Large diameter fastener in locally reinforced and non-reinforced timber loaded perpendicular to grain

izvorni znanstveni rad

izvorni znanstveni rad

Large diameter fastener in locally reinforced and non-reinforced timber loaded perpendicular to grain

Vrsta prilog u časopisu
Tip izvorni znanstveni rad
Godina 2014
Časopis Engineering structures
Nadređena publikacija Engineering structures
Volumen 74
Stranice str. 256-265
DOI 10.1016/j.engstruct.2014.05.046
ISSN 0141-0296
EISSN 1873-7323
Status objavljeno

Sažetak

The research deals with a 49.0 mm in diameter mechanical fastener to which load perpendicular to grain is applied. The experimental research was divided in two series: the first series was carried out with locally reinforced, and the second with non-reinforced timber specimens. The local reinforcement of timber elements with textile sheets between lamellas in a layer of adhesive was made in the production process. Furthermore, research on finite element models using Abaqus/CEA software package was carried out. UMAT subroutine and cohesive contact between surfaces were used for modelling complex timber mechanical properties and cracks opening. The research results have shown that glass fiber textile placed between lamellas in adhesive layer effectively increases the resistance and splitting capacity of timber joint. Analytical approach has been proposed for predicting the splitting capacity of the reinforced joint.

Ključne riječi

Large diameter fastener; Reinforced timber; Edge distance; Load perpendicular to grain; Splitting strength; Timber joint; Three-dimensional model; Cohesive interaction; UMAT subroutine