Influence of Temperature and Exposure Duration on the Bending Properties of Oak Wood
Yıl: 2020 Cilt: 22 Sayı: 3 Sayfa Aralığı: 871 - 877 Metin Dili: İngilizce DOI: 10.24011/barofd.792268 İndeks Tarihi: 08-06-2021
Influence of Temperature and Exposure Duration on the Bending Properties of Oak Wood
Öz: Temperature is one of the environmental factors that has influences on the material properties, and its behavior in service life. In this study, effects of temperature and exposure duration on the ultrasound wave velocity (VLL), dynamic Modulus of Elasticity (Edyn), Modulus of Elasticity in bending (MOE), and Modulus of Rupture (MOR) of oak wood were investigated by the transmission of ultrasound longitudinal wave and three points bending tests. According to results, all determined properties were decreased at intensive treatment conditions. For example, VLL, Edyn, MOE, and MOR values were decreased from 4x103 m/s to 3.8x103 m/s, 11174 N/mm2 to 9174 N/mm2, 9811 N/mm2 to 7480 N/mm2, and 99 N/mm2 to 62 N/mm2, respectively. Maximum decreases were 4.7, 16.6, 20.7, 34.1, and 8.7 % at 210 °C 8 h treatments for VLL, Edyn, MOE, MOR, and density, respectively. However, at moderate temperatures up-to 150 °C, properties (except density) were increased (VLL: 12.7%, Edyn: 20.2%, MOE: 18.1%, MOR: 11.7% at 80°C for 8h) with the increase in exposure time within the groups but decreased between the groups. Pearson correlation coefficients between the variables were ranged from 0.71 to 0.93 for Edyn-MOE, 0.47 to 0.85 for Edyn-MOR, 0.02 to 0.75 for Edyn-VLL, 0.71 to 0.88 for MOE-MOR, 0.02 to 0.78 for MOE-VLL, and 0.01 to 0.81 for MOR-VLL. Furthermore, R2 values of the linear regression models for Edyn-MOR, MOE-MOR, and Edyn-MOE were 0.71, 0.76, and 0.9, respectively.
Anahtar Kelime: Sıcaklık ve Maruz Kalma Süresinin Meşe Odunu Eğilme Özelliklerine Etkisi
Öz: Sıcaklık, malzeme özelliklerine ve malzemenin kullanım esnasındaki davranışına etkisi olan çevresel etkenlerden biridir. Bu çalışmada, sıcaklığın ve maruz kalma süresinin ultrasonik dalga hızı (VLL), meşe odununun dinamik elastikiyet modülü (Edyn), eğilmede elastikiyet modülü (MOE) ve eğilme direncine (MOR) etkisi boyuna ultrasonik dalga yayımı ve üç nokta eğilme testi ile ortaya konulmuştur. Sonuçlara göre, tüm özellikler yoğun muamele koşullarında düşmüştür. VLL, Edyn, MOE ve MOR sırası ile 4x103 m/s’den 3.8x103 m/s’ye, 11174 N/mm2’den 9174 N/mm2’ye, 9811 N/mm2’den 7480 N/mm2’ye ve 99 N/mm2’den 62 N/mm2’ye düşmüştür. En yüksek düşüş, % 4.7, 16.6, 20.7, 34.1 ve 8.7 ile 210 °C 8 saat muamele sonucu VLL, Edyn, MOE, MOR ve yoğunluk değerlerinde olmuştur. Fakat yoğunluk harici özellikler, 150 °C’ye kadar olan ılımlı sıcaklıklarda maruz kalma süresinin artışı ile birlikte grup içinde artarken (80 °C ve 8 saat için VLL: %12.7, Edyn: %20.2, MOE: %18.1, MOR: %11.7) gruplar arasında düşmüştür. Değişkenler arasındaki Pearson korelasyon katsayıları Edyn-MOE için 0.71’den 0.93’e, Edyn-MOR için 0.47’den 0.85’e, Edyn-VLL için 0.02’den 0.75’e, MOE-MOR için 0.71’den 0.88’e, MOE-VLL için 0.02’den 0.78’e ve MOR-VLL için 0.01’den 0.81’e kadar yayılmıştır. Ayrıca, Edyn-MOR, MOE-MOR, ve Edyn-MOE doğrusal regresyon modellerinin R2 değerleri sırası ile 0.71, 0.76 ve 0.9 olmuştur.
Anahtar Kelime: Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık
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| APA | yılmaz aydın t, AYDIN E (2020). Influence of Temperature and Exposure Duration on the Bending Properties of Oak Wood. , 871 - 877. 10.24011/barofd.792268 |
| Chicago | yılmaz aydın tuğba,AYDIN Erbil Murat Influence of Temperature and Exposure Duration on the Bending Properties of Oak Wood. (2020): 871 - 877. 10.24011/barofd.792268 |
| MLA | yılmaz aydın tuğba,AYDIN Erbil Murat Influence of Temperature and Exposure Duration on the Bending Properties of Oak Wood. , 2020, ss.871 - 877. 10.24011/barofd.792268 |
| AMA | yılmaz aydın t,AYDIN E Influence of Temperature and Exposure Duration on the Bending Properties of Oak Wood. . 2020; 871 - 877. 10.24011/barofd.792268 |
| Vancouver | yılmaz aydın t,AYDIN E Influence of Temperature and Exposure Duration on the Bending Properties of Oak Wood. . 2020; 871 - 877. 10.24011/barofd.792268 |
| IEEE | yılmaz aydın t,AYDIN E "Influence of Temperature and Exposure Duration on the Bending Properties of Oak Wood." , ss.871 - 877, 2020. 10.24011/barofd.792268 |
| ISNAD | yılmaz aydın, tuğba - AYDIN, Erbil Murat. "Influence of Temperature and Exposure Duration on the Bending Properties of Oak Wood". (2020), 871-877. https://doi.org/10.24011/barofd.792268 |
| APA | yılmaz aydın t, AYDIN E (2020). Influence of Temperature and Exposure Duration on the Bending Properties of Oak Wood. Bartın Orman Fakültesi Dergisi, 22(3), 871 - 877. 10.24011/barofd.792268 |
| Chicago | yılmaz aydın tuğba,AYDIN Erbil Murat Influence of Temperature and Exposure Duration on the Bending Properties of Oak Wood. Bartın Orman Fakültesi Dergisi 22, no.3 (2020): 871 - 877. 10.24011/barofd.792268 |
| MLA | yılmaz aydın tuğba,AYDIN Erbil Murat Influence of Temperature and Exposure Duration on the Bending Properties of Oak Wood. Bartın Orman Fakültesi Dergisi, vol.22, no.3, 2020, ss.871 - 877. 10.24011/barofd.792268 |
| AMA | yılmaz aydın t,AYDIN E Influence of Temperature and Exposure Duration on the Bending Properties of Oak Wood. Bartın Orman Fakültesi Dergisi. 2020; 22(3): 871 - 877. 10.24011/barofd.792268 |
| Vancouver | yılmaz aydın t,AYDIN E Influence of Temperature and Exposure Duration on the Bending Properties of Oak Wood. Bartın Orman Fakültesi Dergisi. 2020; 22(3): 871 - 877. 10.24011/barofd.792268 |
| IEEE | yılmaz aydın t,AYDIN E "Influence of Temperature and Exposure Duration on the Bending Properties of Oak Wood." Bartın Orman Fakültesi Dergisi, 22, ss.871 - 877, 2020. 10.24011/barofd.792268 |
| ISNAD | yılmaz aydın, tuğba - AYDIN, Erbil Murat. "Influence of Temperature and Exposure Duration on the Bending Properties of Oak Wood". Bartın Orman Fakültesi Dergisi 22/3 (2020), 871-877. https://doi.org/10.24011/barofd.792268 |
