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  1. 紀要論文
  2. 琉球大学農学部学術報告
  3. 36号
  1. 部局別インデックス
  2. 農学部

島尻層泥岩の力学挙動に関する数値シミュレーション(農業工学科)

http://hdl.handle.net/20.500.12000/3880
http://hdl.handle.net/20.500.12000/3880
aa1b312b-7c1d-4aa4-9390-727a89919f7f
名前 / ファイル ライセンス アクション
KJ00000161622.pdf KJ00000161622.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 島尻層泥岩の力学挙動に関する数値シミュレーション(農業工学科)
言語 ja
作成者 上野, 正実

× 上野, 正実

ja 上野, 正実

小宮, 康明

× 小宮, 康明

ja 小宮, 康明

Ueno, Masami

× Ueno, Masami

en Ueno, Masami

Komiya, Yasuaki

× Komiya, Yasuaki

en Komiya, Yasuaki

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 本研究では,島尻層泥岩に関する力学的問題の有限要素解析を実行するための準備として,弾塑性構成式の導入とその適用性の確認を行なった。泥岩の低応力状態での塑性挙動等を下降伏面モデルに基づく構成式により表現することを主眼とした。数値シミュレーション結果と実測値の比較によって,三軸圧縮過程についてはかなり精度よく表現できることが明らかとなった。今後,この構成式を用いた有限要素法のプログラムを用いて斜面の安定問題あるいは掘削の問題等を解析し,合理的な設計法の開発を行なう予定である。弾塑性構成式の精度を向上させ泥岩の変形挙動を適切に表現するためには継続的な研究が必要である。
内容記述タイプ Other
内容記述 Some deformation behaviours of the Shimajiri mudstone were simulated by an elastoplastic constitutive equation and the availability of it was checked for appling to finite element methods. An genelarized elastoplastic constitutive equation was formulated based on the subyield surface model which represented smooth transition from elastic state to plastic state. The associated flow rule was adopted to the subyield surface which was a function of current stress and similar to the yield surface in this formulation. Numerical simulations were carried out to some triaxial compression processes. Stress-strain relations predicted by this equation were fit well to measured those. Therefore this equation is able to use the simulation of mechanical behaviours both soil and mudstone only replacing material parameters. Some modifications have to need, however, to represent deformation behaviours of mudstone more accurately.
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/20.500.12000/3880
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 36, p. 99-106
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