Pentaerythritol tetranitrate (PETN) is a commonly used high explosive (HE) for detonator, fusing, and booster assemblies. Despite its popularity, detailed detonation performance data is relatively sparse. The large operational density range of PETN requires a significant number of tests to characterize experimentally. Additionally, its short reaction zone requires test assemblies to be very small relative to other common explosives to quantify the effect of confinement and geometry on the explosive performance. In this study, PETN rate sticks and cylinder tests are fielded at the smallest known scales (3-mm HE diameter) at a density of 1.65 g/cm³. The resulting data verifies that the flow satisfies continuum measurement at this scale, and analysis yields a Detonation Shock Dynamics (DSD) propagation law and Jones-Wilkins-Lee (JWL) product EOS for programmed burn detonation modeling. This work also provides the first recorded front shape measurements of PETN. Together with previously obtained data and models for other explosive densities, a scaling analysis is presented of the detonation performance of PETN for a wide range of explosive densities.

中文翻译：

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季戊四醇四硝酸酯 (PETN) 高炸药的爆轰性能实验、建模和比例分析

季戊四醇四硝酸酯 (PETN) 是一种常用的高能炸药 (HE)，用于雷管、引信和助推器组件。尽管它很受欢迎，但详细的爆轰性能数据相对稀少。PETN 的大工作密度范围需要大量测试来进行实验表征。此外，它的短反应区要求测试组件相对于其他常见炸药非常小，以量化限制和几何形状对炸药性能的影响。^{在这项研究中，以 1.65 g/cm 3}的密度以最小的已知尺度（3-mm HE 直径）进行 PETN 速率棒和圆柱测试. 所得数据验证该流量满足此规模的连续测量，分析产生爆震冲击动力学 (DSD) 传播定律和 Jones-Wilkins-Lee (JWL) 乘积 EOS，用于程序化燃烧爆震建模。这项工作还提供了首次记录的 PETN 正面形状测量值。连同先前获得的其他炸药密度的数据和模型，对各种炸药密度的 PETN 的爆轰性能进行了比例分析。