doi:10.1016/j.jnucmat.2008.12.120
ISI:000266386900081
Campitelli, E.
Spätig, P.
Bertsch, J.
Numerical investigation by finite element simulations of the ball punch test: Application to tempered martensitic steels
The Netherlands, Elsevier
The effects of the post-yield behaviour on the shape of small ball punch test (SBPT) curves were investigated with finite element simulations from which the load-deflection curves were extracted. We have shown the general yield load defined on the ball punch curves depends on the post-yield behaviour and that the usual linear calibration between the yield load and the yield stress may lead to erroneous estimations of the irradiation-hardening. A new calibration procedure has been proposed to determine the yield stress from a ball punch curve that makes use of empirical parameters that minimizes the effects of the post-yield behaviour which influence the overall shape of the ball punch test from the very beginning of the tests.
2010-04-09T12:13:46Z
http://infoscience.epfl.ch/record/148218
http://infoscience.epfl.ch/record/148218
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