Fracture analysis of perpendicular to grain loaded dowel-type connections using a 3D cohesive zone model
Source abstract
Abstract
The strength and fracture behavior of dowel-type connections with stiff dowels loaded perpendicular to grain was studied by nonlinear 3D finite element (FE)-analysis. A cohesive zone model was used to model the perpendicular to grain fracture of the wood, i.e., failure by wood splitting along the grain. The influence of load eccentricity and dowel-to-loaded-edge distance was studied for a plate type of geometry loaded in tension and for a simply supported beam loaded in bending. The strength found from the FE-analysis is compared to strength from experimental tests with centric loading, showing overall good agreement. Numerical results for centric loading are further compared to strength predictions according to the linear elastic fracture mechanics (LEFM)-based design criterion present in Eurocode 5 (EN 1995-1-1:2004). The comparison showed good agreement regarding the relative influence of connection geometry, but the design criterion appears, however, to yield unconservative strength predictions. The results of the FE-analyses regarding dowel load eccentricity showed that such loading conditions may yield significantly lower strengths compared to centric loading. An approximate engineering method to account for the strength reduction due to load eccentricity is, furthermore, presented.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Mechanical Behavior of Composites · Wood Treatment and Properties · Structural Load-Bearing Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (40)
Show source-provided references
1. Austrell P. E. · 2004
2. Ballerini M. · 1999
3. Ballerini M. · 2004
4. Ballerini M. · 2003
5. Berbom Dahl, K. (2009) Mechanical properties of clear wood from Norway spruce. Doctoral thesis, Department of Structural Engineering, Norwegian University of Science and Technology, Norway.
6. Boström, L. (1992) Method for determination of the softening behaviour of wood and the applicability of a nonlinear fracture mechanics model. Doctoral thesis, Report TVBM-1012, Division of Building Materials, Lund University, Sweden.
7. Crisfield M. A. · 1991
8. Danielsson, H. (2013a) Perpendicular to grain fracture analysis of wooden structural elements – Models and applications. Doctoral thesis, Report TVSM-1024, Division of Structural Mechanics, Lund University, Sweden.
9. Danielsson, H. (2013b) Path following solution approaches and integration of constitutive relations for a 3D wood cohesive zone model. Report TVSM-7160, Division of Structural Mechanics, Lund University, Sweden.
10. 10.1016/j.engfracmech.2012.12.00810.1016/j.engfracmech.2012.12.008 ↗
11. 10.1016/0045-7949(87)90144-110.1016/0045-7949(87)90144-1 ↗
12. Dorn, M. (2012) Investigations on the serviceability limit state of dowel-type timber connections. Doctoral thesis, Vienna University of Technology, Austria.
13. 10.1016/j.engstruct.2012.09.01010.1016/j.engstruct.2012.09.010 ↗
14. Ehlbeck J. · 1989
15. Eurocode 5 · 2004
16. Franke B. · 2010
17. 10.1016/j.engstruct.2011.02.04510.1016/j.engstruct.2011.02.045 ↗
18. Gustafsson P. J. · 2001 · 577
19. Jensen J. L. · 2003
20. Jensen J. L. · 2003
21. 10.1016/j.conbuildmat.2012.04.00610.1016/j.conbuildmat.2012.04.006 ↗
22. 10.1016/j.conbuildmat.2012.04.00610.1016/j.conbuildmat.2012.04.006 ↗
23. Larsen H. J. · 1990
24. Larsen H. J. · 2001
25. Leijten A. J. M. · 2001
26. MATLAB (2012) Version R2012b. The MathWorks, Inc. (Natick, MA).
27. 10.1016/j.compstruc.2009.09.00210.1016/j.compstruc.2009.09.002 ↗
28. 10.1016/j.engstruct.2012.03.04710.1016/j.engstruct.2012.03.047 ↗
29. 10.1007/s00107-006-0102-310.1007/s00107-006-0102-3 ↗
30. 10.1016/j.engstruct.2008.11.00110.1016/j.engstruct.2008.11.001 ↗
31. Schoenmakers, J. C. M. (2010) Fracture and failure mechanisms in timber loaded perpendicular to grain by mechanical connections. Doctoral thesis, Eindhoven University of Technology, the Netherlands.
32. 10.1016/j.engstruct.2011.05.01810.1016/j.engstruct.2011.05.018 ↗
33. Serrano E. · 2011
34. Stefansson, F. (2001) Fracture analysis of orthotropic beams – Linear elastic and non-linear methods. Licentiate thesis, Report TVSM-3029, Division of Structural Mechanics, Lund University, Sweden.
35. 10.1177/00219983710050010610.1177/002199837100500106 ↗
36. van der Put T. A. C. M. · 1990
37. 10.1007/s00107-008-0258-010.1007/s00107-008-0258-0 ↗
38. van der Put T. A. C. M. · 2000
39. Wernersson, H. (1994) Fracture characterization of wood adhesive joints. Doctoral thesis, Report TVSM-1006, Division of Structural Mechanics, Lund University, Sweden.
40. Yasumura M. · 1999