This title appears in the Scientific Report :
2015
Please use the identifier:
http://dx.doi.org/10.1016/j.jnucmat.2014.10.090 in citations.
Theoretical investigation of crack formation in tungsten after heat loads
Theoretical investigation of crack formation in tungsten after heat loads
Transient events such as ELMs in large plasma devices lead to significant heat load on plasma-facing components (PFCs). ELMs cause mechanical damage of PFCs (e.g. cracks). The cracks appear due to stresses caused by thermal extension. Analytical calculations of the stresses are carried out for tungs...
Saved in:
Personal Name(s): | Arakcheev, A. S. |
---|---|
Huber, A. (Corresponding author) / Wirtz, M. / Sergienko, G. / Steudel, I. / Burdakov, A. V. / Coenen, J. W. / Kreter, A. / Linke, J. / Mertens, Ph. / Shoshin, A. A. / Unterberg, B. / Vasilyev, A. A. | |
Contributing Institute: |
Plasmaphysik; IEK-4 Werkstoffstruktur und -eigenschaften; IEK-2 |
Published in: | Journal of nuclear materials, 463 (2015) S. 246 - 249 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2015
|
DOI: |
10.1016/j.jnucmat.2014.10.090 |
Document Type: |
Journal Article |
Research Program: |
Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) Methods and Concepts for Material Development |
Publikationsportal JuSER |
Transient events such as ELMs in large plasma devices lead to significant heat load on plasma-facing components (PFCs). ELMs cause mechanical damage of PFCs (e.g. cracks). The cracks appear due to stresses caused by thermal extension. Analytical calculations of the stresses are carried out for tungsten. The model only takes into account the basic features of solid body mechanics without material modifications (e.g. fatigue or recrystallization). The numerical results of the model demonstrate good agreement with experimental data obtained at the JUDITH-1, PSI-2 and GOL-3 facilities. |