Mr. Chenghua Wei Profile

Chenghua Wei

at Northwest Institute of Nuclear Technology

SPIE Involvement:

Author

Publications (20)

Proceedings Article | 22 December 2022 Paper

Paper

Feasibility analysis of double-sided laser irradiation for testing mechanical properties of materials at elevated temperatures

Jiawei Wang, Weiping Liu, Yuwei Lv, Chenghua Wei, Shuang Zhang, Biao Li, Guobin Feng, Bin Li

Proceedings Volume 12459, 1245905 (2022) https://doi.org/10.1117/12.2654165

KEYWORDS: Laser irradiation, Composites, Temperature metrology, Thermography, Finite element methods, Continuous wave operation, Absorption, Laser energy, Control systems, Silicon

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Proceedings Article | 22 December 2022 Paper

Paper

Evolution of microwave transmission decay in glass fiber reinforce epoxy composite induced by laser ablation carbonization

Yuwei Lv, Yongxiang Zhu, Zhiliang Ma, Taotao Wu, Lixiong Wu, Chenghua Wei, Jiawei Wang, Weiping Liu, Guobin Feng, Lijun Wang

Proceedings Volume 12459, 124590J (2022) https://doi.org/10.1117/12.2657034

KEYWORDS: Microwave radiation, Carbon, Composites, Laser ablation, Raman spectroscopy, Dielectrics, Microcrystalline materials, Epoxies, Laser irradiation, Glasses

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Proceedings Article | 29 March 2019 Paper

Paper

A method of mechanical properties temperature dependence test by two-sided laser irradiation heating

Jiawei Wang, Yongxiang Zhu, Chenghua Wei, Yuwei Lv, Zhiliang Ma, Lijun Wang

Proceedings Volume 11046, 110461M (2019) https://doi.org/10.1117/12.2524025

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Proceedings Article | 29 March 2019 Paper

Paper

Laser ablation properties of glass fiber reinforced epoxy composite under obliquely impinging air jet

Chenghua Wei, Zhiliang Ma, Yongxiang Zhu, Jiawei Wang, Weiping Liu

Proceedings Volume 11046, 110462U (2019) https://doi.org/10.1117/12.2524440

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Proceedings Article | 29 March 2019 Paper

Paper

Pyrolysis gas diffusion model in kevlar/nomex honeycomb structure on laser irradiating

Weiping Liu, Chenghua Wei, Lixiong Wu, Zhiliang Ma, Yongxiang Zhu, Jiawei Wang

Proceedings Volume 11046, 110461K (2019) https://doi.org/10.1117/12.2523557

KEYWORDS: Diffusion, Mathematical modeling, Epoxies, Laser irradiation, Gases, Instrument modeling, Laser processing, Laser applications, Laser-matter interactions, Process modeling

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Proceedings Article | 29 March 2019 Paper

Paper

Characterization of graphite produced by laser irradiated glass fiber reinforced epoxy resin

Yuwei Lv, Yongxiang Zhu, Taotao Wu, Chenghua Wei, Zhiliang Ma, Lijun Wang

Proceedings Volume 11046, 110460W (2019) https://doi.org/10.1117/12.2524295

KEYWORDS: Laser irradiation, Laser ablation, Glasses, Epoxies, Raman spectroscopy, Composites, Laser applications

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Proceedings Article | 29 March 2019 Paper

Paper

Temperature-dependent absorptivity evolution of gray epoxy painted iron under CW laser irradiation

T. T. Wu, H. Yan, C. H. Wei, Y. X. Zhu, M. Y. Song, L. X. Wu, Y. W. Lv, L. J. Wang

Proceedings Volume 11046, 1104626 (2019) https://doi.org/10.1117/12.2524464

KEYWORDS: Metals, Coating, Epoxies, Iron, Laser irradiation, Continuous wave operation, Light scattering, Temperature metrology, Absorption, Oxides

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Proceedings Article | 12 May 2017 Paper

Paper

The influence of roughness on reflectivity evolution of iron irradiated by 1064nm CW laser

Taotao Wu, Yongxiang Zhu, Chenghua Wei, Menlian Zhou, Lijun Wang

Proceedings Volume 10173, 1017321 (2017) https://doi.org/10.1117/12.2267822

KEYWORDS: Metals, Polishing, Surface roughness, Surface finishing, Oxidation, Oxides, Reflectivity, Iron, Continuous wave operation, Laser irradiation

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Proceedings Article | 12 May 2017 Paper

Paper

Melt removal mechanism by transverse gas flow during laser irradiation

Cheng-hua Wei, Yong-xiang Zhu, Meng-lian Zhou, Zhi-liang Ma, Tao-tao Wu

Proceedings Volume 10173, 1017303 (2017) https://doi.org/10.1117/12.2267060

KEYWORDS: Metals, Cameras, Liquids, Laser-matter interactions, Solids, Tin, Visualization, Beam shaping, Gas lasers, Laser irradiation

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Proceedings Article | 12 May 2017 Paper

Paper

Pyrolysis responses of kevlar/epoxy composite materials on laser irradiating

Wei-ping Liu, Cheng-hua Wei, Meng-lian Zhou, Zhi-liang Ma, Ming-ying Song, Li-xiong Wu

Proceedings Volume 10173, 101730O (2017) https://doi.org/10.1117/12.2266617

KEYWORDS: Molecular lasers, Sensors, Temperature metrology, Laser-matter interactions, Analytical research, Glasses, Laser applications, Statistical analysis, Gas sensors, Composites

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Proceedings Article | 12 May 2017 Paper

Paper

Degradation of shear stiffness of Nomex honeycomb sandwich panel in laser irradiation

Jiawei Wang, Houman Jiang, Lixiong Wu, Yongxiang Zhu, Chenghua Wei, Zhiliang Ma, Lijun Wang

Proceedings Volume 10173, 101730A (2017) https://doi.org/10.1117/12.2268257

KEYWORDS: Laser irradiation, Sensors, Composites, Laser-matter interactions, Adhesives, Camera shutters, Oscilloscopes, Defense technologies, Thermal effects, Aerospace engineering

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Proceedings Article | 12 May 2017 Paper

Paper

Influence of the mechanical coupling to aluminum target by Nd:YAG pulsed laser with CW laser

Y. Cai, Y. X. Zhu, M. L. Zhou, C. H. Wei

Proceedings Volume 10173, 101730M (2017) https://doi.org/10.1117/12.2268347

KEYWORDS: Plasma, Laser irradiation, Laser optics, Sensors, Temperature metrology, Laser energy, Pulsed laser operation, Aluminum, Nd:YAG lasers, Continuous wave operation

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Proceedings Article | 4 May 2015 Paper

Paper

Extinction characterization of soot produced by laser ablating carbon fiber composite materials in air flow

Weiping Liu, Zhiliang Ma, Zhenrong Zhang, Menglian Zhou, Chenghua Wei

Proceedings Volume 9543, 954305 (2015) https://doi.org/10.1117/12.2178229

KEYWORDS: Particles, Mass attenuation coefficient, Composites, Fiber lasers, Laser applications, Carbon, Refractive index, Absorption, Energy coupling, Analytical research

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Proceedings Article | 4 May 2015 Paper

Paper

TiO2/SiO2 dielectric film damage induced by combination of pulsed and continuous wave infrared laser irradiation

Menglian Zhou, Yue Cai, Minbo He, Lijun Wang, Chenghua Wei

Proceedings Volume 9543, 954306 (2015) https://doi.org/10.1117/12.2178230

KEYWORDS: Pulsed laser operation, Continuous wave operation, Dielectrics, Laser irradiation, Carbon dioxide lasers, Thin films, Visible radiation, Electromagnetic radiation, Laser induced damage, Near infrared

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Proceedings Article | 4 May 2015 Paper

Paper

The influence of molten pool geometry on forced convective heat transfer

Cheng-hua Wei, Bo-lang Fang, Wei-ping Liu, Li-jun Wang, Zhi-liang Ma

Proceedings Volume 9543, 954304 (2015) https://doi.org/10.1117/12.2181909

KEYWORDS: Convection, Numerical analysis, Turbulence, Mathematical modeling, Laser applications, Laser-matter interactions, 3D vision, Numerical simulations, Mathematics, Laser development

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Proceedings Article | 16 May 2013 Paper

Paper

Experimental investigation on the damage effect of steel structure by continuous laser under preloaded invariable stretching stress

Yang Zhu, Xisheng Ye, Xinwei Lin, Chenghua Wei, Lijun Wang, Deyan Cheng

Proceedings Volume 8796, 87960P (2013) https://doi.org/10.1117/12.2011257

KEYWORDS: Laser damage threshold, Laser energy, Laser induced damage, Laser applications, Laser-matter interactions, High speed cameras, Temperature metrology, Edge roughness, Metals, Laser development

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Proceedings Article | 16 May 2013 Paper

Paper

Laser coupling effects on structural material under different surface conditions

Guobing Feng, Chenghua Wei, Lixiong Wu, Linzhu Chen, Xinwei Lin, Jianmin Zhang, Zhiliang Ma

Proceedings Volume 8796, 87960O (2013) https://doi.org/10.1117/12.2011252

KEYWORDS: Reflectivity, Reflectometry, Integrating spheres, Composites, Optical simulations, Metals, Laser-matter interactions, Temperature metrology, Laser irradiation, Oxidation

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Proceedings Article | 16 May 2013 Paper

Paper

Analysis and simulation to excessive saturation effect of CCD

Zhen Zhang, Yue Cai, Jianmin Zhang, Chenghua Wei, Guobin Feng, Xisheng Ye

Proceedings Volume 8796, 87960F (2013) https://doi.org/10.1117/12.2011088

KEYWORDS: Charge-coupled devices, Clocks, Capacitors, Device simulation, Amplifiers, Switches, Optical sensors, Optical simulations, Video, Signal processing

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Proceedings Article | 16 May 2013 Paper

Paper

Laser-induced damage degree assessment for filters based on static Bayesian network

Menglian Zhou, Jianmin Zhang, Deyan Cheng, Xinwei Lin, Chenghua Wei

Proceedings Volume 8796, 87960H (2013) https://doi.org/10.1117/12.2011130

KEYWORDS: Optical filters, Laser induced damage, Laser damage threshold, Photomicroscopy, Thin films, Data processing, Light scattering, Laser scattering, Scattering, Collimators

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Proceedings Article | 16 May 2013 Paper

Paper

Mathematical model of 30CrMnSi alloy steel absorptivity evolution under 1.07μm cw-laser irradiation

Chenghua Wei, Linzhu Chen, Weiping Liu, Menglian Zhou, Zhen Zhang

Proceedings Volume 8796, 87960V (2013) https://doi.org/10.1117/12.2011318

KEYWORDS: Oxides, Reflectivity, Mathematical modeling, Metals, Temperature metrology, Laser irradiation, Beam splitters, Optical simulations, Laser-matter interactions, Oxidation

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Showing 5 of 20 publications

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