Relevant bibliographies by topics / Finite element method. Dowels Timber joints

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Academic literature on the topic 'Finite element method. Dowels Timber joints'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Finite element method. Dowels Timber joints"

1

Vodiannikov, Mikhail, Galina Kashevarova, and Danil Starobogatov. "NUMERICAL MODELING AND FULL-SCALE EXPERIMENTS OF GLUED WOODEN STRUCTURES JOINT DESTRUCTION ON CARBON-FIBER DOWEL PINS." International Journal for Computational Civil and Structural Engineering 16, no. 2 (June 26, 2020): 101–12. http://dx.doi.org/10.22337/2587-9618-2020-16-2-101-112.

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This paper presents the results of numerical modeling and full-scale experiments of the failure process of a glued laminated timber beam with rigid joint in the middle. All the connecting parts are made of carbon fiber. The structural analysis is done with the finite element method (ANSYS software). The nonlinear problem was solved. The contact interaction of the structural elements in the process of deformation and fracture, as well as orthotropy of the wood, the transversely isotropic properties of the plates, and the real diagrams of the deformation of carbon fiber dowel pins were taken into account. The influence of the structural parameters of the joint on the position of the most loaded dowel pin in the joint and the bearing capacity of the general structure are investigated. To verify the structural analysis results, field tests were carried out before destruction by a stepwise increasing load on a personally designed stand. The destruction of the structure occurred according to the forecast of the numerical model as a result of the mutual slip of the glued wood layers and the destruction of the polymer matrix of the glued dowel pins with the beginning of the formation of plastic joints and the formation of cracks in the wood at the junction.
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Guan, Z. W., and P. D. Rodd. "A three-dimensional finite element model for locally reinforced timber joints made with hollow dowel fasteners." Canadian Journal of Civil Engineering 27, no. 4 (August 1, 2000): 785–97. http://dx.doi.org/10.1139/l00-018.

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Brittle premature failure caused by splitting parallel to the timber grain is a common failure mode in glulam joints made with solid dowel type fasteners. It is thought that this problem can be alleviated by using hollow steel dowels as the fasteners and reinforcing the timber locally in the area of the joint. In this way, by varying the wall thickness of the dowels and the thickness of the reinforcing members, a chosen combination of strength and stiffness should be attainable together with a ductile failure mode. In this paper, three-dimensional nonlinear finite element models are developed to simulate (i) the structural performance of a timber joint made with a single hollow steel dowel and (ii) a moment transmitting joint made with a number of the dowels, each type being locally reinforced by densified veneer wood. The models incorporate suitably defined elastoplasticity and orthotropic elasticity and also allow for large deformations of the joints as well as for frictional contact between the timber and the dowel. They are calibrated against physical test data from joints loaded to failure.Key words: glulam, densified veneer wood, resin injected, hollow dowel fastener, moment transmitting, ductile failure, finite element.
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Vodiannikov, Mikhail, and Galina Kashevarova. "Composite Solutions for Glulam Joints." Key Engineering Materials 801 (May 2019): 47–52. http://dx.doi.org/10.4028/www.scientific.net/kem.801.47.

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The current level of the development of composite materials allows producing laminate structures with the desired properties. The application of supercomputer calculation and software systems, numerical modeling methods using finite elements enables the design and analysis of such structures. This article deals with design and calculation methods; the results of the full-scale tests of the joints of glued laminated timber with carbon fiber dowel pins and plates are presented. An overview of the behavior of such structures in corrosive environment and the comparative analysis with traditional steel components are also presented herein. Advantages and disadvantages of glulam joints where composite materials are used are noted. Examples of the joint use of composi\te materials and timber in Russia and internationally are given. Conclusions about the possibilities and ways of using composite materials in the design of wide-spanned glued timber structures are drawn.
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Šimek, Milan, and Petr Koňas. "Bending stress modeling of dismountable furniture joints applied with a use of finite element method." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 57, no. 1 (2009): 137–46. http://dx.doi.org/10.11118/actaun200957010137.

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Presented work focuses on bending moment stress modeling of dismountable furniture joints with a use of Finite Element Method. The joints are created from Minifix and Rondorfix cams combined with non-glued wooden dowels. Laminated particleboard 18 mm of thickness is used as a connected material. The connectors were chosen such as the most applied kind in furniture industry for the case furniture. All gained results were reciprocally compared to each other and also in comparison to experimental testing by the mean of stiffness. The non-linear numerical model of chosen joints was successfully created using the software Ansys Workbench. The detailed analysis of stress distribution in the joint was achieved with non-linear numerical simulation. A relationship between numerical si­mu­la­tion and experimental testing was showed by comparison stiffness tangents. A numerical simulation of RTA joint loads also demonstrated the important role of non-glued dowels in the tested joints. The low strength of particleboard in the tension parallel to surface (internal bond) is the most likely the cause of the joint failure. Results are applicable for strength designing of furniture with the aid of Computer Aided Engineering.
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Grosek, Jiri, Andrea Zuzulova, and Ilja Brezina. "Effectiveness of Dowels in Concrete Pavement." Materials 12, no. 10 (May 22, 2019): 1669. http://dx.doi.org/10.3390/ma12101669.

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Dowels are located in transverse joints of Jointed Plain Concrete Pavements (JPCP) and they are used to provide load transfer between individual slabs, reduce faulting and improve performance. Dowels and the concrete itself are under the highest stress in the vicinity of joints; thus, in terms of pavement design, the joints are the weakest points of the whole structure. This study dealt with the drawbacks of JPCP with dowels. The evaluation was based on direct measurements on real airport and motorway pavements and highlights insufficient efficiency of load transfer and its possible causes. The authors present a successful outcome with validation by using the finite element method where high tensile stress values of the surrounding concrete were found.
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6

Sii, How Bing, Gary W. Chai, Rudi van Staden, and Hong Guan. "Three-Dimensional Finite Element Analysis of Doweled Joints in Concrete Pavements." Advanced Materials Research 723 (August 2013): 245–57. http://dx.doi.org/10.4028/www.scientific.net/amr.723.245.

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Concrete pavements are usually selected by pavement engineers for roads subjected to heavy traffic loading and feature high maintenance and construction costs. As such, the structural behaviour of concrete pavements with doweled joints is evaluated herein using Finite Element Method. The pavement system is modelled using three-dimensional brick elements and five loading cases are applied to replicate realistic vehicular loadings approaching and leaving the joint. The structural behaviour of the pavement at the doweled joint is investigated for: (1) pavement with and without voids, and (2) different dowel bar spacing. The amount of load transfer was obtained from the shear force in the beam elements that simulate dowels. Results show that the voids underneath the joint causes an increase in the vertical displacement of the concrete slab and vertical stress at concrete/dowel bar interface which may result in crushing of the concrete and dowel loosening. Wider dowel spacings result in increased shear forces and the size of the region containing engaged dowels does not change significantly with dowel spacing, only effecting the distribution of shear forces. The study shows that the dowel bars perform effectively as a load transfer device in the concrete pavement system even under severe conditions.
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Li, Luo Ke, Yi Qiu Tan, Xiang Bing Gong, and Yun Liang Li. "Load Transfer Characteristics and Durability Study of GFRP Dowels in Jointed Concrete Pavement." Advanced Engineering Forum 5 (July 2012): 277–82. http://dx.doi.org/10.4028/www.scientific.net/aef.5.277.

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The corrosion of steel dowels in concrete pavement can compromise the load transfer capability of joints and lead to premature damage. To solve this problem, the non-corrosive glass fibre reinforced polymers (GFRP) bar has been used as dowels in concrete pavement instead of the steel dowels.This thesis demonstrates the Load Transfer Characteristics of a GFRP dowels with the help of a 3D finite-element model, and various evaluation method and index are studied as well, including: (1)efficiency of load transfer , (2)coefficient of shear transfer , (3) distribution ratio of shear transfer. An accelerated test is applied to examine the long-term performance of the GFRP dowel bars by using self-designed equipment.This study shows that GFRP dowels is a feasible alternative to steel dowels which can entirely meet the needs of road performance, and the research results will be useful in the design and application of GFRP dowels in jointed concrete pavements.
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8

Meghlat, E.-M., M. Oudjene, H. Ait-Aider, and J.-L. Batoz. "A new approach to model nailed and screwed timber joints using the finite element method." Construction and Building Materials 41 (April 2013): 263–69. http://dx.doi.org/10.1016/j.conbuildmat.2012.11.068.

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9

Holzer, S. M., C. H. Wu, and J. Tissaoui. "Finite Element Stability Analysis of a Glulam Dome." International Journal of Space Structures 7, no. 4 (December 1992): 353–61. http://dx.doi.org/10.1177/026635119200700411.

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The paper centres on stability investigations of a glued-laminated timber (glulam) dome under several snow load conditions. The dome consists of a triangulated network of curved glulam beams, a decking supported by curved purlins, and a steel tension ring. The dome is represented by two different models. The first model is a rigid-jointed space frame composed of curved beam elements. The second model consists of straight beam elements, with rigid or flexible joints, and a bracing to simulate the lateral support of the beams provided by the decking. Two finite element methods are presented and used in the analyses: A nonlinear method that computes the buckling load and a combined nonlinear/linear eigenvalue method that provides estimates of the buckling load. The results presented include buckling pressures, buckling modes, effects of joint stiffness and bracing on the stability of the dome, and the status of the material prior to buckling.
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GEČYS, Tomas, and Alfonsas DANIŪNAS. "ROTATIONAL STIFFNESS DETERMINATION OF THE SEMI-RIGID TIMBER-STEEL CONNECTION." Journal of Civil Engineering and Management 23, no. 8 (November 20, 2017): 1021–28. http://dx.doi.org/10.3846/13923730.2017.1374305.

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In this research, the component method implementation for determination of the rotational stiffness of timber-steel connection is shown. Component method is one of the most commonly used methods for determination of the bending moment-rotation relation which later may be used in the practical analysis of the connection. The component method is not widely used for the analysis of the semi-rigid timber connections. There are only several investigations previously done on the component method implementation for the timber connections and most of them are based on only one basic component, i.e. timber compression or glued-in steel rod in tension. This article presents a new investigation of rotational stiffness determination algorithm of the semi-rigid timber-steel connection, which is based on the component method. The component method’s mechanical model of the connection combines all components which have influence on the rotational stiffness of the connection. The analysed timber-steel connection is subjected to pure bending. Stiffness coefficients of the steel part components are determined according to the Eurocode 3: design of steel structures Part 1-8: Design of joints. The timber part components are derived from the full-scale laboratory experiments and finite element modelling results, presented in the previous publications of the authors. The presented rotational stiffness determination results are well in line with the experimental and finite element modelling results, published in the previous publications.
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Dissertations / Theses on the topic "Finite element method. Dowels Timber joints"

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Hetver, Jan. "Studie řešení stability dřevěných konstrukcí." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227215.

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In this work is presented development of computational model of real timber truss in collapse state. The model was solved linearly and geometrically non-linearly and the results were evaluated. The aim was to depict the real behavior of the structure.
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Books on the topic "Finite element method. Dowels Timber joints"

1

Muhunthan, Balasingam. Finite element study of the rehabilitation of faulted Portland Cement Concrete pavements. [Olympia, Wash: Washington State Dept. of Transportation, 1994.

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