%0 Journal Article
%A Arakcheev, A. A.
%A Skovorodin, D. I.
%A Burdakov, A. V.
%A Shoshin, A. A.
%A Polosatkin, S. V.
%A Vasilyev, A. A.
%A Postupaev, V. V.
%A Vyacheslavov, L. N.
%A Kasatov, A. A.
%A Huber, Alexander
%A Mertens, Philippe
%A Wirtz, Marius
%A Linsmeier, Christian
%A Kreter, Arkadi
%A Loewenhoff, Thorsten
%A Begrambekov, L.
%A Grunin, A.
%T Calculation of Cracking inTungsten Manufactured According to ITER Specifications Under Pulsed Heat Load
%J Journal of nuclear materials
%V 467
%N 1
%@ 0022-3115
%C Amsterdam [u.a.]
%I Elsevier Science
%M FZJ-2015-06876
%P 165-171
%D 2015
%X A mathematical model of surface cracking under pulsed heat load was developed. The model correctly describes a smooth brittle–ductile transition. The elastic deformation is described in a thin-heated-layer approximation. The plastic deformation is described with the Hollomon equation. The time dependence of the deformation and stresses is described for one heating–cooling cycle for a material without initial plastic deformation.The model can be applied to tungsten manufactured according to ITER specifications. The model shows that the stability of stress-relieved tungsten deteriorates when the base temperature increases. This proved to be a result of the close ultimate tensile and yield strengths. For a heat load of arbitrary magnitude a stability criterion was obtained in the form of condition on the relation of the ultimate tensile and yield strengths.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000365602800016
%R 10.1016/j.jnucmat.2015.09.034
%U https://juser.fz-juelich.de/record/276437