VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Stress accuracy of parabolic finite elements in contact problems analysis
    Ulbin, Miran ...
    The paper presents the stress distribution errors discovered while analysing contact problems with parabolic finite elements. Usage of parabolic instead of linear finite elements in finite element ... analysis usually results in more accurate stressses. On the other hand usage of parabolic finite elements would result in jagged stress distribution. The jagged stress distribution occurs using either Penalty function method or Lagrange multiplier method. Stress distribution errors were discovered also in analysis where Gauss integration point positions were used for contact analysis. Series of contact problems analysis with special attention to stress accuracy will be presented in the paper. Presented contact problems were analysed with different commercial and non-commercial finite element systems. Obtained results of contact problems analysis with parabolic finite elements will be compared to contact problems analysis with linear finite elements. Results of contact problems analysis using finite elements will then be compared to results obtained with theorethical solution of experimental data. The possible reasons for stress errors will be discussed and some workaround for this problem will be proposed.
    Vir: Computational methods in contact mechanics IV (Str. 223-229)
    Vrsta gradiva - prispevek na konferenci
    Leto - 1999
    Jezik - angleški
    COBISS.SI-ID - 4680214

Vnos na polico