| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7169757 | Engineering Fracture Mechanics | 2015 | 17 Pages |
Abstract
In this work, damage behavior of tungsten under high heat flux loads was investigated both numerically and experimentally assuming a single heat pulse with duration of 0.5Â s. Finite element simulations revealed that the thermal steady state was reached within several milliseconds after the onset of a heat flux pulse and tensile residual stress was produced during cooling providing the driving force for crack growth. The crack initiation and growth simulations and J-integral calculation at crack tips delivered consistent results on cracking mechanism. Electron beam irradiation tests on tungsten samples were performed, which confirmed the predicted damage behavior.
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Authors
Muyuan Li, Mathias Sommerer, Ewald Werner, Stefan Lampenscherf, Thorsten Steinkopff, Philipp Wolfrum, Jeong-Ha You,