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C. Jenkel, M. Kaliske, "Numerical Grading of Timber Boards by means of the Finite Element Method", in J. Kruis, Y. Tsompanakis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 263, 2015. doi:10.4203/ccp.108.263

Keywords: knots in timber, finite element meshing, fibres, grain course, flow analogy, strength grading, ductile failure, brittle failure.

Summary

In this paper, timber boards containing knots are analysed by means of the finite element (FE) method. In a fully automatable procedure, global material parameters, such as the global longitudinal elasticity modulus and tensile strength, are determined in three-dimensional simulations on the basis of geometrical data obtained by surface scans. To generate FE models automatically, two meshing procedures are introduced. Based on the FE models, the fibre course is determined numerically using a flow-grain analogy. For comparison, experiments are considered where the global elasticity modulus and the ultimate load have been determined in tensile tests. These tests are simulated for selected boards. Possible failure zones are identified by the application of plasticity models. To determine the ultimate load at tensile loading numerically, cohesive elements are applied.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 108 PROCEEDINGS OF THE FIFTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: J. Kruis, Y. Tsompanakis and B.H.V. Topping Paper 263 Numerical Grading of Timber Boards by means of the Finite Element Method C. Jenkel and M. Kaliske Institute for Structural Analysis, Technische Universität Dresden, Germany doi:10.4203/ccp.108.263 purchase the full-text of this paper Full Bibliographic Reference for this paper C. Jenkel, M. Kaliske, "Numerical Grading of Timber Boards by means of the Finite Element Method", in J. Kruis, Y. Tsompanakis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 263, 2015. doi:10.4203/ccp.108.263 Keywords: knots in timber, finite element meshing, fibres, grain course, flow analogy, strength grading, ductile failure, brittle failure. Summary In this paper, timber boards containing knots are analysed by means of the finite element (FE) method. In a fully automatable procedure, global material parameters, such as the global longitudinal elasticity modulus and tensile strength, are determined in three-dimensional simulations on the basis of geometrical data obtained by surface scans. To generate FE models automatically, two meshing procedures are introduced. Based on the FE models, the fibre course is determined numerically using a flow-grain analogy. For comparison, experiments are considered where the global elasticity modulus and the ultimate load have been determined in tensile tests. These tests are simulated for selected boards. Possible failure zones are identified by the application of plasticity models. To determine the ultimate load at tensile loading numerically, cohesive elements are applied. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £75 +P&P)
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