YOKOUCHI YASUTO
| Emeritus Professor etc. | Emeritus Professor |
Researcher Information
Field Of Study
Educational Background
- 1971
The University of Tokyo, 工学系研究科, 機械工学専攻, Japan - 1971
The University of Tokyo, Graduate School, Division of Engineering - 1968
The University of Tokyo, 工学系研究科, 機械工学専攻, Japan - 1968
The University of Tokyo, Graduate School, Division of Engineering - 1965
The University of Electro-Communications, Faculty of Electro-Communications, 通信機械工学科, Japan - 1965
The University of Electro-Communications, Faculty of Electro Communications
Research Activity Information
MISC
- Rigid-plastic hybrid element analyses of the plane strain upsetting
YM Guo; K Nakanishi; Y Yokouchi
Nov. 2002, NUMERICAL METHODS FOR PARTIAL DIFFERENTIAL EQUATIONS, 18, 6, 726-737, English, 0749-159X, WOS:000178794200003 - アダプティブメッシュ法に基づく可変節点数要素の弾塑性有限要素解析への適用
Sep. 2002, 理研シンポジウムものつくり情報技術統合化研究（第２回）, 71-76 - 可変節点数要素の弾塑性有限要素解析への適用（第２報）
May 2002, 平成14年度塑性加工春季講演会講演論文集, 143-144 - 可変節点数要素の弾塑性有限要素解析への適用
Oct. 2001, 第52回塑性加工 連合講演会講演論文集, 235-236 - フランジしわのＦＥＭ解析
Jul. 2001, 日本塑性加工学会塑性力学分科会，板材のし わ・スプリングバック問題における塑性力学的アプロ－チ資料集, 1-8 - Five-node Shell Element for Transition Region from a Fine to a Coarse Mesh, Simulation of Materials Processing; Theory, Methods and Applications (Ed. K. Mori)
Jun. 2001, Proc. 7th Int. Conferemce on Numerical Methods in Industrial Forming Process -- NUMIFORM 2001, Toyohashi, Japan, Balkema Publishers, 645-650 - Five-node Shell Element for Transition Region from a Fine to a Coarse Mesh, Simulation of Materials Processing; Theory, Methods and Applications (Ed. K. Mori)
Jun. 2001, Proc. 7th Int. Conferemce on Numerical Methods in Industrial Forming Process -- NUMIFORM 2001, Toyohashi, Japan, Balkema Publishers, 645-650 - ソリッド縮退シェル要素を用いた有限要素解析における粗密分割 の継目の考察
May 2001, 日本計算工学会論文集，日本計算工学会, 3, 271-276 - 有限要素解析における粗密分割の継目のための５節点シェル要素
Nov. 2000, 第51回塑性加工連合講演会講演論文集, 195-196 - 分岐の考慮の有無によるＦＥ解析結果のちがい
Nov. 2000, 第51回塑性加工連合講演会講演論文集, 193-194 - 薄板変形解析における要素分割様式による結果の比較
Nov. 2000, 第51回塑性加工連合講演会講演論文集, 191-192 - 粗密分割の継目のための５節点シェル要素
Sep. 2000, 非線形解析プログラム研究会精度向上分科会, 1-2 - Hot backward extrusion comparative analyses by a combined finite element method
YM Guo; Y Yokouchi; K Nakanishi
Sep. 2000, INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 42, 9, 1867-1885, English, 0020-7403, WOS:000087795800010 - 体積弾性・偏差剛塑性有限要素法による熱間鍛造の比較解析
May 2000, 平成12年度塑性加工春季講演会講演論文集, 59-60 - 薄鋼板における二次分岐変形の解析
May 2000, 平成12年度塑性加工春季講演会講演論文集, 27-28 - 有限要素解析における粗密分割領域の継目の考察
Apr. 2000, 塑性と加工, 41, 471, 395-399 - ヒンジ-コニカル要素を用いた軸対称殻の弾塑性解析
Feb. 2000, 塑性と加工, 41, 469, 156-160 - 面内２軸荷重を受ける薄板の分岐解析
Oct. 1999, 第50回塑性加工連合講演会講演論文集, 195-196 - 選択低減積分を施した可変節点数要素の塑性加工問題への適用
Oct. 1999, 第50回塑性加工連合講演会講演論文集, 131-132 - Hot forging simulation by the volumetrically elastic and deviatorically rigid-plastic finite-element method
Y. M. Guo; K. Nakanishi; Y. Yokouchi
Elsevier Science S.A., 19 May 1999, Journal of Materials Processing Technology, 89-90, 111-116, English, 0924-0136, 80011112785, 0345533944 - 静的陰解法について
Jan. 1999, 第4回板成形シミュレーション利用技術研究会, 1-14 - A comparison between the volumetrically elastic and deviatorically rigid-plastic FEM and the penalty rigid-plastic FEM
YM Guo; Y Yokouchi; K Nakanishi; S Kamitani
Jan. 1999, COMMUNICATIONS IN NUMERICAL METHODS IN ENGINEERING, 15, 1, 43-56, English, 1069-8299, WOS:000078409500005 - 剛塑性有限要素法の収束生
Sep. 1998, 第61回塑性力学分科会, 1-6 - 非線形有限要素法
Dec. 1994, コロナ社 - 体積弾性・偏差剛塑性有限要素法
Aug. 1994, 日本塑性加工学会、塑性と加工, 35, 403, 965-970 - Adaptive load incrementation algorithm during a process of local unloading in the elastic-plastic finite element analysis.
YOKOUCHI Yasuto; NAKAMURA Motoichi
There are two approaches in the incremental finite element analysis of elastic-plastic problems; one takes an explicit scheme using forward Euler integration formula with adaptive load incrementation, the so-called rmin method, and another implicit scheme with iterative procedures such as the Newton method. This paper discusses an algorithm of determining incremental step size in the former approach. A new additional restriction is proposed for the determination of the loading factor rmin when unloading takes place. A concept of admissible error is introduced where errors in stress increments are defined as the difference between one computed by assuming the elastic-plastic constitutive relation and the other computed by assuming the elastic relation. The error norm should be restricted within specified value. Numerical examples are demonstrated to show that the algorithm is reasonable., The Japan Society of Mechanical Engineers, Dec. 1990, Transactions of the Japan Society of Mechanical Engineers Series B, 56, 532, 2437-2442, Japanese, 0387-5008, 110002373265, AN0018742X
