Examination of the failure behavior of wood with a short crack in the radial-longitudinal system by single-edge-notched bending test
Examination of the failure behavior of wood with a short crack in the radial-longitudinal system by single-edge-notched bending test
复制标题
单边缺口弯曲试验检验径向-纵向系统中短裂纹木材的破坏行为
DOI：
10.1007/s10086-012-1266-6
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
H
中科院分区：
文献类型：
--
作者：
Nakao;T.;Susanti;C. M. E.;Yoshihara;H
通过对贝壳杉试件进行单边缺口径向-纵向弯曲试验，研究了含短裂纹木材的破坏行为。在试验中，测量了Ⅰ型临界应力强度因子，并通过双悬臂梁试验验证了其有效性。当裂纹长度接近零时，Ⅰ型临界应力强度因子减小。通过裂纹长度修正，得到了包括无裂纹试样在内的较宽裂纹长度范围内的恒定临界应力强度因子。
The failure behavior of wood with a short crack was examined by conducting the single-edge-notched bending tests of a radial-longitudinal system on Agathis specimens. In the test, the mode I critical stress intensity factor was measured, and its validity was checked by the result from double cantilever beam testing method. The mode I critical stress intensity factor decreased when the crack length approached zero. With crack length correction, a constant critical stress intensity factor was obtained over a wide range of crack length including crack-free specimen.