.png){kind=icon}
.png){kind=icon}
Return
Visual strength grading and bending strength class assignment for Spanish provenance shining gum [Eucalyptus nitens (Deane and Maiden) Maiden]
.png){kind=icon}
PRE
AI
M
D
M
F
P
J
B
G
M
F
M
DOI：10.1515/hf-2025-0083.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
In Spain, Eucalyptus nitens is distributed in the West of the Cantabrian Cornice, especially in the autonomous community of Galicia. Despite being mainly destined for paper pulp, in the last 15 years, eucalypts (Eucalyptus globulus & E. nitens) have been targeted as sawn timber for structural purposes in the country. In Europe, structural timber is graded according to the European standard EN 14081-1:2016+A1:CEN (2019). Timber structures - strength graded structural timber with rectangular cross section - part 1: general requirements (EN 14081-1), either visually or by machine, in order to determine the characteristic mechanical properties, as required by design standards. This study aimed to propose visual strength grading criteria for Spanish shining gum (E. nitens) and to assign its bending strength classes according to European Standards, based on four-point bending tests performed on full-size specimens. Considering the strength, stiffness, and density profile of the tested specimens - with characteristic values of 41.6 MPa for bending strength, 11.60 GPa for modulus of elasticity, and 453 kg/m3 for density- the assignment of the strength class C35 was deemed adequate for the Spanish provenance shining gum timber graded to the MEF visual grade (structural timber from hardwood species). Furthermore, the relationship between global and local moduli of elasticity for the species was analyzed, and a formula was proposed to adjust the global to the local value.
Keywords:
structural timber
visual strength grading
global modulus of elasticity
local modulus of elasticity
mechanical characterization
strength classes
Journal
H
IF:
1.6
Papers:
37
Citations:
4.6K
Organization
Cited Papers