Publications

Popular science

Journal papers

 2013:

  1. Wiklund, G., Akselsen, O.M., Sørgjerd, A.J., Kaplan, A.F.H.: "Geometrical aspects of hot cracks in laser hybrid arc welding", Journal of Laser Applications (2013, in press).
  2. P. Mohseni, J.K. Solberg, M. Karlsen, O.M. Akselsen, E. Østby: "Cleavage fracture initiation at M-A constituents in intercritically coarse grained heat affected zone of a HSLA steel", Metall. & Mater. Trans. (2013, in press).
  3. Vatne, I., Stukowski, A., Thaulow, C, Østby, E. Marian, J.: "Three-dimensional crack initiation mechanisms in bcc-Fe under loading modes I, II and III”, Mater. Sci. Eng., 560A, 2013, 306-314.
  4. Ersland, C.H., Vatne, I.R., Thaulow, C.: "Atomistic modelling of penny-shaped and through-thickness cracks in bcc iron", Mater. Sci. Eng., 560, 2013, 306-314.

 2012

  1. Mohseni P., Solberg J.K., Karlsen M., Akselsen O.M., Østby E: “Application of combined EBSD and 3D-SEM technique on crystallographic facet analysis of steel at low temperature”, J. Microscopy, 251, 2013, 45-56.
  2. Østby, E., Thaulow, C., Akselsen, O.M.: "Quantitative relation between acoustic emission signal amplitude and arrested cleavage microcrack size", Int. J. Fracture, 177, pp. 73-80.
  3. Mohseni, P., Solberg, J.K., Karlsen, M., Akselsen, O.M., Østby, E.: "Investigation of mechanism of cleavage fracture initiation in intercritically coarse grained heat affected zone of HSLA steel", Mater. Sci. Technol., 28, 2012, 1261-1268.
  4. Ersland, C. H, Thaulow, C., Vatne, I. R., Østby, E.: "Atomistic modeling of micromechanisms and T-stress effects in fracture of iron", Eng. Fract. Mech., 79, 2012, 180–190.

2011

  1. Vatne, I., Østby, E., Thaulow, C, Farkas, D.: "Quasicontinuum modeling of crack propagation in bcc-Fe", Mater. Sci. Eng., 528A, 2011, 5122-5134.
  2. Thaulow, C., Schiffer, S.V., Vatne, I.R., Sen, D., Østby, E.: “Crack Tip Opening Displacement in atomistic modelling of fracture of silicon”. J. Computational Mater. Sci., 50, 2011, 2621-2627.
  3. Vatne, I. R., Østby, E., Thaulow, C.: "Multiscale simulations of mixed-mode fracture in bcc-FE", Modelling and Simulation in Mater. Sci. Eng., 19, 2011, art.no. 085006.
  4. Hobæk, T C; Leinan K G, Leinaas, H P, Thaulow, C.: "Surface Nanoengineering Inspired by Evolution", BioNanoScience, 1, 2011, 63-77.
  5. Thaulow, C; Sen, D, Buehler MJ.: "Atomistic Study of the Effect of Crack Tip Ledges on the Nucleation of Dislocations in Silicon Single Crystals at Elevated Temperature", Mater. Sci. Eng., A528, 2011, 4357-4364.

 2010

  1. Xu, J., Zhang, Z.L., Østby, E., Nyhus, B., Sun, D.B. “Constraint effect on ductile crack growth resistance of circumferentially cracked pipes”. Eng. Fract. Mech., 77, 2010, 671-684.
  2. Sen, D., Thaulow, C., Schieffer, S.V., Cohen, A., Buehler M.J. “Atomistic Study of Crack-Tip Cleavage to Dislocation Emission Transition in Silicon Single Crystals”, Phys. Rev. Lett., 2010, PACS numbers: 62.25.Mn, 46.50.+a, 62.20.

2009

  1. Xu, J., Zhang, Z.L., Østby, E, Nyhus, B., Sun, D.B.: “Effects of crack depth and specimen size on ductile crack growth of SENT and SENB specimens for fracture mechanics evaluation of pipeline steels”. Int. J. Pressure Vessels and Piping, 86, 2009, 787-797.
  2. Ackbarow, T, Sen, D, Thaulow, C, and Buehler, MJ.: “Alphahelical protein networks are self-protective and flaw tolerant”, PLoS ONE, 4, 2009, e6015.
  3. Sen, D., Thaulow, C., Schieffer, S.V., Cohen, A., Buehler M.J.: “Atomistic mechanism in brittle-to-ductile transition in silicon single crystals” Materials Research Society, December Boston (2009).

International conference proceedings

2013

  1. Akselsen, O.M., Wiklund, G., Østby, E., Sørgjerd, A., Kaplan, A.F.H.: "A first assessment of laser hybrid welding of 420 MPa steel for offshore structure application", Proc. 14th Nordic Laser Materials Processing Conference (NOLAMP 14), Gothenburg, Sweden, August 26-28, 2013.
  2. X.B. Ren, O.M. Akselsen, S.K. Ås, A.F.H. Kaplan: "Residual stresses of hybrid laser-arc welding for arctic application", Proc. 14th Nordic Laser Materials Processing Conference (NOLAMP 14), Gothenburg, Sweden, August 26-28, 2013, 183-191.
  3. Jørgensen, H., Østby, E., Akselsen, O.M.: "Challenges in application of steel castings in cold climate regions", Proc. 23rd Int. Conf. ISOPE 2013 (the “Annual Int. Offshore and Polar Eng. Conf.”), Anchorage, USA, June 30-July 4, 2013.
  4. Akselsen, O.M., Wiklund, G., Østby, E., Sørgjerd, A., Kaplan, A.F.H.: "Properties of laser hybrid butt welds of 420 MPa steel", Proc. 23rd Int. Conf. ISOPE 2013 (the “Annual Int. Offshore and Polar Eng. Conf.”), Anchorage, USA, June 30-July 4, 2013.
  5. Heier, E., Østby, E., Akselsen, O.M.: "Reeling installation of rigid steel pipelines at low temperature" Proc. 23rd Int. Conf. ISOPE 2013 (the “Annual Int. Offshore and Polar Eng. Conf.”), Anchorage, USA, June 30-July 4, 2013.
  6. Østby, E., Akselsen, O.M.: "Monitoring of cleavage microcrack arrest in weld thermal simulated microstructures by means of acoustic emission", Proc. 23rd Int. Conf. ISOPE 2013 (the “Annual Int. Offshore and Polar Eng. Conf.”), Anchorage, USA, June 30-July 4, 2013.
  7. Østby, E., Hauge, M., Horn, A.M., Akselsen, O.M.: "Fracture mechanics design criteria for low temperature applications of steel weldments", Proc. 23rd Int. Conf. ISOPE 2013 (the “Annual Int. Offshore and Polar Eng. Conf.”), Anchorage, USA, June 30-July 4, 2013.
  8. Diaz, R., Gaarder, R.H., Olafsen, K.: "Elastomeric materials for harsh arctic environments" Proc. 23rd Int. Conf. ISOPE 2013 (the “Annual Int. Offshore and Polar Eng. Conf.”), Anchorage, USA, June 30-July 4, 2013. 

2012

  1. Brandt K., Solberg, J.K., Akselsen, O.M., Østby, E.: "Initiation of Cleavage Fracture in a Weld Simulated Low Carbon Low Alloy Arctic Steel", Proc. 22nd Int. Conf. ISOPE 2012 (the “Annual Int. Offshore and Polar Eng. Conf.”), June 18-24, Rhodes, Greece.
  2. Akselsen O.M., Østby E., Nyhus B.: "Low temperature fracture toughness of X80 girth welds", Proc. 22nd Int. Conf. ISOPE 2012 (the “Annual Int. Offshore and Polar Eng. Conf.”), Rhodes, Greece, June 18-24, 2012.
  3. Haugen V., Akselsen O.M., Thaulow C., Østby E.: "On local properties of microstructures in steel welding", Proc. 22nd Int. Conf. ISOPE 2012 (the “Annual Int. Offshore and Polar Eng. Conf.”), Rhodes, Greece, 18-24 June, 2012.
  4. Welsch M.T., Bruch D., Akselsen O.M., Østby E.: "Low temperature brittle fracture susceptibility in welding of F70 grade forging", Proc. 22nd Int. Conf. ISOPE 2012 (the “Annual Int. Offshore and Polar Eng. Conf.”), Rhodes, Greece, June 18-24, 2012.
  5. Hansen K.W, Sætran T.G., Karlsen M., Nilsen T.A., Dall W., Hjelen J.: "Phase Transformation Study of Arctic Steels by EBSD during In Situ Heating and Gas Quenching", Proc. 22nd Int. Conf. ISOPE 2012 (the “Annual Int. Offshore and Polar Eng. Conf.”), Rhodes, Greece, June 18-24, 2012.
  6. Mohseni P., Solberg J.K., Karlsen M., Akselsen O.M., Østby E.: "Determination of crystallographic facet orientation of fracture surface in Arctic steels at low temperature by using EBSD", Proc. 22nd Int. Conf. ISOPE 2012 (the “Annual Int. Offshore and Polar Eng. Conf.”), Rhodes, Greece, June 18-24, 2012.
  7. Bjørgum A., Knudsen O.Ø., Kvernbråten A.K, Nilsen N.I., Bastiko A.P. "Protective Coatings in Arctic Environments", Eurocorr 2012, Istanbul, September 9-13, 2012.
  8. Østby E., Kolstad G, Akselsen OM. Thaulow C, Hauge M. "Comparison of Fracture Toughness in Real Weld and Thermally Simulated CGHAZ of a 420 MPa Rolled Plate", Proc. 22nd Int. Conf. ISOPE 2012 (the “Annual Int. Offshore and Polar Eng. Conf.”), Rhodes, Greece, June 18-24, 2012.
  9. Horn AM, Østby E, Hauge M, Aubert JM.: "Robust Material qualification for Arctic applications", Proc. 22nd Int. Conf. ISOPE 2012 (the “Annual Int. Offshore and Polar Eng. Conf.”), Rhodes, Greece, June 18-24, 2012.
  10. Sakimoto T, Igi S, Endo S, Suzuki S, Østby E.: "Constraint loss correction between SENB and SENT for welded joint specimens based on Weibull stress criterion", Proc. 22nd Int. Conf. ISOPE 2012 (the “Annual Int. Offshore and Polar Eng. Conf.”), Rhodes, Greece, June 18-24, 2012.

2011

  1. Welsch, M.T., Bruch, D., Østby, E. “Forgings for low temperature applications – Influence of the alloying concept and advanced forging procedures on impact strength and fracture toughness”. Proc. 21st Int. Conf. ISOPE 2011 (the “Annual Int. Offshore and Polar Eng. Conf.”), 19th-24th of June, Hawaii, USA.
  2. Horn, A.M, Hauge, M. “Material qualification for arctic applications”. Proc. 21st Int. Conf. ISOPE 2011 (the “Annual Int. Offshore and Polar Eng. Conf.”), 19th-24th of June, Hawaii, USA.
  3. Mohseni, P., Solberg, J.K., Akselsen, O.M., Østby, E.: ”Application of electron backscatter diffraction (EBSD) on face crystallographic orientation studies in Arctic steels”. Proc. 21st Int. Conf. ISOPE 2011 (the “Annual Int. Offshore and Polar Eng. Conf.”), 19th-24th of June, Hawaii, USA.
  4. Ren, X.B. Aas, S.K., Akselsen, O.M., Nyhus, B.: “Comparison of hybrid laser-arc welding with conventional MIG welding for Arctic applications”. Proc. 21st Int. Conf. ISOPE 2011 (the “Annual Int. Offshore and Polar Eng. Conf.”), 19th-24th of June, Hawaii, USA.
  5. Akselsen, O.M. Østby, E. Thaulow, C.: ”Low temperature toughness in SA welding of 420 MPa steel”. Proceedings of ISOPE, 19th-24th of June, Hawaii, USA.
  6. Thaulow, C. Lange, H.I., Ålstedt, S, Østby, E, Akselsen, O.M.: “Fracture mechanics testing of weldments – Surface versus through thickness notching”. Proc. 21st Int. Conf. ISOPE 2011 (the “Annual Int. Offshore and Polar Eng. Conf.”), 19th-24th of June, Hawaii, USA.
  7. Rogne, B.R.S., Thaulow, C.: “Investigation of new nanomechanical test methods on Arctic steels”. Proc. 21st Int. Conf. ISOPE 2011 (the “Annual Int. Offshore and Polar Eng. Conf.”), 19th-24th of June, Hawaii, USA.
  8. Ersland, C.H. Thaulow, C. Østby, E.: “Atomistic simulations of semi-inficnite cracks in bcc iron using an analytical bond-order potential" Proc. 21st Int. Conf. ISOPE 2011 (the “Annual Int. Offshore and Polar Eng. Conf.”), 19th-24th of June, Hawaii, USA.
  9. Kane, A. Østby, E.: “Crystal plasticity modelling of the local crack tip stress field”. Proc. 21st Int. Conf. ISOPE 2011 (the “Annual Int. Offshore and Polar Eng. Conf.”), 19th-24th of June, Hawaii, USA.
  10. Østby, E. Thaulow, C. Akselsen, O.M.: “Fracture toughness scatter and effect of constraint in weld thermal simulated HAZ microstructures at -60°C”. Proc. 21st Int. Conf. ISOPE 2011 (the “Annual Int. Offshore and Polar Eng. Conf.”), 19th-24th of June, Hawaii, USA.
  11. Hauge, M.: “Statistical interpretation of fracture toughness test data for qualification of weldability and integrity assessment of Arctic structures”. Proc. 21st Int. Conf. ISOPE 2011 (the “Annual Int. Offshore and Polar Eng. Conf.”), 19th-24th of June, Hawaii, USA.
  12. Enstad, A.J., Karlsen, M., Astad, S.P., Hjelen, J., Solberg, J.K., Akselsen, O.M., Østby, E.: “Microstructure examination of arctic steel during in situ heat treatment in high resolution scanning electron microscope”, Proc. 21st Int. Conf. ISOPE 2011 (the “Annual Int. Offshore and Polar Eng. Conf.”), 19th-24th of June, Hawaii, USA.
  13. Pedersen, J., Astad, S.P., Karlsen, M., Hjelen, J., Solberg, J.K., Akselsen, O.M., Østby, E.: “Microstructure evaluation of arctic steel during in situ deformation at sub zero temperatures in high resolution scanning electron microscope”, Proc. 21st Int. Conf. ISOPE 2011 (the “Annual Int. Offshore and Polar Eng. Conf.”), 19th-24th of June, Hawaii, USA.
  14. Ren, X., Ås, S.K., Akselsen, O.M., Nyhus, B.: "Numerical simulation of hybrid laser-arc welding for X70 pipeline steels", Proc. 13th Nordic Laser Materials Processing Conference (NOLAMP 13), Trondheim, June, 27-29, 2011.
  15. Haslerud, M.L., Gaarder, R.H., Grytten, F., Osnes, H.: "Testing and analyses of adhesively bonded single lap joints at sub-zero temperatures – a master thesis”, Proceedings of the 24th Nordic Seminar on Computational Mechanics, 3-4 November 2011, Helsinki, Finland.
  16. Bjørgum, A., Knudsen, O.Ø., Kvernbråten, A.-K., Nilsen, N.-I., Lapique, F.: "Corrosion protecting coating systems in Arctic areas", Paper No. 4778, Proceedings of EUROCORR 2011, Stockholm, September 4-8, 2011.

2010

  1. Xu, J., Zhang, Z.L., Østby, E., Nyhus, B., Sun, D.B.: "Effects of temperature and crack tip constraint on cleavage fracture toughness in the weld thermal simulated X80 pipeline steel". Proceeding of ISOPE 2010, Beijing, China, June, 2010.
  2. Thaulow, C., Sen, D., Schieffer, S.V., Buehler, M.J.: "Atomistic insight into the brittle to ductile transition of silicon", European Conf. on Fracture, Dresden, Sept, 2010.
  3. Thaulow, C., Sen, D., Buehler, M.J.: "Effect of atomistic surface steps on the brittle to ductile transition of silicon", Multiscale Material Modeling, MMM2010, Int Conf, Freiburg, Oct., 2010.
  4. Ersland, C.H., Thaulow, C., Farkas, D., Østby, E.: "Atomistic studies and comparison of α-Fe potentials in mode I fracture", European Conf. on Fracture, Dresden, Sept, 2010.
  5. Østby, E., Thaulow, C., Akselsen, O.M., Kristensen, T.A.: "Monitoring of microcracking events in weld thermal simulated microstructures using acoustic emission", European Conf. on Fracture, Dresden, Sept., 2010.
  6. Ersland, C.H., Thaulow, C., Farkas, D., Østby, E.: "Influence of interatomic potential on the atomistic fracture in iron", Multiscale Material Modelling, MMM2010, Int Conf, Freiburg, Oct, 2010.
  7. Vatne, I.R., Østby, E., Thaulow, C.: "Multiscale Material Modeling of Fracture in Fe using Modified Boundary Layer (MBL)”, European Conf. on Fracture, Dresden, Sept, 2010.
  8. Vatne, I.R., Østby, E., Thaulow, C.: "Quasicontinuum simulation of mixed mode fracture in bcc-Fe", Multiscale Material Modelling, MMM2010, Int. Conf., Freiburg, Oct, 2010.

2009

  1. Xu, J., Zhang, Z.L., Østby, E., Nyhus, B., Sun, D.: “Numerical analysis of ductile fracture behaviour in 2D plane strain and axisymmetric models using the complete Gurson model”, Proceedings of PVP2009, Prague, Czech Republic.

Books/article in book/report

2012

  1. Vatne, I.R.: "Quasicontinuum modeling of fracture in bcc materials", PhD thesis, NTNU, 2012:333.
  2. Ersland, C.H.: "Atomistic modeling of failure in iron", PhD thesis, NTNU, 2012:129.

 

 

 

Published January 8, 2010

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