From Incident Laser Pulse to Residual Stress : A Complete and Self-Closed Model for Laser Shock Peening  

Oleh:

Yung, C. Shin ; Benxin, Wu

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Journal of Manufacturing Science and Engineering vol. 129 no. 1 (2007), page 117-125.
Topik: laser; laser pulse; residual stress; self - closed model; laser shock peening

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ93.9 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Laser shock peening (LSP) is emerging as a competitive alternative technology to classical treatments to improve fatigue and corrosion properties of metals for a variety of important applications. LSP is often performed under a water confinement regime, which involves several complicated physical processes. A complete and self - closed LSP model is presented in this paper, which requires a sequential application of three submodels : a breakdown - plasma model, a confined - plasma model, and a finite element mechanics model. Simulation results are compared with experimental data in many aspects under a variety of typical LSP conditions, and good agreements are obtained.

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