Properties of parallel strand lumber from Calcutta bamboo (Dendrocalamus strictus)
Properties of parallel strand lumber from Calcutta bamboo (Dendrocalamus strictus)
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DOI：
10.1007/s00226-010-0308-8
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发表时间：
2011-02-01
影响因子：
3.4
通讯作者：
Kamke, F. A.
中科院分区：
文献类型：
--
作者：
Ahmad, M.;Kamke, F. A.
本研究的目的是分析以加尔各答竹为原料的平行股材（PSL）的物理力学性质。基于在先前的工作中观察到的表面特性（Ahmad和Kamke 2003）和物理和机械特性（Ahmad和Kamke 2005），在实验室中制造并测试了来自加尔各答竹子的原型PSL。测定的物理性质是尺寸稳定性和吸水性。进行的机械测试是在压缩和弯曲。确定了极限应力、比例极限应力和弹性模量，并与美国其他研究人员和制造商生产的几种木材的结构复合材（SCL）进行了比较。生产的PSL也暴露于加速老化过程，以评估其在极端条件下的耐久性。实验室生产的PSL尺寸稳定。机械特性与其他研究中生产的SCL和美国提供的SCL产品相比毫不逊色。发现加速老化过程会降低弯曲强度，但弯曲刚度、压缩强度和刚度没有显着差异。这是一个有前途的迹象加尔各答竹作为原材料的结构复合材料产品的适用性。
The objectives of this work were to analyze the physical and mechanical properties of parallel strand lumber (PSL) made from Calcutta bamboo. Based on the surface characteristics (Ahmad and Kamke 2003) and physical and mechanical properties (Ahmad and Kamke 2005) observed in previous work, a prototype PSL from Calcutta bamboo was manufactured and tested in the laboratory. Physical properties determined were dimensional stability and water absorption. The mechanical tests carried out were in compression and bending. Ultimate stress, stress at proportional limit, and modulus of elasticity were determined and compared to structural composite lumber (SCL) from several timber species produced by other researchers and manufacturers in the United States. The PSL produced was also exposed to accelerated aging process in order to assess its durability under extreme condition. PSL produced in the laboratory was stable in dimension. The mechanical characteristics compare favorably to SCL produced in other studies and SCL products available in the United States. The accelerated aging process was found to reduce the bending strength but no significant difference was detected in bending stiffness, and compression strength and stiffness. This is a promising indication of the suitability of Calcutta bamboo as raw material for structural composite products.