Characterization of Heterogeneous Response of Al Bicrystal Subject to Micro Scale Laser Shock Peening |
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| Authors: | S Vukelic I C Noyan J W Kysar Y L Yao |
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| Institution: | (1) Mechanical Engineering Department, Bucknell University, Pennsylvania, PA 17837, USA;(2) Program in Materials Science, Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY 10027, USA;(3) Mechanical Engineering Department, Columbia University, New York, NY 10027, USA |
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| Abstract: | This letter shows the ability to perform characterization of the strain field in an aluminium bicrystal subject to plane strain
condition induced by micro scale laser shock peening. Intensity contrast method, previously used in topographic measurements
of strain fields in thin films is employed here. Our results show that this method is applicable for measurements of the plastically
deformed bulk materials. Moreover, heterogeneous response of the grain boundary is observed as periodic nature of deformation. |
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