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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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木材微纤丝角和密度与弹性模量的关系
DOI: 10.3969/j.jssn.1000-2006.2009.04.024, PP. 113-116
Keywords: 白橡,红橡,弹性模量,木材密度,微纤丝角,silviscan
Abstract:
利用silviscan系统测量了美国白橡(quercusalba)与红橡(quercusrubra)不同年轮木材的微纤丝角和密度，并计算得到相应的纵向弹性模量值。红橡木材样品的弹性模量平均值为16.34gpa，高于白橡的(13.11gpa)，并且从心材到边材方向上无明显的变化。而白橡木材样品中由于幼龄材的存在，距离髓心40mm范围内，弹性模量值较低，相应的微纤丝角的值较高；从40mm处到树皮方向变化不显著。沿所测量的径向方向45个年轮范围内，红橡木材样品的微纤丝角明显低于白橡木材样品。
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