2017
DOI: 10.2207/qjjws.35.151s
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Dynamic Thermo-Elasto-Plasticity FE Analysis on Nano- and Femto-second Laser Shock Peenings for a Ferrite Material

Abstract: Laser shock peening attracts increasing attention as one of techniques to improve fatigue life of materials and structures. The application of this technique generally induces a compressive residual stress field, modifies the geometrical shape and alters the material hardening. Nanosecond laser peening, which uses nanosecond laser pulse is necessary to be carried out in immersed water for the confinement of the plasma. On the other hand, femtosecond laser peening, which uses femtosecond laser pulse, can be car… Show more

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