Examination of the failure behaviour of wood with a short crack in the tangential-radial system by single-edge-notched bending test
Examination of the failure behaviour of wood with a short crack in the tangential-radial system by single-edge-notched bending test
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单边缺口弯曲试验检验切向-径向系统中短裂纹木材的破坏行为
DOI：
10.1016/j.engfracmech.2010.05.019
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
Yoshihara H
中科院分区：
文献类型：
--
作者：
Susanti C. M. E.;Nakao T.;Yoshihara H
对 agathis 样品进行切向-径向系统的单边缺口试验，以分析短裂纹木材的破坏行为。测量了不同裂纹长度试件的名义弯曲强度和I型临界应力强度因子，并考察了裂纹长度对这些性能的影响。即使裂纹非常短，有裂纹试样的标称弯曲强度也明显低于无裂纹试样。这一发现表明断裂力学理论对于分析具有极短裂纹的木材的破坏行为至关重要。然而，I 型临界应力强度因子仍然取决于裂纹长度。当考虑裂纹尖端处的断裂过程区时，可以有效地预测临界强度因子。
Single-edge-notched tests of a tangential–radial system were conducted on agathis specimens to analyze the failure behaviour of wood with a short crack. The nominal bending strength and mode I critical stress intensity factors of the specimens with various crack lengths were measured, and the influence of the crack length on these properties was examined. The nominal bending strength of the cracked specimens was significantly lower than that of a crack-free specimen, even when the crack was extremely short. This finding suggests that the fracture mechanics theory is essential for analyzing the failure behaviour of wood with a very short crack. However, the mode I critical stress intensity factor still depended on the crack length. When considering the fracture process zone developing at the crack tip, the critical intensity factor could be predicted effectively.
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DOI：
10.1098/rspa.1985.0034
发表时间：
1985-01-01
影响因子：
--
作者：
ASHBY, MF;EASTERLING, KE;MAITI, SK
通讯作者：
MAITI, SK
I型分层
DOI：
10.1016/s1566-1369(01)80038-8
发表时间：
2001
期刊：
European Structural Integrity Society
影响因子：
--
作者：
A. Brunner;B. Blackman;P. Davies
通讯作者：
P. Davies
水分解吸过程中木材的断裂模式
影响因子：
2.4
作者：
Liyu Wang;Guang;Zhen Lu
通讯作者：
Zhen Lu
DOI：
--
发表时间：
1965-12
期刊：
--
影响因子：
--
作者：
B. Gross;J. Srawley
通讯作者：
B. Gross;J. Srawley
正交各向异性材料的断裂韧性研究
影响因子：
5.4
作者：
L. Le;H. McCallion
通讯作者：
H. McCallion