• Influence of concrete’s mechanical properties on the cracking of concrete dams 

      Ulfberg, Adrian; Seger, Andreas; Bista, Dipen; Wilde, Marie Westberg; Johansson, Fredrik; Das, Oisik; Sas, Gabriel (Conference object; Konferansebidrag, 2021-09)
      Analytical methods of structural stability assessment of concrete dams are often too simple and thus conservative in their predictions.Without the actual foundation geometry, capacity for some rigid body failure modes are underestimated. This is problematic when deciding upon remediation activities of a dam that is considered unstable and may divert the restoration activities from where they are ...
    • Influence of large-scale asperities on the stability of concrete dams 

      Ulfberg, Adrian; Jaime, Gonzales-Libreros; Das, Oisik; Sas, Gabriel; Andersson, Erik; Bista, Dipen; Arntsen, Bård; Seger, Andreas (Chapter; Bokkapittel, 2022)
      For concrete dams founded on rock, there are only a few options in the common analysis methods to account for large‐scale asperities. However, previous research alludes that they have a significant impact on the behaviour of interfaces under shear. This study investigates the behaviour of concrete dam scale models with varying interface geometries, under a realistic set of eccentric loads. The outcome ...
    • Some Fourier inequalities for orthogonal systems in Lorentz–Zygmund spaces 

      Akishev, Gabdolla; Persson, Lars Erik; Seger, Andreas (Journal article; Peer reviewed, 2019-06-13)
      A number of classical inequalities and convergence results related to Fourier coefficients with respect to unbounded orthogonal systems are generalized and complemented. All results are given in the case of Lorentz–Zygmund spaces.
    • Some new contributions related to structural problems in engineering 

      Seger, Andreas (Doctoral thesis; Doktorgradsavhandling, 2020-06-17)
      <p>The studies in this PhD thesis are focused on some problems of general interest in applied mathematics and engineering sciences. A very broad view is used from contributions which can be directly used for solving some important structural problems in engineering sciences, to contributions which also are of interest in pure mathematics. The main body of the PhD thesis consists of five papers (papers ...