• Fracture and fragmentation of blast-loaded laminated glass: An experimental and numerical study 

      Osnes, Karoline; Holmen, Jens Kristian; Hopperstad, Odd Sture; Børvik, Tore (Journal article; Peer reviewed, 2019)
      In this study, we use the explicit finite element method in combination with higher order elements and 3D node splitting to simulate fracture and fragmentation of blast-loaded laminated glass. Node splitting is a modelling ...
    • Modeling of windshields subjected to impact loading 

      Grue, Tormod; Kjernlie, Simen (Master thesis, 2018)
      Modern windshields are made of laminated glass, which consists of two glass panes bonded together with a polymer interlayer. The interlayer improves performance in many areas compared to monolithic glass. The post-fracture ...
    • Modelling of window glasses exposed to blast loading 

      Kolsaker, Mathias Richter; Bratsberg, Ola Sesseng (Master thesis, 2017)
      Flying glass fragments are one of the main causes of casualties and injuries during terror attacks with explosives, due to fragments shooting through the air. A common way to increase the blast security in windows is to ...
    • Monolithic and laminated glass under extreme loading conditions: Experiments, modelling and simulations 

      Osnes, Karoline (Doctoral theses at NTNU;2019:304, Doctoral thesis, 2019)
      Design of glass components has become more challenging over the past few decades, owing to the increased use of glass as a structural material. When a structure is required to withstand extreme loading, such as blast or ...
    • Numerical Implementation of Brittle Failure Model for Glass 

      Næss, Nora Storebø (Master thesis, 2017)
      This thesis is concerned with a strength model for float glass. Failure of glass is usually initiated from surface flaws and the glass is reckoned as failed with the first failing flaw. The model implements a flaw map over ...
    • On the dynamic response of laminated glass exposed to impact before blast loading 

      Osnes, Karoline; Dey, Sumita; Hopperstad, Odd Sture; Børvik, Tore (Journal article; Peer reviewed, 2019)
      In this study, the effect of fragment or bullet impact before blast loading on laminated glass is studied experimentally. First, laminated windows consisting of two 3.8 mm thick annealed float glass plates and a 1.52 mm ...
    • Quasi-Static and Dynamic Testing of Annealed Float Glass 

      Osnes, Karoline; Hopperstad, Odd Sture; Børvik, Tore (Journal article; Peer reviewed, 2018)
      Three different experimental set-ups were employed in the investigation of the fracture strength of annealed float glass. These included four-point bending tests on three different specimen sizes, and quasi-static and ...
    • Rate dependent fracture of monolithic and laminated glass: Experiments and simulations 

      Osnes, Karoline; Børvik, Tore; Hopperstad, Odd Sture (Peer reviewed; Journal article, 2020)
      Glass is a brittle material known to possess large scatter in its fracture strength, which is caused by the existence of microscopic surface flaws. Fracture in glass generally originates from stress concentrations around ...
    • Shock Tube Testing and Modelling of Annealed Float Glass 

      Osnes, Karoline; Børvik, Tore; Hopperstad, Odd Sture (Journal article; Peer reviewed, 2018)
      Failure of glass is dominantly brittle, and is caused by microscopic flaws randomly distributed on the surface. Fracture mainly initiates in these flaws, and this leads to a high variability in the glass strength, which ...
    • Submerged floating tunnels subjected to internal blast loading 

      Haug, Sondre Rydtun; Osnes, Karoline (Master thesis, 2015)
      Design of structures against blast loading is of great importance and has received a lot of attention in recent years. The Norwegian Public Road Administration (NPRA) are currently investigating the potential for eliminating ...
    • Testing and modelling of annealed float glass under quasi-static and dynamic loading 

      Osnes, Karoline; Hopperstad, Odd Sture; Børvik, Tore (Journal article, 2018)
      In recent years, a considerable number of studies has been carried out to analyse the behaviour of laminated glass plates under blast loading by the use of the finite element method. This has proven to be quite challenging, ...