Quasi-brittleness of glued laminated timber beams subjected to bending

Lukas Blank, Robert Jockwer, Andrea Frangi, Gerhard Fink

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

The bending strength of glued laminated timber is size dependent. It is well known that one reason is the scatter of the material properties due to the natural growth characteristics of timber which leads to a size effect according to the Weibull weakest link theory. In this paper, it is demonstrated that glued laminated timber also exhibits the size effect associated with a quasi-brittle material behavior. Experimental tests on glued laminated timber beams in different sizes are compared with finite element simulations. The specific distribution of weak links in each beam was included in the simulations. In this way, the Weibull type size effect is automatically taken into account. The simulations which consider quasi-brittleness through the constitutive law were able to predict well the outcome of the experiments over the full range of beam sizes.
Original languageEnglish
Title of host publicationInsights and Innovations in Structural Engineering, Mechanics and Computation
Subtitle of host publicationProceedings of the Sixth International Conference on Structural Engineering, Mechanics and Computation, Cape Town, South Africa, 5-7 September 2016
EditorsAlphose Zingoni
Pages1714-1719
Publication statusPublished - 2016
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Structural Engineering, Mechanics and Computation - Cape Town, South Africa
Duration: 5 Sep 20167 Sep 2016
Conference number: 5

Conference

ConferenceInternational Conference on Structural Engineering, Mechanics and Computation
Abbreviated titleSEMC
CountrySouth Africa
CityCape Town
Period05/09/201607/09/2016

Fingerprint Dive into the research topics of 'Quasi-brittleness of glued laminated timber beams subjected to bending'. Together they form a unique fingerprint.

Cite this