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首页> 外文期刊>Journal of Applied Physics >Measurement and characterization of nanosecond laser driven Shockwaves utilizing photon Doppler velocimetry
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Measurement and characterization of nanosecond laser driven Shockwaves utilizing photon Doppler velocimetry

机译：利用光子多普勒速度测量和表征纳秒激光驱动冲击波的测量与表征

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摘要

Laser driven Shockwaves from nanosecond pulsed lasers were evaluated for pressure magnitude and duration using photon Doppler velocimetry (PDV). Specific investigations were performed on Ti-6A1-4V alloys and 7085-T7651 aluminum alloys with laser full-width half-max pulse lengths ranging from 6 to 20 ns and laser intensities of 2-10 GW/cm~2. The rear surface velocity data obtained using a heterodyne PDV system and an automated signal processing algorithm are demonstrated and utilized to capture rear surface velocity profiles. Peak shockwave pressures measured under bare surface water confinement reached approximately 6 GPa. Shockwave loading durations were observed to correspond with laser pulse durations with impulse loading times on the order of 2×-4× the laser pulse duration.
机译：使用光子多普勒速度（PDV）评估来自纳秒脉冲激光器的激光驱动的冲击波，用于压力幅度和持续时间。 在Ti-6a1-4V合金和7085-T7651铝合金上进行特异性研究，激光全宽半最大脉冲长度范围为6至20ns，激光强度为2-10 gw / cm〜2。 使用外差PDV系统获得的后表面速度数据和自动信号处理算法进行说明并用于捕获后表面速度分布。 在裸露的表面水限制下测量的峰值冲击压力达到约6GPa。 观察到冲击波加载持续时间与激光脉冲持续时间对应，脉冲脉冲持续时间为2×-4×激光脉冲持续时间。

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  • 来源
    《Journal of Applied Physics》 |2021年第20期|205101.1-205101.14|共14页
  • 作者

    Stanley Bovid; Allan Clauer; Micheal Kattoura; Anupam Vivek; Glenn Daehn; Stephen Niezgoda;

  • 作者单位

    LSP Technologies Inc. 6161 Shamrock Court Dublin Ohio 43016 USA Department of Materials Science and Engineering The Ohio State University Fontana Laboratories 2136 140 W 19th Ave. Columbus Ohio 43210 USA;

    LSP Technologies Inc. 6161 Shamrock Court Dublin Ohio 43016 USA;

    LSP Technologies Inc. 6161 Shamrock Court Dublin Ohio 43016 USA;

    Department of Materials Science and Engineering The Ohio State University Fontana Laboratories 2136 140 W 19th Ave. Columbus Ohio 43210 USA;

    Department of Materials Science and Engineering The Ohio State University Fontana Laboratories 2136 140 W 19th Ave. Columbus Ohio 43210 USA;

    Department of Materials Science and Engineering The Ohio State University Fontana Laboratories 2136 140 W 19th Ave. Columbus Ohio 43210 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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