Browsing NTNU Open by Author "Bering, Eivind"
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Can Local Stress Enhancement Induce Stability in Fracture Processes? Part I: Apparent Stability
Kjellstadli, Jonas Tøgersen; Bering, Eivind; Hendrick, Martin; Pradhan, Srutarshi; Hansen, Alex (Journal article; Peer reviewed, 2019)By comparing the evolution of the local and equal load sharing fiber bundle models, we point out the paradoxical result that stresses seem to make the local load sharing model stable when the equal load sharing model is ... -
Can Local Stress Enhancement Induce Stability in Fracture Processes? Part II: The Shielding Effect
Kjellstadli, Jonas Tøgersen; Bering, Eivind; Pradhan, Srutarshi; Hansen, Alex (Journal article; Peer reviewed, 2019)We use the local load sharing fiber bundle model to demonstrate a shielding effect where strong fibers protect weaker ones. This effect exists due to the local stress enhancement around broken fibers in the local load ... -
Computational study of the dissolution of cellulose into single chains: the role of the solvent and agitation
Bering, Eivind; Torstensen, Jonathan Økland; Lervik, Anders; de Wijn, Astrid S. (Journal article; Peer reviewed, 2022)We investigate the dissolution mechanism of cellulose using molecular dynamics simulations in both water and a mixture solvent consisting of water with Na+, OH− and urea. As a first computational study of its kind, we apply ... -
Entropy production beyond the thermodynamic limit from single-molecule stretching simulations
Bering, Eivind; Kjelstrup, Signe; Bedeaux, Dick; Rubi, Miguel; de Wijn, Astrid S. (Peer reviewed; Journal article, 2020)Single-molecular systems are a test bed to analyze to what extent thermodynamics applies when the size of the system is drastically reduced. Isometric and isotensional single-molecule stretching experiments and their ... -
Legendre-Fenchel transforms capture layering transitions in porous media
Galteland, Olav; Bering, Eivind; Kristiansen, Kim; Bedeaux, Dick; Kjelstrup, Signe (Peer reviewed; Journal article, 2022)We have investigated the state of a nanoconfined fluid in a slit pore in the canonical and isobaric ensembles. The systems were simulated with molecular dynamics simulations. The fluid has a transition to a close-packed ... -
A Legendre–Fenchel Transform for Molecular Stretching Energies
Bering, Eivind; Bedeaux, Dick; Kjelstrup, Signe; de Wijn, Astrid S.; Latella, Ivan; Rubi, Miguel (Peer reviewed; Journal article, 2020)Single-molecular polymers can be used to analyze to what extent thermodynamics applies when the size of the system is drastically reduced. We have recently verified using molecular-dynamics simulations that isometric and ... -
On the Stability of the Local Load Sharing Fiber Bundle Model
Bering, Eivind (Master thesis, 2016)This thesis investigates a generalized history-independent local load sharing (LLS) fiber bundle model for two dimensional interfacial fractures. When the failure threshold of the fibers are assigned according to the ... -
Stretching and breaking of PEO nanofibres. A classical force field and ab initio simulation study
Bering, Eivind; de Wijn, Astrid S. (Peer reviewed; Journal article, 2020)The burgeoning development of nanotechnology is allowing us to construct more and more nano-scale systems in the real world that used to only exist in computer simulations. Among them, nanofibres made of only a few aligned ... -
Stretching, breaking, and dissolution of polymeric nanofibres by computer experiments
Bering, Eivind (Doctoral theses at NTNU;2021:176, Doctoral thesis, 2021)Bundles of polymeric materials are ubiquitous and play essential roles in biological systems, and often display remarkable mechanical properties. With the never-ending experimental advances in control and manipulation of ...