Jeffrey W. Kysar

TL;DR: In this article, numerical and experimental aspects of laser shock peening on two different crystal surfaces (110 and (114) of aluminum single crystals are studied, where the lattice rotations on the top surface and cross section are measured using electron backscatter diffraction, while residual stress is characterized using X-ray microdiffraction.

TL;DR: Ungar et al. as mentioned in this paper analyzed X-ray micro-diffraction profiles using a synchrotron light source via Fourier transformation for single crystal Aluminum and Copper samples subjected to micro-scale laser shock peening.

TL;DR: Gene therapy for hearing loss is a promising treatment for restoring hearing function by addressing innate defects and recent technological advances in inner ear drug delivery techniques pose exciting opportunities for progress in gene therapy.

Abstract: As the result of quickly increased requirement in many industrial products resulting from microtechnology, laser thermal microforming and microsurface treatment [microscale laser shock peening (μLSP)] have been well studied. By combining the beneficial effects of these two processes with a controlled bending deformation, microscale laser peen forming (μLPF) attracts more attention recently since it not only improves the fatigue life of the material but also shapes microscale metallic parts at the same time. In the present study, μLSP of single crystal aluminum was presented to study anisotropic material response. Local plastic deformation was characterized by lattice rotation measured through electron backscatter diffraction. Residual stress distributions of both sides of a peened sample, characterized by x-ray microdiffraction, were compared with the results obtained from finite element method simulation. μLPF anisotropic behavior was investigated in three effective slip systems via both the anisotropic ...

TL;DR: In this paper, a self-similar framework was proposed to analyze the wedge indentation problem of an elastic-viscoplastic single crystal, where the stress and slip rate fields around the moving contact point singularity were analyzed.