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.

A three dimensional plasticity model for perpendicular to grain cohesive fracture in wood

In English

Författare

Summary, in English

A three dimensional cohesive zone model for perpendicular to grain wood fracture analysis is derived within the framework of plasticity theory and implemented for numerical calculations by the finite element method. The criterion used for strain instability and localization to a fracture plane is according to the orthotropic Tsai-Wu criterion accounting for all six stress components. The after localization plastic softening performance is governed by the three out-of-fracture plane stress and deformation components. The material model is applied to analyses of double cantilever beam specimens and end-notched beams. The results show in particular that stress and strength along grain may significantly affect perpendicular to grain fracture. The two dimensional development of the fracture process zone is also studied as affected by varying material principal directions. (C) 2012 Elsevier Ltd. All rights reserved.

Avdelning/ar

Publiceringsår

2013

Språk

Engelska

Sidor

137-152

Publikation/Tidskrift/Serie

Engineering Fracture Mechanics

Volym

98

Dokumenttyp

Artikel i tidskrift

Förlag

Elsevier

Ämne

  • Mechanical Engineering

Nyckelord

  • Wood
  • Fracture mechanics
  • Cohesive zone modeling
  • Plastic theory
  • Tsai-Wu

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1873-7315