Experimental Determination of R Curves for European Spruce Using DCB Tests

Todorović, Marija; Pavlovic, M.; Glišović, Ivan; Koetsier, M.

doi:10.52202/069179-0055

Experimental Determination of R Curves for European Spruce Using DCB Tests

Title

Experimental Determination of R Curves for European Spruce Using DCB Tests

Author

Todorović, Marija (University of Belgrade)
Pavlovic, M. (TU Delft Steel & Composite Structures)
Glišović, Ivan (University of Belgrade)
Koetsier, M. (TU Delft Steel & Composite Structures)

Contributor

Nyrud, Anders Q. (editor)
Malo, Kjell Arne (editor)
Nore, Kristine (editor)
Alsen, Knut Werner Lindeberg (editor)
Tulebekova, Saule (editor)
Staehr, Efthymia Ratsou (editor)
Bergh, Gabrielle (editor)
Wuyts, Wendy (editor)

Date

2023

Abstract

This paper presents an experimental procedure for obtaining the fracture resistance (R curve) of solid wood specimens made of spruce. Double Cantilever Beam (DCB) tests were performed in order to determine energy release rate vs crack length in Mode I wood fracture (crack opening). Ten wood specimens were loaded using the Universal Testing Machine and force-displacement curves were recorded. The most important parameter - crack length was monitored as the crack propagates using Digital Image Correlation (DIC) method. In order to obtain accurate R curve results, procedure which includes calculating cumulative released energy was employed. The cohesive energy Gf was determined based on the R curves. These results can further be analysed in order to obtain cohesive law for Mode I fracture of wood.

Subject

DCB
DIC
Mode I fracture
R curve
wood

To reference this document use:

http://resolver.tudelft.nl/uuid:a866e645-a745-49e8-bd65-8945001a638f

DOI

https://doi.org/10.52202/069179-0055

Publisher

World Conference on Timber Engineering (WCTE)

ISBN

9781713873297

Source

World Conference on Timber Engineering WCTE 2023: Timber for a Livable Future