塑性加工における新生面の発生条件について

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  • Criteria of new surface appearance in plastic forming
  • ソセイ カコウ ニ オケル シンセイメン ノ ハッセイ ジョウケン ニ ツイテ

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We know that new surfaces appear commonly in extrusion or indentation as well as cutting or shearing process. If we want to simulate numerically such process by finite element method, it is necessary to intraluce discontinuity of displacements at some nodal points. Then we have to know the criteria of new surface appearance or displacement discontinuity. This report is a memorandunl of ezperimental and theoretical groping to find the criteria.

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