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A probabilistic fracture mechanics method and strength analysis of glulam beams with holes

Danielsson, Henrik LU and Gustafsson, Per-Johan LU (2011) In European Journal of Wood and Wood Products 69(3). p.407-419
Abstract
A probabilistic fracture mechanics method is presented and applied to glulam beams with holes. The method is based on a combination of Weibull weakest link theory and a mean stress method which is a generalization of linear elastic fracture mechanics. Combining these two methods means that the global strength will be governed by both fracture energy and material strength and also that the stochastic nature of the material properties are taken into account. The probabilistic fracture mechanics method is evaluated by comparison to experimental test results. The method shows good ability to predict strength, with the exception of very small beams where the capacity is overestimated. The comparison to experimental tests deals also with other... (More)
A probabilistic fracture mechanics method is presented and applied to glulam beams with holes. The method is based on a combination of Weibull weakest link theory and a mean stress method which is a generalization of linear elastic fracture mechanics. Combining these two methods means that the global strength will be governed by both fracture energy and material strength and also that the stochastic nature of the material properties are taken into account. The probabilistic fracture mechanics method is evaluated by comparison to experimental test results. The method shows good ability to predict strength, with the exception of very small beams where the capacity is overestimated. The comparison to experimental tests deals also with other methods for strength analysis including code design methods. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
European Journal of Wood and Wood Products
volume
69
issue
3
pages
407 - 419
publisher
Springer
external identifiers
  • wos:000292554200009
  • scopus:79960379679
ISSN
0018-3768
DOI
10.1007/s00107-010-0475-1
language
English
LU publication?
yes
id
a224e904-ce31-4dec-b288-eb77e0796ee9 (old id 2029079)
date added to LUP
2011-07-26 13:40:25
date last changed
2017-02-12 03:22:00
@article{a224e904-ce31-4dec-b288-eb77e0796ee9,
  abstract     = {A probabilistic fracture mechanics method is presented and applied to glulam beams with holes. The method is based on a combination of Weibull weakest link theory and a mean stress method which is a generalization of linear elastic fracture mechanics. Combining these two methods means that the global strength will be governed by both fracture energy and material strength and also that the stochastic nature of the material properties are taken into account. The probabilistic fracture mechanics method is evaluated by comparison to experimental test results. The method shows good ability to predict strength, with the exception of very small beams where the capacity is overestimated. The comparison to experimental tests deals also with other methods for strength analysis including code design methods.},
  author       = {Danielsson, Henrik and Gustafsson, Per-Johan},
  issn         = {0018-3768},
  language     = {eng},
  number       = {3},
  pages        = {407--419},
  publisher    = {Springer},
  series       = {European Journal of Wood and Wood Products},
  title        = {A probabilistic fracture mechanics method and strength analysis of glulam beams with holes},
  url          = {http://dx.doi.org/10.1007/s00107-010-0475-1},
  volume       = {69},
  year         = {2011},
}