公开(公告)号：US09551692B2

公开(公告)日：2017-01-24

申请号：US14496115

申请日：2014-09-25

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Jennifer L. Gottfried

IPC: G01N29/24 ,  G01N29/024 ,  G01N29/44

CPC classification number: G01N29/2418 ,  G01N29/024 ,  G01N29/4445 ,  G01N29/4472 ,  G01N2291/011

Abstract: A method for estimating the detonation performance of a material is executed by first preparing a small sample of the material to be tested. That sample is lased with a laser beam having sufficient energy to induce a plasma from a portion of the sample and to produce a shock wave, without detonation of the sample. The velocity of the shock wave is then measured at different times. And a characteristic shock velocity determined for the material based on the relationship between shock velocity and time. The characteristic shock velocity represents the velocity of the shock wave at the point in time when the shock front expands freely without additional energy input from the plasma or subsequent chemical reactions. The characteristic shock velocity can be used to determine whether a material is non-energetic or energetic; if it is energetic, the estimated detonation performance can be determined.

Abstract translation: 通过首先制备待测试材料的小样品来执行用于估计材料的爆炸性能的方法。 该样品用具有足够能量的激光束照射以从样品的一部分诱导等离子体并产生冲击波，而不会引起样品的爆炸。 然后在不同时间测量冲击波的速度。 并且基于冲击速度和时间之间的关系确定材料的特征冲击速度。 特征冲击速度表示在冲击前端自由扩展的时间点的冲击波的速度，而没有额外的来自等离子体的能量输入或随后的化学反应。 特征冲击速度可用于确定材料是否是非能量的或能量的; 如果能量很高，则可以确定估计的爆震性能。

公开(公告)号：US20160091464A1

公开(公告)日：2016-03-31

申请号：US14496115

申请日：2014-09-25

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Jennifer L. Gottfried

IPC: G01N29/24

CPC classification number: G01N29/2418 ,  G01N29/024 ,  G01N29/4445 ,  G01N29/4472 ,  G01N2291/011

Abstract: A method for estimating the detonation performance of a material is executed by first preparing a small sample of the material to be tested. That sample is lased with a laser beam having sufficient energy to induce a plasma from a portion of the sample and to produce a shock wave, without detonation of the sample. The velocity of the shock wave is then measured at different times. And a characteristic shock velocity determined for the material based on the relationship between shock velocity and time. The characteristic shock velocity represents the velocity of the shock wave at the point in time when the shock front expands freely without additional energy input from the plasma or subsequent chemical reactions. The characteristic shock velocity can be used to determine whether a material is non-energetic or energetic; if it is energetic, the estimated detonation performance can be determined.

Abstract translation: 通过首先制备待测试材料的小样品来执行用于估计材料的爆炸性能的方法。 该样品用具有足够能量的激光束照射以从样品的一部分诱导等离子体并产生冲击波，而不会引起样品的爆炸。 然后在不同时间测量冲击波的速度。 并且基于冲击速度和时间之间的关系确定材料的特征冲击速度。 特征冲击速度表示在冲击前端自由扩展的时间点的冲击波的速度，而没有额外的来自等离子体的能量输入或随后的化学反应。 特征冲击速度可用于确定材料是否是非能量的或能量的; 如果能量很高，则可以确定估计的爆震性能。