https://scholars.lib.ntu.edu.tw/handle/123456789/626072
標題: | Grading of softwood lumber using non-destructive techniques | 作者: | Wang S.-Y Chen J.-H MING-JER TSAI Lin C.-J Yang T.-H. |
關鍵字: | Dynamic modulus of elasticity; Machine stress grading; Non-destructive technique; Visual grading | 公開日期: | 2008 | 卷: | 208 | 期: | 1-3 | 起(迄)頁: | 149-158 | 來源出版物: | Journal of Materials Processing Technology | 摘要: | The purpose of this study was to determine the grading and wood properties of the four softwood lumbers using non-destructive techniques. The results indicated that the higher the visual grading, the higher the values of the dynamic modulus of elasticity (DMOE) and modulus of elasticity (MOE) in bending of the lumber. Mechanical grading was more reliable and more efficient than visual grading. The value of the DMOE was slightly higher than that of the MOE, and there were good relationships between the DMOE and MOE of the lumber. Flexural stiffness as determined by the transverse vibration method was found to be the best single predictor of the MOE. © 2008 Elsevier B.V. All rights reserved. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-52949127348&doi=10.1016%2fj.jmatprotec.2007.12.105&partnerID=40&md5=f21de6059f3914cbe0d430de34088e8c https://scholars.lib.ntu.edu.tw/handle/123456789/626072 |
ISSN: | 09240136 | DOI: | 10.1016/j.jmatprotec.2007.12.105 | SDG/關鍵字: | Elastic moduli; Lumber; Nondestructive examination; Softwoods; Dynamic modulus of elasticity; Flexural stiffness; Mechanical grading; Non-destructive technique; Stress grading; Transverse vibration method; Visual grading; Wood properties; Grading; Elasticity; Lumber; Machinery; Softwoods; Stresses; Testing |
顯示於: | 森林環境暨資源學系 |
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