Advancement of Optical Methods in Experimental Mechanics, Volume 3

3 Early Strain Localization in Strong Work Hardening Aluminum Alloy (2198 T3): 3D Laminography and DVC Measurement 17 significantly, yet the final crack path follows the band position. This does not happen without any damage changes since damage growth is observed at micrometer resolution but only very late in the loading history. Figure 3.1b illustrates early strain fields plotted on the section normal to the crack propagation direction together with the final crack position. Qualitative observations and damage quantifications lead to the identification of two different damage micromechanisms, namely, classical high stress triaxiality induced and shear type damage growth. The latter plays a key role in the slant zone of the CT-like specimen, while the flat zone is characterized by the superposition of both micromechanisms. However, even in the flat zone the shear-type micromechanism prevails, which causes the zigzagged final crack pattern close to the notch root. Acknowledgments The financial support of the Fédération Francilienne de Mécanique and Agence Nationale de la Recherche (ANR-14-CE070034-02 grant for COMINSIDE project) is gratefully acknowledged. Constellium C-Tech supplied the material. We acknowledge the European Synchrotron Radiation Facility for provision of beamtime at beamline ID19 (experiments MI-1149 and MA-1631). References 1. Mahgoub, E., Deng, X., Sutton, M.A.: Eng. Fract. Mech. 70, 2527–2542 (2003) 2. Bron, F., Besson, J., Pineau, A.: Mat. Sci. Eng. A380(1–2), 356–364 (2004) 3. Asserin-Lebert, A., Besson, J., Gourgues, A.F.: Mat. Sci. Eng. A395(1–2), 186–194 (2005) 4. Lan, W., Deng, X., Sutton, M.A., Chen, C.S.: Int. J. Fract. 141, 469–496 (2006) 5. Morgeneyer, T.F., Helfen, L., Sinclair, I., Proudhon, H., Xu, F., Baumbach, T.: Scripta Mat. 65, 1010–1013 (2011) 6. Besson, J., McCowan, C.N., Drexler, E.S.: Eng. Fract. Mech. 104, 80–95 (2013) 7. Kamat, S.V., Hirth, J.P., Eng, J.: Mater. Technol. 117(4), 391–394 (1995) 8. Helfen, L., Baumbach, T., Mikulík, P., Kiel, D., Pernot, P., Cloetens, P., Baruchel, J.: Appl. Phys. Lett. 86(7), 071915 (2005) 9. Roux, S., Hild, F., Viot, P., Bernard, D.: Comp. Part A. 39(8), 1253–1265 (2008) 10. Morgeneyer, T.F., Helfen, L., Mubarak, H., Hild, F.: Exp. Mech. 53(4), 543–556 (2013) 11. Morgeneyer, T., Taillandier-Thomas, T., Helfen, L., Baumbach, T., Sinclair, I., Roux, S., Hild, F.: Acta Mat. 69, 78–91 (2014) 12. Taillandier-Thomas, T., Roux, S., Morgeneyer, T.F., Hild, F.: Nucl. Inst. Meth. Phys. Res. B. 324, 70–79 (2014) 13. Buljac, A., Taillandier-Thomas, T., Morgeneyer, T.F., Helfen, L., Roux, S., Hild, F.: Int. J. Fract. 200(1), 49–62 (2016) 14. Morgeneyer, T.F., Taillandier-Thomas, T., Buljac, A., Helfen, L., Hild, F., Mech, J.: Phys. Solids. 96, 550–571 (2016) 15. Bron, F., Besson, J.: Eng. Fract. Mech. 73(11), 1531–1552 (2006) 16. Rice, J.R.: Theoretical and Applied Mechanics, pp. 207–220 (1976) Ante Buljac was born 17th November 1989 in Sinj, Croatia. He finished gymnasium in Sinj and Faculty of Mechanical Engineering and Naval Architecure in Zagreb, Croatia. At the time being, he is 3rd year phd student and works for Laboratoire de Mécanique et Technologie (LMT) Cachan and Centre des Matériaux (CdM) Evry under COMINSIDE project founded by french Agence Nationale.

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