DIC-aided biaxial fatigue tests of a 304L steel

M. Poncelet, G. Barbier, B. Raka, S. Courtin, R. Desmorat, J. C. Le-Roux, L. Vincent

Research output: Contribution to journalConference articlepeer-review

Abstract

Several biaxial fatigue tests are conducted up to 106 cycles at room temperature in the context of a collaboration LMT-Cachan / EDF / AREVA / SNECMA / CEA. Malteses cross specimens of 304L steel, designed to initiate crack in the bulk, are loaded by a triaxial testing machine. A Digital Image Correlation technique is used to measure strain during loading and detect crack initiation early. A special optical assembly and a stroboscopic sampling method are set up in this purpose. Several types of loadings are performed: equibiaxial with a loading ratio R = 0.1, equibiaxial with loading ratio R = -1, pseudo uniaxial (cyclic loading at R= 0.1 in one direction and constant loading in the other). First results are commented.

Original languageEnglish
Article number16002
JournalEPJ Web of Conferences
Volume6
DOIs
Publication statusPublished - 9 Jun 2010
Externally publishedYes
Event14th International Conference on Experimental Mechanics, ICEM 2014 - Poitiers, France
Duration: 4 Jul 20109 Jul 2010

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