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  1. 紀要論文
  2. 琉球大学農学部学術報告
  3. 35号
  1. 部局別インデックス
  2. 農学部

破壊した木材の細胞の変形 : 第 3 報 破壊応力以下の圧縮応力で生じる Slip plane(林学科)

http://hdl.handle.net/20.500.12000/3896
http://hdl.handle.net/20.500.12000/3896
c10bf2ab-7eaa-45e8-ad2c-ea8dd1ac3603
名前 / ファイル ライセンス アクション
KJ00000161599.pdf KJ00000161599.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2008-02-14
タイトル
タイトル 破壊した木材の細胞の変形 : 第 3 報 破壊応力以下の圧縮応力で生じる Slip plane(林学科)
言語 ja
作成者 林, 弘也

× 林, 弘也

ja 林, 弘也

大浦, 正嗣

× 大浦, 正嗣

ja 大浦, 正嗣

Hayashi, Hiroya

× Hayashi, Hiroya

en Hayashi, Hiroya

Ooura, Masashi

× Ooura, Masashi

en Ooura, Masashi

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
内容記述
内容記述タイプ Other
内容記述 スギ材をサンプルに圧縮荷重を負荷した試験片に生じたSlip planeを偏光顕微鏡で検出し, 負荷荷重と材の構造との関係を検討して次の結果を得た。1,Slip planeは弾性領域では早材部の仮道管壁に多く発生するが, 塑性領域では晩材部の仮道管壁に多く発生する。2,切線断面の早材部と放射断面の晩材部は弾性領域では放射組織に接する仮道管壁にのみSlip planeを生じ, 塑性領域ではその他の仮道管壁にもSlip planeが認められた。3,Slip planeはいずれの荷重レベルでも放射断面よりも切線断面に多く発生した。4,単壁型のSlip planeは両壁型のSlip planeよりも低い荷重レベルで発生した。5,Slip planeの発生の位置は断面や材部によって同一荷重レベルでも異なる。
内容記述タイプ Other
内容記述 A slip plane was a first change of mechanical faiulre in wood with compression stress. The relationship between occurrence of a slip plane and stress would give fundamental informations on the failure process of wood. In this article, it was discusseed the relationship between the type, the position, number of a slip plane and stress. It was used a polarized microscope to detect slip planes of SUGI wood (Cryptomeria japonica) and the obtained results may be summarized as follows. 1. In the elastic range of wood, a compression stress produced slip planes more frequent in early wood than in late wood. In the plastic range, a compression stress produced slip planes more frequent in late wood than in early wood. 2. At early wood in tangential section and late wood in radial section, a slip plane was produced at the tracheid walls contact with a ray in elastic range. But in plastic range, a slip plane was produced at tracheid walls in contact with a ray and out of contact with a ray. 3. A slip plane of late wood tracheid was produced more frequent in tangential section than in radial section. 4. A slip plane of single wall type was produced at lower stress level then a slip plane of double wall type. 5. At same stress level, the location and the number of a slip plane varied with a section and a position in one growth ring.
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学農学部
言語
言語 jpn
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/3896
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0370-4246
収録物識別子タイプ NCID
収録物識別子 AN00250548
収録物名
言語 ja
収録物名 琉球大学農学部学術報告
書誌情報
号 35, p. 93-100
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