000120145 001__ 120145
000120145 005__ 20190111220613.0
000120145 0247_ $$2doi$$a10.1016/j.jnucmat.2004.07.052
000120145 022__ $$a0022-3115
000120145 02470 $$2ISI$$a000225528200009
000120145 037__ $$aARTICLE
000120145 245__ $$aAssessment of the constitutive properties from small ball punch test: experiment and modeling
000120145 260__ $$c2004
000120145 269__ $$a2004
000120145 336__ $$aJournal Articles
000120145 520__ $$aAn assessment of the true stress-true strain relationship  has been done by means of tensile and small ball punch  tests on austenitic and tempered martensitic steel at room  temperature. A finite element model was developed and  validated to calculate the force-deflection curve obtained  from the ball punch experiment. The effects of the specimen  thickness and material properties on the overall shape of  the ball punch test curve are discussed. The constitutive  behavior assigned to the specimen for the calculations was  determined from the tensile test but we showed that  assumptions have to be done to extend it to large strains  as those arising during the punch tests. Using an inverse  methodology, it was possible to show that a linear strain- hardening stage takes place at large strains. The potential  for evaluating the evolution of the strain-hardening  capacity after irradiation is outlined. (C) 2004 Elsevier  B.V. All rights reserved.
000120145 700__ $$aCampitelli, E. N.
000120145 700__ $$0240522$$aSpaetig, P.$$g106982
000120145 700__ $$aBonade, R.
000120145 700__ $$aHoffelner, W.
000120145 700__ $$0244003$$aVictoria, M.$$g106649
000120145 773__ $$j335$$k3$$q366-378$$tJournal of Nuclear Materials
000120145 909C0 $$pCRPP
000120145 909C0 $$0252028$$pSPC
000120145 909CO $$ooai:infoscience.tind.io:120145$$pSB$$particle
000120145 937__ $$aCRPP-ARTICLE-2004-090
000120145 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000120145 980__ $$aARTICLE