Građevinar, Vol. 71 No. 02., 2019.
Pregledni rad
https://doi.org/10.14256/JCE.2498.2018
Adjustments of dynamic MoE on referent moisture content of wood and temperature in grading of small-sized samples
Adriana Bjelanović
; University of Rijeka, Faculty of Civil Engineering
Tomislav Franković
; University of Rijeka, Faculty of Civil Engineering
Ivana Štimac Grandić
orcid.org/0000-0003-3643-7848
; University of Rijeka, Faculty of Civil Engineering
Sažetak
Mathematical dependences are derived for non-destructive testing (NDT) and destructive testing (DT) of three timber sets, each with six beams made of soft and hard structural timber. Very strong correlations were established between elastic moduli (e-moduli) determined by non-destructive testing, from dynamic ultrasound testing with direct propagation and static testing to bending action, and the correlation of e-moduli with bending strengths. The effects of adjustment of NDT results to reference values of moisture and temperature, and statistical significance of regression parameters, were evaluated from the standpoint of use in the initial classification of a small number of samples.
Ključne riječi
structural timber; combined tests; referent moisture content; direct ultrasound propagation
Hrčak ID:
217893
URI
Datum izdavanja:
13.3.2019.
Posjeta: 1.138 *