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Finite Element's Post-processing Of Microstructure For Polycrystalline Materials Owing To The ABAQUS Material Studies

Posted on:2009-11-12Degree:MasterType:Thesis
Country:ChinaCandidate:Y Z LiuFull Text:PDF
GTID:2178360245956847Subject:Materials Processing Engineering
Abstract/Summary:PDF Full Text Request
Microstructure finite element method calculates the figure material the main body of a paper has been introduced being used for polycrystal with analytical post-processing software FEPost-processing , the "representative microcosmic framework of organization volume element "(RVE) technology mounts building-up, is a software's turn to take the figure material that the Voronoi algorithm generates as suject, finite element method to analyse software ABAQUS being the platform secretly scheming against, correct the data base taking node as basis output, the appropriate algorithm having applied transits to the data base form taking element as basis, by judging that crystal particle belonged to by element adopt the volume weighting to handle method averagely one by one to element information later in inside of crystal particle, Have accomplished the quantitative analysis to loading last the material inside variable thereby on careful monotonic dimension , have realized and the result Visualization. The contents are as followings:In the process of the microcosmic framework of organization analysing and handling two-dimensional state to go down polycrystal, waiting for the document handling is to take node as the data report that the basis exports , it divides the node coordinate and node strain two node documents that the independent document, adopt to combine to handle conversion for one includes the coordinate and strain; Seek finite element method element area and their arithmetic mean strain make both multiply such that accumulating together; Ask the crystal particle area and the shape judging a crystal particle to examine relative crystal particle broadside location; Judge that which crystal particle the element belongs to? The strain to internal element of crystal particle assumes area weighted the average area strain getting a crystal particle averagely; require that strain value handles Visualization with convenient crystal particle strain again to the crystal particle according to the colouration.Total microcosmic framework of organization treatment train of thought and means in the process of the microcosmic framework of organization analysing and handling three-dimensional state to go down polycrystal, to a certain extent, having inherited and developing flat surface state to go down polycrystal. But in the process of treatment still necessaries face 3-D state lower data-out report proper inherent complexity, node 3-D thinking of coordinate nature, polyhedral crystal particle, two kind shape core (side shape core and body configuration core and crystal inside strain switch over to be volume weighting average form and so on. Node information fuse, demand element volume and arithmetic mean strain and make both multiply product, secretly scheme against crystal particle volume and judge crystal particle body configuration core relatively that crystal particle all side location, judge element belong to, face to face crystal particle inside element strain work volume weighting average crystal particle average strain and in the light of colouration request face to face crystal particle strain value reprocessing use convenient crystal particle strain Visualization and so on process.Polycrystal figure material is used for various type polycrystal in secretly scheme against and analytical post-processing of fine structure finite element method software FEPost-processing , the three-dimensional space to already designing exploitation base heterogeneity material the fine structure Mechanics function forecast has provided the parallel basis appraising an implement.
Keywords/Search Tags:polycrystalline material microstructure, RVE, finite element's analysis, OpenGL, Software of FEPost-processing
PDF Full Text Request
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