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タイトルヨミ
オウリョク オ ウケテイル モクザイ ノ シュウシュク ボウジュン 2 ヒッパリ オウリョク
日本語以外のタイトル
The Shrinking and Swelling of Wood under Stress(2) : Tensile Stress
ファイル
言語
日本語
著者
大草 克己
林 昭三
小迫 恵彦
内容記述(抄録等)
In this work, the effect of dead tensile stress on the shrinking and the swelling of wood was examined and the following results being obtained: the coefficient of shrinking (α) becomes smaller and the coefficient of swelling (β) becomes larger in proportion to the increase of stress. This means that wood became set in the stretched condition caused by the tensile stress.
Generally speaking, if wood is stretched below its proportional limit, it regains the original dimention when the load is removed. However, wood may act as a plastic material under prolonged strain, and as a result a permanent deformation may form, even though the load were never great enough to strain the wood beyond its proportional limit. And hence, we investigated that permanent deformation of wood in moisture-equilibrium state which is caused by the dead tensile stress. The value obtained was negligible even under maximum stress (15kg / <cm>^2) used in the firstly-mentioned examination.
掲載誌名
島根農科大学研究報告
4
開始ページ
93
終了ページ
96
ISSN
05598311
発行日
1956-05-30
NCID
AN00108241
出版者
島根農科大学
出版者別表記
The Shimane Agricultural College
資料タイプ
紀要論文
部局
生物資源科学部
備考
A,Bを含む
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