@misc{Li2006,
  author    = {Li, Fei},
  title     = {Numerische Untersuchungen zu Temperaturfeldern und Eigenspannungen einer MAG-geschweißten Stumpfnaht an austenitisch-ferritischem Stahl X2CrNiMoN22-5-3},
  doi       = {10.25643/bauhaus-universitaet.786},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-7862},
  year      = {2006},
  abstract  = {Auf der Basis der Literaturrecherche wird in dieser Arbeit eine 5-lagige MAG-geschweißte Stumpfnaht an austenitisch-ferritischen Stahl X2CrNiMoN22-5-3 (Duplex-Stahl 1.4462) mit dem FE-Programm „SYSWELD®" simuliert. Die Berech-nungen der Temperaturfelder werden unter der Ber{\"u}cksichtigung sowohl von tempe-raturunabh{\"a}ngigen als auch temperaturabh{\"a}ngigen thermophysikalischen Material-eigenschaften am drei-dimensionalen und zwei-dimensionalen Modell durchgef{\"u}hrt. Die berechneten Temperatur-Zeit-Verl{\"a}ufe und Gef{\"u}geumwandlungen beim MAG-Schweißen der Stumpfnaht werden hinsichtlich der Einfl{\"u}sse und Ver{\"a}nderun-gen analysiert und die ermittelten Abk{\"u}hlzeiten t12/8 werden f{\"u}r jede Schweißlage bewertet. Anschließend werden die Berechnungen des Eigenspannungszustandes f{\"u}r einzelne Schweißlagen untersucht.},
  subject      = {Duplexstahl},
  language  = {de}
}
@article{KrausCrişanWittor,
  author    = {Kraus, Matthias and Cri{\c{s}}an, Nicolae-Andrei and Wittor, Bj{\"o}rn},
  title     = {Stability Study of Cantilever-Beams - Numerical Analysis and Analytical Calculation (LTB)},
  series = {ce/papers},
  volume    = {2021},
  journal   = {ce/papers},
  number    = {Volume 4, issue 2-4},
  publisher = {Ernst \& Sohn, a Wiley brand},
  address   = {Berlin},
  doi       = {10.1002/cepa.1539},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220112-45637},
  pages     = {2199 -- 2206},
  abstract  = {According to Eurocode, the computation of bending strength for steel cantilever beams is a straightforward process. The approach is based on an Ayrton-Perry formula adaptation of buckling curves for steel members in compression, which involves the computation of an elastic critical buckling load for considering the instability. NCCI documents offer a simplified formula to determine the critical bending moment for cantilevers beams with symmetric cross-section. Besides the NCCI recommendations, other approaches, e.g. research literature or Finite-Element-Analysis, may be employed to determine critical buckling loads. However, in certain cases they render different results. Present paper summarizes and compares the abovementioned analytical and numerical approaches for determining critical loads and it exemplarily analyses corresponding cantilever beam capacities using numerical approaches based on plastic zones theory (GMNIA).},
  subject      = {Tr{\"a}ger},
  language  = {en}
}
@article{IbanezKraus,
  author    = {Ibanez, Stalin and Kraus, Matthias},
  title     = {A Numerical Approach for Plastic Cross Cross-Sectional Analyses of Steel Members},
  series = {ce/papers},
  volume    = {2021},
  journal   = {ce/papers},
  number    = {Volume 4, issue 2-4},
  publisher = {Ernst \& Sohn, a Wiley brand},
  address   = {Berlin},
  doi       = {10.1002/cepa.1527},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20220112-45622},
  pages     = {2098 -- 2106},
  abstract  = {Global structural analyses in civil engineering are usually performed considering linear-elastic material behavior. However, for steel structures, a certain degree of plasticization depending on the member classification may be considered. Corresponding plastic analyses taking material nonlinearities into account are effectively realized using numerical methods. Frequently applied finite elements of two and three-dimensional models evaluate the plasticity at defined nodes using a yield surface, i.e. by a yield condition, hardening rule, and flow rule. Corresponding calculations are connected to a large numerical as well as time-consuming effort and they do not rely on the theoretical background of beam theory, to which the regulations of standards mainly correspond. For that reason, methods using beam elements (one-dimensional) combined with cross-sectional analyses are commonly applied for steel members in terms of plastic zones theories. In these approaches, plasticization is in general assessed by means of axial stress only. In this paper, more precise numerical representation of the combined stress states, i.e. axial and shear stresses, is presented and results of the proposed approach are validated and discussed.},
  subject      = {Stahlkonstruktion},
  language  = {en}
}
@misc{Gundermann2005,
  type      = {Master Thesis},
  author    = {Gundermann, Ralf},
  title     = {3D-Simulation des Temperaturfeldes und der Gef{\"u}geumwandlung bei einer Laserstrahlschweißung},
  doi       = {10.25643/bauhaus-universitaet.668},
  url       = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-6680},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  year      = {2005},
  abstract  = {Das FEM-Programmsystem „SYSWELD" kommt f{\"u}r die Berechnung des Temperaturfeldes bei einer Laserstrahlschweißung zum Einsatz. Insbesondere sollen der Einfluss des Energieeintrages und die damit verbundene Gef{\"u}geumwandlung eines Feinkornbaustahles untersucht und Aussagen zur notwendigen Modellierungsgenauigkeit der Nahtgeometrie bzw. Netzverfeinerung getroffen werden. Im Einzelnen sind folgende Teilaufgaben zu l{\"o}sen: - ausf{\"u}hrliche Literaturrecherche zur numerischen Analyse von Schweißverbindungen insbesondere zu temperaturabh{\"a}ngigen Materialeigenschaften von Feinkornbaust{\"a}hlen, - Darstellung der W{\"a}rmequelle f{\"u}r das Laserstrahlschweißen, - Erprobung unterschiedlicher Netzvarianten f{\"u}r die FE-Analyse von instation{\"a}ren Temperaturfeldern, - Untersuchung zur Modellierungsgenauigkeit der Nahtgeometrie, - Parameterstudien zum Einfluss der Materialkennwerte und Gef{\"u}gekinetik auf das Temperaturfeld sowie das Gef{\"u}ge.},
  subject      = {Laserschweißen},
  language  = {de}
}