材料
Online ISSN : 1880-7488
Print ISSN : 0514-5163
ISSN-L : 0514-5163
論文
スギ・ヒノキ材の半径方向圧縮時における細胞の変形挙動
田井 駿一宮内 康平桐生 智明三好 由華古田 裕三
著者情報
ジャーナル フリー

2016 年 65 巻 5 号 p. 365-370

詳細
抄録

Cell deformation behavior of Japanese cedar (Cryptomeria japonica) and Japanese cypress (Chamaecyparis obtuse) were observed during progress in the radial compression using a scanning electron microscope (SEM). The deformation behavior were defferent between Japanese ceder and Japanese cypress. In Japanese ceder, the early wood cells close to the boundary of the annual ring did not buckle up to 55% of compressing ratio of the annual ring (CR), whereas those of Japanese cypress buckled at 32% of CR. This means the earlywood cells close to the boundary of annual ring of Japanese cypress buckled easier than those of Japanese cedar. The dimensional ratios in radial/tangential dimension (R/T) of uncompressed cells were measured from SEM images, and then were compared with the deformation pattern in each species. A significant correlation were found between CR when the cells buckled at the respective radial position in an annual ring and R/T of the cell at each position. From this, it can be concluded that the compressive deformation behavior of cells was related to the distribution of R/T of the cells in an annual ring.

著者関連情報
© 2016 日本材料学会
前の記事 次の記事
feedback
Top