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Modeling of finger-joint failure in glued-laminated timber beams
This paper presents a novel approach to the modeling of failure of finger-joints in glued-laminated beams. A nonlinear strain-softening model with stochastic material parameters was used to characterize the failure zone of the finger-joint. Monte Carlo simulations of the behavior of finger-joint laminations and of laminated beams were performed using the finite-element method. Various lamination thicknesses and beam depths were investigated, as well as the effect of varying the ductility of the finger-joint. Finally, the use of simplified finger-joint material models was also investigated. The results show that the proposed approach can account for such phenomena as the size effect and the laminating effect. Another observation is that the finger-joint ductility has a major influence on the lamination and beam strength, and that a special case of the present modeling approach can be made to coincide with the classic weakest link theory of Weibull.
Modeling of finger-joint failure in glued-laminated timber beams
This paper presents a novel approach to the modeling of failure of finger-joints in glued-laminated beams. A nonlinear strain-softening model with stochastic material parameters was used to characterize the failure zone of the finger-joint. Monte Carlo simulations of the behavior of finger-joint laminations and of laminated beams were performed using the finite-element method. Various lamination thicknesses and beam depths were investigated, as well as the effect of varying the ductility of the finger-joint. Finally, the use of simplified finger-joint material models was also investigated. The results show that the proposed approach can account for such phenomena as the size effect and the laminating effect. Another observation is that the finger-joint ductility has a major influence on the lamination and beam strength, and that a special case of the present modeling approach can be made to coincide with the classic weakest link theory of Weibull.
Modeling of finger-joint failure in glued-laminated timber beams
Serrano, Erik (author) / Gustafsson, Per-Johan (author) / Larsen, Hans Jörgen (author)
2001-01-01
scopus:0035424276
Journal of Structural Engineering; 127(8), pp 914-921 (2001) ; ISSN: 0733-9445
Article (Journal)
Electronic Resource
English
DDC:
690
Modeling of Finger-Joint Failure in Glued-Laminated Timber Beams
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