Determination of some physical and mechanical properties of heart and sapwood of willow (Salix alba L.)

Musa Kaya; Ramazan Bülbül; Vedat Çavuş

Makale detayları

Determination of some physical and mechanical properties of heart and sapwood of willow (Salix alba L.)

Yazarlar:

Musa Kaya | Ramazan Bülbül | Vedat Çavuş

Yayıncı:

Isparta University of Applied Sciences

Ana Başlıklar:

Ahşap İşleme

Dergi:

Turkish Journal of Forestry Vol.25 Issue 3, pp.302-312

Belge Tipi:

Makale

Yayın Tarihi:

9/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001328813

pISSN:

2149-3898

Anahtar kelimeler:

Özet:

 In this study, density, moisture content, bending strength, modulus of elasticity in bending, dynamic bending strength and compressive strength parallel to fibers were investigated depending on the heartwood and sapwood of willow Salix alba L., a broad-leaved tree. In addition, the determination of screw holding capacity and Brinell hardness values were examined depending on both wood sections and cross-sectional surfaces. According to the results obtained, the static flexural strength of willow wood was 78.54 Nmm² in the highest sapwood, the modulus of elasticity value in bending was 8171.20 Nmm² in the highest sapwood, the dynamic Shock bending strength was 6333 kJm² in the highest sapwood, and the compressive strength parallel to the fibers was 27.30 Nmm² in the highest heartwood. The screw holding capacity was found to be 26.80 Nmm² on the tangential cross-sectional surface of the highest heartwood, and the Brinell hardness value was 29.44 Nmm2 on the cross-sectional surface of the highest heartwood. According to these results, it was determined that there was no significant difference between heartwood and sapwood in static bending strength and modulus of elasticity in bending values of willow wood, but other mechanical strengths examined in this study were found to be significantly different depending on heartwood and sapwood. According to these results, the static bending of willow wood Therefore, in the case of exposure of willow wood to static loads, the wood part is insignificant, but in screwing processes, when exposed to pressure, the cross-sectional surfaces should be taken into account along with the preference of heartwood.

 In this study, density, moisture content, bending strength, modulus of elasticity in bending, dynamic bending strength and compressive strength parallel to fibers were investigated depending on the heartwood and sapwood of willow Salix alba L., a broad-leaved tree. In addition, the determination of screw holding capacity and Brinell hardness values were examined depending on both wood sections and cross-sectional surfaces. According to the results obtained, the static flexural strength of willow wood was 78.54 Nmm² in the highest sapwood, the modulus of elasticity value in bending was 8171.20 Nmm² in the highest sapwood, the dynamic Shock bending strength was 6333 kJm² in the highest sapwood, and the compressive strength parallel to the fibers was 27.30 Nmm² in the highest heartwood. The screw holding capacity was found to be 26.80 Nmm² on the tangential cross-sectional surface of the highest heartwood, and the Brinell hardness value was 29.44 Nmm2 on the cross-sectional surface of the highest heartwood. According to these results, it was determined that there was no significant difference between heartwood and sapwood in static bending strength and modulus of elasticity in bending values of willow wood, but other mechanical strengths examined in this study were found to be significantly different depending on heartwood and sapwood. According to these results, the static bending of willow wood Therefore, in the case of exposure of willow wood to static loads, the wood part is insignificant, but in screwing processes, when exposed to pressure, the cross-sectional surfaces should be taken into account along with the preference of heartwood.

 In this study, density, moisture content, bending strength, modulus of elasticity in bending, dynamic bending strength and compressive strength parallel to fibers were investigated depending on the heartwood and sapwood of willow Salix alba L., a broad-leaved tree. In addition, the determination of screw holding capacity and Brinell hardness values were examined depending on both wood sections and cross-sectional surfaces. According to the results obtained, the static flexural strength of willow wood was 78.54 Nmm² in the highest sapwood, the modulus of elasticity value in bending was 8171.20 Nmm² in the highest sapwood, the dynamic Shock bending strength was 6333 kJm² in the highest sapwood, and the compressive strength parallel to the fibers was 27.30 Nmm² in the highest heartwood. The screw holding capacity was found to be 26.80 Nmm² on the tangential cross-sectional surface of the highest heartwood, and the Brinell hardness value was 29.44 Nmm2 on the cross-sectional surface of the highest heartwood. According to these results, it was determined that there was no significant difference between heartwood and sapwood in static bending strength and modulus of elasticity in bending values of willow wood, but other mechanical strengths examined in this study were found to be significantly different depending on heartwood and sapwood. According to these results, the static bending of willow wood Therefore, in the case of exposure of willow wood to static loads, the wood part is insignificant, but in screwing processes, when exposed to pressure, the cross-sectional surfaces should be taken into account along with the preference of heartwood.

 Yapılan çalışmada, geniş yapraklı bir ağaç olan söğüt Salix alba L. odununun öz ve diri odun kısımlarına bağlı olarak yoğunluk değeri, rutubet oranı, eğilme direnci, eğilmede elastikiyet modülü, dinamik eğilme direnci ve lifler paralel basınç dirençleri araştırılmıştır. Ayrıca vida tutma kapasitesi ile Brinell sertlik değerlerinin tespiti ise hem odun kısımlarına ve hem de kesit yüzeylerine bağlı olarak incelenmiştir. Elde edilen sonuçlara göre söğüt odununun statik eğilme direnci, en yüksek diri odunda 78,54 Nmm², eğilmede elastikiyet modülü değeri en yüksek diri odunda 8171,20 Nmm², dinamik Şok eğilme direnci, en yüksek diri odun kısmında 63,33 kJm², liflere paralel basınç direnci ise en yüksek öz odun kısmında 27,30 Nmm² olarak gerçekleşmiştir. Vida tutma kapasitesi ise en yüksek öz odunun teğet kesit yüzeyinde 26,80 Nmm² olduğu, Brinell sertlik değerinin ise en yüksek öz oduna ait enine kesit yüzeyinde 29,44 Nmm2 olduğu tespit edilmiştir. Elde edilen bu sonuçlara göre söğüt odununun statik eğilme direnci ve eğilmede elastikiyet modülü değerlerinde öz ve diri odun arasında anlamlı bir farkın olmadığı, ancak yapılan bu çalışmada; incelenen diğer mekanik dirençlerin öz ve diri oduna bağlı olarak anlamlı düzeyde farklı oldukları tespit edilmiştir. Dolayısıyla söğüt odununun statik yüklere maruziyeti durumunda, odun kısmının önemsiz olduğu, fakat vidalama işlemlerinde, basınca maruz kaldığında öz odunun tercih edilmesi ile birlikte kesit yüzeylerinin de dikkate alınması gerekmektedir.

Makale detayları

Determination of some physical and mechanical properties of heart and sapwood of willow (Salix alba L.)

Yazarlar:

Musa Kaya | Ramazan Bülbül | Vedat Çavuş

Yayıncı:

Isparta University of Applied Sciences

Ana Başlıklar:

Ahşap İşleme

Dergi:

Turkish Journal of Forestry Vol.25 Issue 3, pp.302-312

Belge Tipi:

Makale

Yayın Tarihi:

9/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001328813

pISSN:

2149-3898

Cross-sectional surfaces

Mechanical properties

Heartwood and sapwood

Willow woodKesit yüzeyler

Mekanik özellikler

Öz ve diri odun

Söğüt odunu

Sayı

Makale detayları

Yazarlar: Musa Kaya | Ramazan Bülbül | Vedat Çavuş

Yayıncı: Isparta University of Applied Sciences

Ana Başlıklar: Ahşap İşleme

Dergi: Turkish Journal of Forestry Vol.25 Issue 3, pp.302-312

Belge Tipi: Makale

Yayın Tarihi: 9/2024

Belge Dili: Türkçe

Document ID (Org No.): 2001328813

pISSN: 2149-3898

Sayı

Yazarlar:

Musa Kaya | Ramazan Bülbül | Vedat Çavuş

Yayıncı:

Isparta University of Applied Sciences

Ana Başlıklar:

Ahşap İşleme

Dergi:

Turkish Journal of Forestry Vol.25 Issue 3, pp.302-312

Belge Tipi:

Makale

Yayın Tarihi:

9/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001328813

pISSN:

2149-3898