COMPARATIVE STUDY OF DESTRUCTIVE, NONDESTRUCTIVE, AND NUMERICAL METHODS ON THE DETERMINATION OF MOISTURE-DEPENDENT SHEAR MODULI OF CALABRIAN PINE
Küçük Resim Yok
Tarih
2022
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Amer Soc Nondestructive Test
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, the moisture-dependent shear moduli of Calabrian pine were determined by a 45 degrees off-axis compression test, and ultrasonic measurements were performed to determine the effectiveness of the nondestructive method for shear modulus prediction. Also, finite element modeling and analysis was performed to compare the results with static stress-strain curves within the linear elastic region. Ultrasonic transverse wave velocities in longitudinal-radial (LR), longitudinal-tangential (LT), and radial-tangential (RT) planes decreased from 1447 to 1368, 1342 to 1264, and 682 to 642 m/s with an increase in relative humidity (RH) from 45% to 85%, respectively. Static and dynamic shear modulus in LR, LT, and RT planes decreased from 1054 to 933, 905 to 825, and 230 to 210 N/mm(2), and 1141 to 1065, 982 to 909, and 254 to 235 N/mm(2) when relative humidity increased from 45% to 85%, respectively. The influence of the moisture content on the transverse velocity and moduli was statistically significant. The coefficient of determination between the dynamic and static shear moduli ranged from 0.77 to 0.96.
Açıklama
Anahtar Kelimeler
Calabrian Pine; Off-Axis Compression Test; Ultrasonic Testing; Finite Element Analysis, Bending Properties; Elastic-Constants; Wood; Prediction
Kaynak
Materials Evaluation
WoS Q Değeri
Q4
Scopus Q Değeri
Cilt
80
Sayı
5
