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    Viscoplastic Deformation Analysis and Extrusion Die Design by FEM

    Source: Journal of Applied Mechanics:;1991:;volume( 058 ):;issue: 003::page 644
    Author:
    P. Aravamadhu Balaji
    ,
    T. Sundararajan
    ,
    G. K. Lal
    DOI: 10.1115/1.2897244
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: A viscoplastic model for extrusion is discussed which simultaneously predicts the deformation field, optimal die geometry, and plastic boundaries. The die geometry and plastic boundaries are expressed in terms of chosen trial functions that satisfy certain geometrical and physical constraints. The variational power integral is minimized in the trial plastic domain using FEM technique to determine the deformation field and shape coefficients for the die contour and plastic boundaries. The proposed method is implemented for the optimal design of an axisymmetric streamlined die. The predicted values are in reasonable agreement with the experimental observations and are in conformity with the results published earlier.
    keyword(s): Deformation , Extruding , Finite element methods , Design , Finite element model , Geometry , Shapes AND Functions ,
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      Viscoplastic Deformation Analysis and Extrusion Die Design by FEM

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/107977
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    contributor authorP. Aravamadhu Balaji
    contributor authorT. Sundararajan
    contributor authorG. K. Lal
    date accessioned2017-05-08T23:34:31Z
    date available2017-05-08T23:34:31Z
    date copyrightSeptember, 1991
    date issued1991
    identifier issn0021-8936
    identifier otherJAMCAV-26334#644_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/107977
    description abstractA viscoplastic model for extrusion is discussed which simultaneously predicts the deformation field, optimal die geometry, and plastic boundaries. The die geometry and plastic boundaries are expressed in terms of chosen trial functions that satisfy certain geometrical and physical constraints. The variational power integral is minimized in the trial plastic domain using FEM technique to determine the deformation field and shape coefficients for the die contour and plastic boundaries. The proposed method is implemented for the optimal design of an axisymmetric streamlined die. The predicted values are in reasonable agreement with the experimental observations and are in conformity with the results published earlier.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleViscoplastic Deformation Analysis and Extrusion Die Design by FEM
    typeJournal Paper
    journal volume58
    journal issue3
    journal titleJournal of Applied Mechanics
    identifier doi10.1115/1.2897244
    journal fristpage644
    journal lastpage650
    identifier eissn1528-9036
    keywordsDeformation
    keywordsExtruding
    keywordsFinite element methods
    keywordsDesign
    keywordsFinite element model
    keywordsGeometry
    keywordsShapes AND Functions
    treeJournal of Applied Mechanics:;1991:;volume( 058 ):;issue: 003
    contenttypeFulltext
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