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RISA Prediction Model for Ablation Fluence Threshold in Femtosecond Laser Processing of Fused Silica
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The manufacture of micro–nano structures in transparent dielectrics is becoming increasingly important due to the applications in medical and biological sciences. The femtosecond pulsed laser, with its selectivity, high ...
Anisotropic Statistics of Lagrangian Structure Functions and Helmholtz Decomposition
Publisher: American Meteorological Society
Heat Accumulation in Ultrafast Laser Scanning of Fused Silica
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this work, a numerical model to predict the heat accumulation of fused silica induced by ultrafast laser scanning is put forward, which is composed of an ionization model and a steady electromagnetic model. The ionization ...
Design of Metamaterial for Broadband Sound Absorption Through Double Resonances
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Broadband acoustic absorber via a structure with sub-wavelength thickness is of great and continuing interest in research and engineering communities. To broaden the absorption band of acoustic absorbers, common methods ...
Experiment-Based Quantitative Analysis of Picosecond Pulse-Induced Morphological Changes in Fused Silica
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Due to its excellent quality, fused silica has been widely used in various industrial applications. The nonlinear absorptive nature of ultrafast laser pulses enables the induction of morphological changes within the bulk ...
A Two-Step Model for Multiple Picosecond and Femtosecond Pulses Ablation of Fused Silica
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: The morphology of microchannels machined by multiple ultrafast laser pulses with 500 fs and 8 ps durations on fused silica plate is predicted by a two-step model with experimental validation in present work. A spike structure ...
A Model-Guided Neural Network for the Prediction of Creep Behavior Under in-Service Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Data-driven neural network methods have been widely applied for the prediction of stress–strain behavior, but have proven ill-suited for the extrapolation of time-dependent creep behavior. To overcome this problem, we ...
A Wear Calculation Method for Helical Gear Based on Irreversible Thermodynamics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The accurate prediction of wear depth is of great significance to the failure evaluation of gear transmission. At present, the traditional wear calculation method is still unable to accurately predict the wear depth of ...
Heating Position Planning in Laser Forming of Single Curved Shapes Based on Probability Convergence
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Inverse problem in laser forming involves the heating position planning and the determination of heating parameters. In this study, the heating positions are optimized in laser forming of single curved shapes based on the ...
Experiment of Heat Transfer to Supercritical Water Flowing in Vertical Annular Channels
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An experimental study of heat transfer to supercritical water has been performed at Xi'an Jiaotong University with a vertical annular tube. The annular test sections were constructed with an annular gap of 2 mm and an ...