• Medientyp: Sonstige Veröffentlichung; Bericht; E-Book
  • Titel: Quasistatic damage evolution with spatial BV-regularization
  • Beteiligte: Thomas, Marita [Verfasser:in]
  • Erschienen: Berlin : Weierstraß-Institut für Angewandte Analysis und Stochastik, 2011
  • Ausgabe: published Version
  • Sprache: Englisch
  • DOI: https://doi.org/10.34657/3052
  • ISSN: 0946-8633; 0946-8633
  • Schlagwörter: damage evolution with spatial regularization ; [GAMMA]-convergence of rate-independent systems ; functions of bounded variation ; Partial damage ; 0energetic formulation
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  • Beschreibung: An existence result for energetic solutions of rate-independent damage processes is established. We consider a body consisting of a physically linearly elastic material undergoing infinitesimally small deformations and partial damage. In [ThomasMielke10DamageZAMM] an existence result in the small strain setting was obtained under the assumption that the damage variable z satisfies z∈ W1,r(Ω) with r∈(1,∞) for Ω⊂Rd. We now cover the case r=1. The lack of compactness in W1,1(Ω) requires to do the analysis in BV(Ω). This setting allows it to consider damage variables with values in 0,1. We show that such a brittle damage model is obtained as the Γ-limit of functionals of Modica-Mortola type.
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