VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • A simple way to improved formulation of FE2 analysis
    Šolinc, Urša ; Korelc, Jože, 1965-
    A new formulation of two-scale FE2 analysis introduces symmetric stretch tensor as strain measure on macro level instead of asymmetric deformation gradient to determine boundary conditions on ... embedded microstructure. This significantly reduces computational cost of boundary conditions related sensitivity analysis of microstructure and with it the evaluation of local macroscopic stress tensors and tangent matrices. Various FE2 formulations with isogeometric and standard finite element microanalysis are tested for consistency, accuracy and numerical efficiency on numerical homogenisation examples. Objective performance comparison of different FE2 formulations is enabled with automation of all procedures in symbolic code generation system AceGen. The results obtained in numerical examples show reduced computational cost of the new FE2 formulation without loss of accuracy and comparable numerical efficiency of higher order isogeometric and standard FE2 formulations.
    Vir: Computational mechanics. - ISSN 0178-7675 (Letn. 56, št. 5, 2015, str. 905-915)
    Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasle
    Leto - 2015
    Jezik - angleški
    COBISS.SI-ID - 7244129
    DOI

vir: Computational mechanics. - ISSN 0178-7675 (Letn. 56, št. 5, 2015, str. 905-915)
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