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Modeling of finger-joint failure in glued-laminated timber beams

Serrano, Erik LU ; Gustafsson, Per-Johan LU and Larsen, Hans Jörgen LU (2001) In Journal of Structural Engineering 127(8). p.914-921
Abstract
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... (More)
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. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Structural Engineering
volume
127
issue
8
pages
914 - 921
publisher
American Society of Civil Engineers (ASCE)
external identifiers
  • scopus:0035424276
ISSN
0733-9445
DOI
10.1061/(ASCE)0733-9445(2001)127:8(914)
language
English
LU publication?
yes
id
0f32de1f-38ba-4a1a-a692-cab47d118084 (old id 4774224)
date added to LUP
2014-11-10 10:57:48
date last changed
2018-04-01 04:01:59
@article{0f32de1f-38ba-4a1a-a692-cab47d118084,
  abstract     = {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.},
  author       = {Serrano, Erik and Gustafsson, Per-Johan and Larsen, Hans Jörgen},
  issn         = {0733-9445},
  language     = {eng},
  number       = {8},
  pages        = {914--921},
  publisher    = {American Society of Civil Engineers (ASCE)},
  series       = {Journal of Structural Engineering},
  title        = {Modeling of finger-joint failure in glued-laminated timber beams},
  url          = {http://dx.doi.org/10.1061/(ASCE)0733-9445(2001)127:8(914)},
  volume       = {127},
  year         = {2001},
}