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C. Gebhardt, M. Kaliske, "Simulation of Timber Fracture by the Extended 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 258, 2015. doi:10.4203/ccp.108.258

Keywords: timber, extended finite element method, fracture mechanics, orthotropic material, crack propagation.

Summary

A novel approach for fracture simulation of wooden structures is introduced. The so-called extended finite element methods allow the mechanical mapping of cracks independent of the underlying mesh. The formulation of crack initiation and propagation is therefore possible without the need to adjust the mesh. The description of wooden material, which necessitates a specific modelling, is incorporated by the use of an orthotropic material formulation aligned with the grains and an appropriate set of cracktip enrichment functions. Crack propagation is implemented by use of a variation of the maximum circumferential stress criterion. The new approach of the maximum load factor criterion is applied to a model of a kinked Glulam beam.

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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 258 Simulation of Timber Fracture by the Extended Finite Element Method C. Gebhardt and M. Kaliske Institute for Structural Analysis, Technische Universität Dresden, Germany doi:10.4203/ccp.108.258 purchase the full-text of this paper Full Bibliographic Reference for this paper C. Gebhardt, M. Kaliske, "Simulation of Timber Fracture by the Extended 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 258, 2015. doi:10.4203/ccp.108.258 Keywords: timber, extended finite element method, fracture mechanics, orthotropic material, crack propagation. Summary A novel approach for fracture simulation of wooden structures is introduced. The so-called extended finite element methods allow the mechanical mapping of cracks independent of the underlying mesh. The formulation of crack initiation and propagation is therefore possible without the need to adjust the mesh. The description of wooden material, which necessitates a specific modelling, is incorporated by the use of an orthotropic material formulation aligned with the grains and an appropriate set of cracktip enrichment functions. Crack propagation is implemented by use of a variation of the maximum circumferential stress criterion. The new approach of the maximum load factor criterion is applied to a model of a kinked Glulam beam. 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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