High Strain‐Rate Material Model Validation for Laser Peening Simulation
نویسندگان
چکیده
منابع مشابه
Massive parallel laser shock peening: Simulation, analysis, and validation
Laser shock peening (LSP) is a transient process with laser pulse duration time on the order of 10 ns, real time in situ measurement of laser/material interaction is very challenging. LSP is usually performed in a massively parallel mode to induce uniform compressive residual stress across the entire surface of the workpiece. The purpose of this paper is to investigate the effects of parallel m...
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The response of materials after microscale laser shock peening (mLSP) was experimentally characterized and compared with the theoretical prediction from FEM analysis in microlength level. Since mLSP is predominantly a mechanical process instead of a thermal process, the characterization focuses on mechanical properties and associated microstructures. An X-ray microdiffraction technique was appl...
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Microscale Laser Shock Peening (LSP) is a technique that can be potentially applied to manipulate the residual stress distributions in metal film structures and thus improve the reliability of micro-devices. This paper reports high-spatial-resolution characterization of shock treated copper thin films on single-crystal silicon substrates, where scanning x-ray microtopography is used to map the ...
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By using finite element analysis, we proposed an applicable finite element method of laser shock peening (LSP) and discussed various parameters, such as solution time, stability limit, dynamic yield stress, peak pressure, pressure pulse duration, laser spot size, and multiple LSP. The effects of parameters related to the finite element simulation of the LSP process on the residual stresses of 3...
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ژورنال
عنوان ژورنال: The Journal of Engineering
سال: 2015
ISSN: 2051-3305,2051-3305
DOI: 10.1049/joe.2015.0118