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So the authors recognize it very significant to consider the dilatancy characteristics accurately for the analyses of soil engineering problems by Finite Element Methods. However, most of the convensional F. E. Methods adopting incremental stress-strain relationships of isotropic elastic materials (called Isotropic FEM) have not been able to consider dilatancy under multi-axial stress conditions. The authors have been carrying out a series of the studies on the development of nonlinear F.E. Analysis which can consider dilatancy characteristics of soils completely. As the results of these studies, one F.E. Method is proposed in this paper, which adopts incremental stress-strain relationship of anisotropic elasto-plastic material (called Anisotropic FEM). The following conclusions have been drawn after comparison of the numerical results of two F.E. Methods under a few boundary conditions. 1. 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土のダイレタンシー特性を考慮したFEM非線形解析
http://hdl.handle.net/10069/23899
http://hdl.handle.net/10069/23899ffb034a7-093e-4eff-aec7-5796d8c32997
名前 / ファイル | ライセンス | アクション |
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kogaku00_10_08.pdf (769.2 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2010-09-14 | |||||
タイトル | ||||||
タイトル | 土のダイレタンシー特性を考慮したFEM非線形解析 | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
著者 |
棚橋, 由彦
× 棚橋, 由彦× 安部, チサ子× 伊勢田, 哲也 |
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著者別名 | ||||||
姓名 | Tanabashi, Yoshihiko | |||||
著者別名 | ||||||
姓名 | Abe, Chisako | |||||
著者別名 | ||||||
姓名 | Iseda, Tetsuya | |||||
その他のタイトル | ||||||
その他のタイトル | A Nonlinear Finite Element Analysis considering the Dilatancy Characteristics of Soils. | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Dilatancy is one of the most important characteristics of soils, which means volumetric strain due to deviatoric stresses. So the authors recognize it very significant to consider the dilatancy characteristics accurately for the analyses of soil engineering problems by Finite Element Methods. However, most of the convensional F. E. Methods adopting incremental stress-strain relationships of isotropic elastic materials (called Isotropic FEM) have not been able to consider dilatancy under multi-axial stress conditions. The authors have been carrying out a series of the studies on the development of nonlinear F.E. Analysis which can consider dilatancy characteristics of soils completely. As the results of these studies, one F.E. Method is proposed in this paper, which adopts incremental stress-strain relationship of anisotropic elasto-plastic material (called Anisotropic FEM). The following conclusions have been drawn after comparison of the numerical results of two F.E. Methods under a few boundary conditions. 1. Isotropic FEM cannot analyse the dilatancy characteristics of the granular materials, because a stiffness matrix becomes negative-valued when extensional dilatancy is initiated. 2. Anisotropic FEM can analyse the dilatancy characteristics of soils under both multi-axial stress conditions and rotation of the principal stress axis. | |||||
書誌情報 |
長崎大学工学部研究報告 en : Reports of the Faculty of Engineering, Nagasaki University 号 10, p. 57-66, 発行日 1978-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 02860902 | |||||
EISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 18805574 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00178418 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
出版者 | 長崎大学工学部 | |||||
出版者別言語 | ||||||
Faculty of Engineering, Nagasaki University | ||||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 長崎大学工学部研究報告, (10), pp.57-66; 1978 |