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<p>Experiments and simulations on high strain rate (10<sup>6</sup> s<sup>− 1</sup>) shear localization were performed by shock loading a thin metal sample backed by a centrally perforated plate. This setup caused the sample material to extrude through the plate and undergo a shearing action like that of a hole punch. Data included both photon Doppler velocimetry and high-speed radiography. Simulations using a new shear failure model were performed and parameters were determined for stainless steel, vanadium, and Ti-6Al-4&#xa0;V. This demonstrated how the data collected can be used to inform any given damage model.</p>

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Shock-Driven Extrusion as a Tool for Studying Shear Localization

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • D. Bober,
  • R. Casperson

摘要

Experiments and simulations on high strain rate (106 s− 1) shear localization were performed by shock loading a thin metal sample backed by a centrally perforated plate. This setup caused the sample material to extrude through the plate and undergo a shearing action like that of a hole punch. Data included both photon Doppler velocimetry and high-speed radiography. Simulations using a new shear failure model were performed and parameters were determined for stainless steel, vanadium, and Ti-6Al-4 V. This demonstrated how the data collected can be used to inform any given damage model.