| Issue |
EPJ Web of Conferences
Volume 6, 2010
ICEM 14 – 14th International Conference on Experimental Mechanics
|
|
|---|---|---|
| Article Number | 16002 | |
| Number of page(s) | 8 | |
| Section | Multiaxial Testing | |
| DOI | https://doi.org/10.1051/epjconf/20100616002 | |
| Published online | 10 June 2010 | |
https://doi.org/10.1051/epjconf/20100616002
DIC-aided biaxial fatigue tests of a 304L steel
1
CEA Saclay, DEN, SRMA, 91191
Gif-sur-Yvette cedex,
France
2
LMT Cachan, 61 av. du Président Wilson, 94230
Cachan,
France
3
EDF R&D / MMC, Avenue des renardières – Ecuelles,
77818
Moret Sur Loing,
France
4
AREVA NP SAS, Tour AREVA, 92084
Paris La Défense,
France
a e-mail : martin.poncelet@cea.fr
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.
© Owned by the authors, published by EDP Sciences, 2010
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