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<p>This study employs the Eulerian peridynamic model to investigate microjetting phenomena from a grooved Sn surface under double-shock loading, with particular emphasis on the dynamic evolution of secondary microjetting. The formation mechanisms are analyzed through variations in particle velocity, and the origins of the ejected mass are examined in detail. In addition, the effects of loading parameters, such as the duration and amplitude of the first shock and the amplitude of the second shock, are systematically evaluated. The results demonstrate that prolonging the first shock duration, increasing its amplitude, or reducing the amplitude of the second shock leads to decreases in both spike velocity and ejected mass during secondary microjetting. The simulations further reveal that the occurrence of secondary microjetting is primarily governed by the bubble morphology generated in the initial stage. Consequently, the concept of bubble morphology offers new insights into understanding and predicting secondary microjetting behavior.</p>

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Numerical investigation of double shock-induced microjetting from a grooved Sn sample via Eulerian peridynamics

  • 期刊论文

  • 发表日期：

    2026年7月12日

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  • Chen Yao,
  • Fei Han,
  • Ling Zhang,
  • Xiaoliang Deng

摘要

This study employs the Eulerian peridynamic model to investigate microjetting phenomena from a grooved Sn surface under double-shock loading, with particular emphasis on the dynamic evolution of secondary microjetting. The formation mechanisms are analyzed through variations in particle velocity, and the origins of the ejected mass are examined in detail. In addition, the effects of loading parameters, such as the duration and amplitude of the first shock and the amplitude of the second shock, are systematically evaluated. The results demonstrate that prolonging the first shock duration, increasing its amplitude, or reducing the amplitude of the second shock leads to decreases in both spike velocity and ejected mass during secondary microjetting. The simulations further reveal that the occurrence of secondary microjetting is primarily governed by the bubble morphology generated in the initial stage. Consequently, the concept of bubble morphology offers new insights into understanding and predicting secondary microjetting behavior.