Webbläsaren som du använder stöds inte av denna webbplats. Alla versioner av Internet Explorer stöds inte längre, av oss eller Microsoft (läs mer här: * https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Var god och använd en modern webbläsare för att ta del av denna webbplats, som t.ex. nyaste versioner av Edge, Chrome, Firefox eller Safari osv.

Fracture analysis of glued laminated timber beams with a hole using a 3D cohesive zone model

In English

Författare

Summary, in English

Introducing a hole in a glued laminated timber (glulam) beam generally results in a significant decrease in load bearing capacity. Global strength is most often limited by perpendicular to grain fracture with crack initiation at hole periphery and crack propagation in the grain direction. Strength analysis and design is far from trivial, which is reflected by the lack of design criteria in contemporary engineering design codes. This paper presents nonlinear 3D FE-analyses of beams with a hole, carried out using a cohesive zone model based on plasticity theory. Results of numerical analyses are compared to experimental tests showing good agreement. Results of a numerical parameter study relating to beam width and growth ring pattern are presented, showing decreasing nominal beam strength with increasing beam width and that the beam strength is affected by the growth ring pattern. Furthermore, some analyses of the influence of different types of initial cracks are presented. (C) 2014 Elsevier Ltd. All rights reserved.

Avdelning/ar

Publiceringsår

2014

Språk

Engelska

Sidor

182-195

Publikation/Tidskrift/Serie

Engineering Fracture Mechanics

Volym

124

Dokumenttyp

Artikel i tidskrift

Förlag

Elsevier

Ämne

  • Mechanical Engineering

Nyckelord

  • Wood
  • Glued laminated timber
  • Hole
  • Fracture
  • Cohesive zone modeling

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1873-7315