Mini Momentum Probe Technique for Diagnosis of Micro-spall Fracture of Material

doi:10.3969/j.issn.1000-1093.2017.09.009

Abstract

Abstract: A mini momentum probe is designed to diagnose the micro-spall fractures of material. On the basis of traditional momentum sensor, the structure of the sensing interface and protective film is improved, and the numerical simulation and joint diagnosis experiment technology are used to research the speed measurement results of mini momentum probe. Research result shows that the improved momentum probe can be used to obtain steady high quality signals, and the test duration can be extended; and the probe miniaturization leads to a deviation of measured speeds at some time intervals, but the measured speeds before the first speed peak time are credible, and can be used for the quantitative diagnosis of spatial density distribution of micro-spall fracture of material.Key

Key words: explosionmechanics, micro-spallfracture, momentumprobe, Asaywindow, miniaturization

CLC Number:

O384

CHEN Hao-yu, HONG Ren-kai, CHEN Yong-tao, ZHANG Shi-wen, REN Guo-wu, MO Jun-jie. Mini Momentum Probe Technique for Diagnosis of Micro-spall Fracture of Material[J]. Acta Armamentarii, 2017, 38(9): 1729-1735.

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第38卷
第9期2017 年9月兵工学报ACTA
ARMAMENTARIIVol.38No.9Sep.2017

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