Zhang, and Jun-wu Dai. "Seismic behavior study on a space double-layer lattice structure with a lower supporting structure." Advances in Mechanical Engineering 10, no. 11 (2018): 168781401881437. http://dx.doi.org/10.1177/1687814018814370.

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Severe damage, such as support failure, global buckling of members, local buckling of members, fracture of members, dislocation at the end of members, and failure of bolted connections, were observed in space double-layer lattice structures following the Lushan earthquake (China, 2013, M 7.0). To study the seismic behavior of the space double-layer lattice structure with a lower supporting structure, a series of shaking table tests were conducted. A nonlinear numerical analysis was performed on the damage of the structure, in which the material parameters were obtained from material tests of t

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21

Zheng, Jun Wei, Ming Sheng He, and Gui Ju Shi. "A Numerical Analysis of Infilling-Wall Multi-Functional Vibration Reduction." Advanced Materials Research 291-294 (July 2011): 2055–59. http://dx.doi.org/10.4028/www.scientific.net/amr.291-294.2055.

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Based on the experimental study, this paper analyzes the stress given by series of Structured Infilling-walls reducing vibration multi-functionally in the help of the finite element analysis software, ANSYS. It is a comprehensive comparative analysis that different structures, thickness of walls, storeys, and spans are included. The conclusion is drawn that filling-wall can improve the mechanical properties of multi-functional vibration-reducing structure of infilling-wall, which provides theoretical evidence for infilling wall multi-functional vibration-reducing structure under different circ

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22

Różyło, P., P. Wysmulski, and K. Falkowicz. "Fem and Experimental Analysis of Thin-Walled Composite Elements Under Compression." International Journal of Applied Mechanics and Engineering 22, no. 2 (2017): 393–402. http://dx.doi.org/10.1515/ijame-2017-0023.

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Abstract Thin-walled steel elements in the form of openwork columns with variable geometrical parameters of holes were studied. The samples of thin-walled composite columns were modelled numerically. They were subjected to axial compression to examine their behavior in the critical and post-critical state. The numerical models were articulately supported on the upper and lower edges of the cross-section of the profiles. The numerical analysis was conducted only with respect to the non-linear stability of the structure. The FEM analysis was performed until the material achieved its yield stress

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23

Ishii, Hidenori, Tomoya Shibayama, and Jacob Stolles. "PHYSICAL AND NUMERICAL MODELLING OF THE FLOW STRUCTURE BEHIND STRUCTURE IN TSUNAMI-LIKE FLOW." Coastal Engineering Proceedings, no. 36 (December 30, 2018): 17. http://dx.doi.org/10.9753/icce.v36.currents.17.

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Coastal structures are expected to play a role as evacuation buildings. Numerous studies have been examined tsunami-induced wave force acting on an inland building (Shigihara et al., 2009; Arimitsu et al., 2014). In addition, coastal structures have the potential to obstruct inundating tsunami waves, protecting structure further from the coastline. Hydraulic experiments and numerical calculations on shielding effect are being carried out. Alternatively, the vortices from these structures can result in significant scour downstream, influencing downstream structure stability. In the 2011 Tohoku

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24

KARACHALIOS, E., C. VRETTOS, Z. MARIOLI-RIGA, et al. "NUMERICAL SIMULATION AND TESTING OF A COMPOSITE-STIFFENED STRUCTURE UNDER COMBINED BUCKLING LOADS." International Journal of Structural Stability and Dynamics 10, no. 04 (2010): 871–84. http://dx.doi.org/10.1142/s0219455410003786.

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Prediction of the buckling behavior of structures is of great interest in the aerospace industry, and extensive research is taking place worldwide in that area. The current work concerns numerical simulation of the collapse test of a closed stiffened composite box subjected to compression followed by torsion. Numerical simulation is performed and the results are correlated with experimental findings. The objective is to validate the numerical model and detect any deficiencies of the modeling procedure. For this purpose, a series of quantities numerically predicted are directly compared with ex

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25

Ishiki, Kenshiro, Lee S. Cunningham, and Benedict D. Rogers. "NUMERICAL MODELLING OF FLUID-STRUCTURE INTERACTION INVOLVING TSUNAMI BORE AND DEBRIS IMPACT." Coastal Engineering Proceedings, no. 38 (May 29, 2025): 30. https://doi.org/10.9753/icce.v38.structures.30.

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One of the key aspects with no general consensus is the role and significance of floating debris in tsunamis. There are multiple uncertainties including whether to combine debris impact force with any other tsunami-related loads while not including loads from damming and multiple debris impacts, which might compromise the structural reliability designed in conformity with these codes. Towards improved quantification of tsunami loads, the present work employs a numerical coupling strategy using smoothed particle hydrodynamics (SPH) and the finite element method (FEM) as shown in Figure 1. The p

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Hildebrandt, Arndt, and Torsten Schlurmann. "BREAKING WAVE KINEMATICS, LOCAL PRESSURES, AND FORCES ON A TRIPOD STRUCTURE." Coastal Engineering Proceedings 1, no. 33 (2012): 71. http://dx.doi.org/10.9753/icce.v33.structures.71.

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This paper presents breaking wave loads on a tripod structure from physical model tests and numerical simulations. The large scale model tests (1:12) are described as well as the validation of the three dimensional numerical model by comparison of CFD wave gauge data and pressures with measurements in the large wave flume inside and outside the impact area. Subsequently, the impact areas due to a broken wave, a curled wave front as well as for wave breaking directly at the structure with a partly vertical wave front are compared to each other. Line forces in terms of slamming coefficients with

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27

Son, Moorak, and Edward J. Cording. "Numerical model tests of building response to excavation-induced ground movements." Canadian Geotechnical Journal 45, no. 11 (2008): 1611–21. http://dx.doi.org/10.1139/t08-074.

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Distortion and damage to masonry and frame structures on shallow foundations subjected to excavation-induced ground movements have been investigated using numerical model tests. The numerical tests were modeled using the two-dimensional (2-D) universal distinct element code (UDEC) version 3.1 in which each masonry unit was modeled as a block, with the contacts between blocks having stiffness and strength characteristics of mortar. The soil was modeled elastically with a stiffness selected to provide the same pressure–displacement relation for the 2-D model as that for the three-dimensional (3-

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28

Li, Xiang, Li Cheng Yu, You Hui Zhou, Yang Li, and Xun Zhang. "Numerical Simulation of New Class-Honeycomb Sandwich Structure's Core." Advanced Materials Research 834-836 (October 2013): 1601–6. http://dx.doi.org/10.4028/www.scientific.net/amr.834-836.1601.

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As the sandwich structure materials extensively used in the engineering field, the existing sandwich structure materials can not meet the requirements of engineering design gradually. New sandwich structural materials with efficient, energy-saving and easy processing need to be developed urgently. Relying on the mature research results now on honeycomb sandwich structure, the class-honeycomb sandwich structure is put forward for the first time, meanwhile, innovate configuration in the structure. Based on this, the paper analyzes the mechanics properties of the structure and the results showed

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29

Liu, Nan, Jun Zhao, Hong Wang Zhang, Xin Huang, and Jin Li Liu. "Modal Analysis and Optimization Design on a Vehicle-Load Rectangle Liquid Containers under Fluid-Structure Coupling." Applied Mechanics and Materials 120 (October 2011): 444–47. http://dx.doi.org/10.4028/www.scientific.net/amm.120.444.

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This paper addresses vibration characteristics issues of a rectangle liquid container under both empty and fluid-structure coupling conditions. It uses finite element programming to calculate different rib reinforcement liquid container structures numerically. Results of the calculation provide the numerical and theoretical supports of liquid containers design for the series of engineering conditions.

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30

Liu, Wenbo, Qikai Qin, Yongwei Liu, Keming Wu, Qi Zhou, and Dejiang Shang. "Effect of wall heating on flow-induced structure vibration noise of an underwater wing structure." Journal of Physics: Conference Series 3007, no. 1 (2025): 012059. https://doi.org/10.1088/1742-6596/3007/1/012059.

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Abstract This paper investigates the control effect of wall heating on turbulent pressure fluctuations and flow-induced structure vibration noise in a wing structures through numerical calculations. The control mechanism of wall heating is examined through turbulent kinetic energy distribution, the flow separation location, and the three-dimensional vortex structure. The flow and sound fields are solved employing the large-eddy simulation (LES) method and a hybrid numerical method, respectively. Numerical calculation results show that wall heating delays the flow separation and shortens the de

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31

Koepf, Johannes A., Julian Pistor, Matthias Markl, and Carolin Körner. "Numerical Microstructure Prediction for Lattice Structures Manufactured by Electron Beam Powder Bed Fusion." Crystals 14, no. 2 (2024): 149. http://dx.doi.org/10.3390/cryst14020149.

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The latest advances in additive manufacturing have given rise to an increasing interest in additively built lattice structures due to their superior properties compared to foams and honeycombs. The foundation of these superior properties is a tailored microstructure, which is difficult to achieve in additive manufacturing because of the variety of process parameters influencing the quality of the final part. This work presents the numerical prediction of the resulting grain structure of a lattice structure additively built by electron beam powder bed fusion. A thermal finite-difference model i

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32

Wang, Shilong. "Novel structure for distributed numerical control." Chinese Journal of Mechanical Engineering (English Edition) 16, no. 04 (2003): 437. http://dx.doi.org/10.3901/cjme.2003.04.437.

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33

Gimenez, Philippe, and Hema Srinivasan. "Structure of some numerical semigroup rings." Banach Center Publications 121 (2020): 53–62. http://dx.doi.org/10.4064/bc121-5.

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34

Cannata, Giovanni. "Numerical Investigation of Wave-Structure Interaction." Journal of Marine Science and Engineering 11, no. 1 (2022): 37. http://dx.doi.org/10.3390/jmse11010037.

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The simulation of the propagation and evolution of sea waves in coastal regions and their interaction with coastal structures is a very useful engineering tool in several problems of coastal and environmental engineering [...]

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Bonito, Andrea, Diane Guignard, and Angelique Morvant. "Numerical approximations of thin structure deformations." Comptes Rendus. Mécanique 351, S1 (2023): 1–37. http://dx.doi.org/10.5802/crmeca.201.

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Hou, Gene, Jin Wang, and Anita Layton. "Numerical Methods for Fluid-Structure Interaction — A Review." Communications in Computational Physics 12, no. 2 (2012): 337–77. http://dx.doi.org/10.4208/cicp.291210.290411s.

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AbstractThe interactions between incompressible fluid flows and immersed structures are nonlinear multi-physics phenomena that have applications to a wide range of scientific and engineering disciplines. In this article, we review representative numerical methods based on conforming and non-conforming meshes that are currently available for computing fluid-structure interaction problems, with an emphasis on some of the recent developments in the field. A goal is to categorize the selected methods and assess their accuracy and efficiency. We discuss challenges faced by researchers in this field

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Аbakumov, A. I., Yu B. Bazarov, E. A. Veselova, et al. "A RAPIDLY ERECTED TEMPORARY STRUCTURE PROTECTING FROM POWERFUL EXPLOSIONS." Problems of strenght and plasticity 81, no. 2 (2019): 222–32. http://dx.doi.org/10.32326/1814-9146-2019-81-2-222-232.

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A design of a rapidly erected temporary structure reducing adverse factors of a powerful explosion to the levels safe both for people and building structures is proposed. The protective structure consists of three separate metal frames with the open upper part, welded or bolted to each other and covered with metal profile. Each frame houses reservoirs of watertight cloth filled with water. Damping of an air shockwave has been numerically modeled, and a full-scale rapidly erected temporary protective structure has been tested with an explosion of a home-made 100kg-trotil equivalent explosive de

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38

Ma, Jing, Jun Zhao, and Yu Ling Zhao. "Numerical Simulation of Building Strength when Foundation Subsides Unevenly." Advanced Materials Research 588-589 (November 2012): 2069–73. http://dx.doi.org/10.4028/www.scientific.net/amr.588-589.2069.

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A building structure is analyzed using finite element method. The stresses and strains of the structure are calculated numerically, when the foundation subsides unevenly. Thus, the effect of the sedimentation is evaluated. The results can be referenced in the evaluation of building structures.

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Zhang, Jiping, and Yonghe Xie. "Collision Numerical Simulation Research of River-Sea Ship." Open Mechanical Engineering Journal 8, no. 1 (2014): 885–91. http://dx.doi.org/10.2174/1874155x01408010885.

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Collision simulation of river-sea ship is accomplished based on nonlinear finite element method. Firstly, we discuss the development of collision analysis methods including theoretical methods, empirical formula method, experimental techniques and numerical analysis methods, and introduce the Central Difference Method adopted in the collision simulation. Then, model of ship structure and rigid sphere structure are established, through taking into account the suitability for collision simulation of ship structure, we adopt Cowper-Symonds constitutive equation as the material characteristics and

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40

Bozorgnia, Mehrdad, Jiin-Jen Lee, and Frederic Raichlen. "WAVE STRUCTURE INTERACTION: ROLE OF ENTRAPPED AIR ON WAVE IMPACT AND UPLIFT FORCES." Coastal Engineering Proceedings 1, no. 32 (2011): 57. http://dx.doi.org/10.9753/icce.v32.structures.57.

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In present paper, a numerical wave load model based on compressible two-phase Navier Stokes type equations is used to evaluate hydrodynamic forces exerted on I-10 bridge across Mobil Bay which was extensively damaged during Hurricane Katrina. The volume of fluid method (VOF) is used in the model to describe dynamic free surface which is capable of simulating complex discontinuous free surface associated with wave-deck interactions. Special emphasis was put on investigating the role of entrapped air on hydrodynamic forces exerted on bridge superstructure. Numerical simulation results indicate t

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41

Mourlas, Christos, Neo Khabele, Hussein A. Bark, et al. "Effect of Soil–Structure Interaction on Nonlinear Dynamic Response of Reinforced Concrete Structures." International Journal of Structural Stability and Dynamics 20, no. 13 (2020): 2041013. http://dx.doi.org/10.1142/s0219455420410138.

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Investigating the nonlinear dynamic response of reinforced concrete (RC) structures is of significant importance in understanding the expected behavior of these structures under dynamic loading. This becomes more crucial during the design of new or the assessment of the existing RC structures that are located in seismically active areas. The numerical simulation of this problem through the use of detailed 3D modeling is still a subject that has not been investigated thoroughly due to the significant challenges related to numerical instabilities and excessive computational demand, especially wh

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42

Zhang, Yong, Ning He, and Yubo Hou. "Crashworthiness Optimization of a Vertex Fractal Hexagonal Structure." International Journal of Computational Methods 17, no. 07 (2019): 1950031. http://dx.doi.org/10.1142/s0219876219500312.

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Thin-walled structures are used in automotive industry due to their excellent lightweight and crashworthiness properties. This paper proposes a vertex fractal multi-cell hexagonal structure to develop a novel lightweight energy absorber. Experimental analysis and numerical modeling are performed to investigate the crashworthiness of the fractal multi-cell hexagonal structures. The numerical results indicate that fractal configurations and geometrical parameters of the fractal hexagonal structure have significant effect on the crashworthiness. In addition, the multi-objective design optimizatio

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Hu, Zhengyu, and Yuzhu Li. "NUMERICAL STUDY ON THE INTERACTION BETWEEN PERIODIC WAVES AND A FLEXIBLE WALL." Coastal Engineering Proceedings, no. 37 (September 1, 2023): 3. http://dx.doi.org/10.9753/icce.v37.structures.3.

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Coastal structures were usually considered as stiff in the majority of studies related to wave structure interaction I n certain situations, such as impulsive wave loading on flexible breakwaters, ship hulls, tank walls hydroelasticity can be of importance for both wave dynamics and structural responses Akrish et al. (2018) showed that hydroelastic effects can either relax or amplify the hydrodynamic characteristics (i.e., wave run up and force) and structural oscillations in a deformable cantilever wal l interacting with an incident wave group. For flexible coastal defenses, Huang and Li (202

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Vassiliou, Michalis F., Cihan Cengiz, Matt Dietz, et al. "Dataset from the shake table tests of a rocking podium structure." Earthquake Spectra 37, no. 3 (2021): 2107–25. http://dx.doi.org/10.1177/8755293020988017.

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Conventional validation of analytical and numerical models in Earthquake Engineering involves the comparison of numerically simulated response time histories to experimentally obtained benchmark responses to the same earthquake excitations. As the seismic design problem is inherently stochastic, an alternative, statistical, and easier-to-pass validation procedure has been suggested. As an example, numerical and analytical models may fail to predict the planar rocking response of a rigid block to a specific ground motion, but they can be proven quite successful in predicting the statistical dis

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Ćwieka, K., T. Wejrzanowski, and K. J. Kurzydłowski. "Incorporation of the Pore Size Variation to Modeling of the Elastic Behavior of Metallic Open-Cell Foams." Archives of Metallurgy and Materials 62, no. 1 (2017): 259–62. http://dx.doi.org/10.1515/amm-2017-0039.

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Abstract In the present paper we present the approach for modeling of the elastic behavior of open-cell metallic foams concerning non-uniform pore size distribution. This approach combines design of foam structures and numerical simulations of compression tests using finite element method (FEM). In the design stage, Laguerre-Voronoi tessellations (LVT) were performed on several sets of packed spheres with defined variation of radii, bringing about a set of foam structures with porosity ranging from 74 to 98% and different pore size variation quantified by the coefficient of pore volume variati

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Miedziałowski, Czesław, Tadeusz Chyży, and Joanna Krętowska. "NUMERICAL MODEL OF THREE‐DIMENSIONAL COUPLED WALL STRUCTURES." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 13, no. 1 (2007): 37–45. http://dx.doi.org/10.3846/13923730.2007.9636417.

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Three‐dimensional description of a building structure taking into consideration the soil structure interaction is a very complex problem; the solution of it is often obtained by the finite‐element method. However, this method takes a significant amount of computational time and memory. Therefore an efficient computational model based on the subdivision of the structure into building elements such as wall and floor slab elements, plane and three‐dimensional joints and lintels, that could provide accurate results with a significantly reduced computational time, is proposed in this study for the

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Smith, Nils Solheim, Ganesh H. R. Ravindra, and Fjóla Guðrún Sigtryggsdóttir. "Numerical Modeling of the Effects of Toe Configuration on Throughflow in Rockfill Dams." Water 13, no. 13 (2021): 1726. http://dx.doi.org/10.3390/w13131726.

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The rockfill toe structure situated within the downstream slope of rockfill dams is an integral part of a defense mechanism safeguarding the dam structure in throughflow situations. Recent studies have concluded that the rockfill toe structure can have significant impacts on throughflow development and stability of rockfill dams under scenarios of accidental throughflow caused by overtopping of the dam core. The ability to numerically model the effect of various toe configurations on flow through rockfill dams can support the design of effective toe drainage structures for rockfill dams. Devel

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Matsunaga, Yasuo, and Wataru Kanda. "Numerical Modeling of a Volcanic Hydrothermal System Based on Resistivity Structure." Journal of Disaster Research 17, no. 5 (2022): 654–62. http://dx.doi.org/10.20965/jdr.2022.p0654.

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Numerical simulation is a useful method for studying the magmatic-hydrothermal systems of volcanoes. However, no comprehensive scheme has been established for constructing subsurface permeability structures that have a significant impact on fluid flow within the volcano. In this study, as a first step to establishing such a scheme, numerical simulations of hydrothermal fluid flow incorporating the heterogeneous properties of the permeability structure were performed utilizing the resistivity structure observed at Kusatsu-Shirane Volcano, central Japan. Although the constructed permeability str

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Song, Sunghoon, Minsu Park, Youngjun You, Younju Jeong, and Yoonkoog Hwang. "NUMERICAL ANALYSIS OF INTERLOCKING CAISSON BREAKWATER USING MODULAR SYSTEM." Coastal Engineering Proceedings, no. 36 (December 30, 2018): 20. http://dx.doi.org/10.9753/icce.v36.structures.20.

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Breakwaters have been severely damaged quite often since they are directly exposed to large waves. And damage level of breakwaters has been scaled up because of abnormal global climate changes. In particular, according to the report of caisson breakwater damages in Japan(Takayama, 2002), it was found that damages caused by caisson sliding, account for more than 70% of breakwater failure modes. So, the design criteria for new breakwaters is being intensified to cope with abnormal global climate changes and unusual waves. In the case of a long structure, the wave force is reduced due to the phas

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Husain, Nurulakmar Abu, Andy Snaylam, Hamed Haddad Khodaparast, S. James, Geoff Dearden, and Hua Jiang Ouyang. "FE Model Updating for Damage Detection – Application to a Welded Structure." Key Engineering Materials 413-414 (June 2009): 393–400. http://dx.doi.org/10.4028/www.scientific.net/kem.413-414.393.

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Finite Element (FE) model updating is initially developed to update numerical models of structures to match their experimentally measured modal properties (i.e., natural frequencies and modes). In FE model updating, uncertain physical parameters of a structure are modified so that the discrepancies between the numerically estimated and experimentally measured modal properties are minimized. The process of updating is employed not only in parameter identification; it can also be developed for structural damage identification. In this work, a welded structure that is intended to represent a comm

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