Simulation Analysis of Distribution of Fragments of Hypervelocity 93W Projectile Impacting on a Steel Plate Target

MA Kun;LI Mingrui;CHEN Chunlin;FENG Na;ZHAO Nan;KE Ming;ZHOU Gang

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  • Sponsored by: China Association for Science and Technology (CAST)

    Editor-In-Chief: Xu Yida

    ISSN 1000-1093

    　

  • Hosted By: China Ordnance Society

    Published By: Acta Armamentarii

    CN 11-2176/TJ

Acta Armamentarii, a Chinese monthly journal, was first published in 1979. The journal is supervised by China Association for Science and Technology, sponsored by China Ordnance Society，and edited and published by Editorial Board of Acta Armamentarii. The Journal is included in all important domestic databases，and also collected by Engineering Index (EI, USA), Chemical Abstracts (CA, USA), Science Abstracts (SA, UK）, Abstract Journal (AJ, Russia), and Current Bibliography on Science and Technology(CBST).Acta Armamentarii has been selected into the journal Of Ordnance Science and Technology (Weapons Industry) Field Of High Quality Scientific and Technological Periodical Classification Catalogue (2022 edition), ranking T1, and the journal of Automotive Engineering Field of High Quality Scientific and technological Periodical classification Catalogue, ranking T2.
Acta Armamentarii ›› 2019, Vol. 40 ›› Issue (10) : 2022-2031. DOI: 10.3969/j.issn.1000-1093.2019.10.007
Paper

Simulation Analysis of Distribution of Fragments of Hypervelocity 93W Projectile Impacting on a Steel Plate Target

  • MA Kun1, LI Mingrui1, CHEN Chunlin1, FENG Na1, ZHAO Nan1, KE Ming1,2, ZHOU Gang1
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Abstract

In order to study the distribution of fragments of hypervelocity 93W projectile impacting on a steel plate target, the AUTODYN software is used to do the smoothed particle hydrodynamics simulation, and the GRAY solid-liquid phase equation of state is added as a user subroutine in the software. The hypervelocity impact process under the conditions of different impact velocities and body diameters was simulated, and the simulated results were verified by the experimental results. The distribution characteristics of mass, quantity, momentum, temperature and other parameters of the fragments were obtained based on the breadth-first search algorithm for fragments recognition. The study results show that the quantity and quality of fragments are mainly concentrated at the front part of fragment group, are less at its middle part, and are increased at its tail part. The big mass fragments are mainly concentrated at the front and tail parts of fragment group, and their lateral velocities are low. The front part of the fragment group has higher quality, and higher axial and lateral momenta, which represents the damage power of fragment group. High temperature fragments mainly distribute in the middle to front part of the fragments group, and there are many low temperature fragments at the front and tail part of the fragment group. The resultant velocity of high temperature fragments is above the medium velocity of all fragments, and the fragments with high resultant velocity are distributed in all temperature sections. A fragment group with more fragments and higher total mass can be produced by increasing the diameter of projectile than increasing the impact velocity. The change of diameter of projectile or impact velocity has a more significant effect on the front part of fragment group, so the damage power of fragment group can be effectively improved. Key

Key words

tungstehalloyprojectile / hypervelocityimpact / distributionoffragments / smoothedparticlehydrodynamics / GRAYequationofstate

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MA Kun, LI Mingrui, CHEN Chunlin, FENG Na, ZHAO Nan, KE Ming, ZHOU Gang. Simulation Analysis of Distribution of Fragments of Hypervelocity 93W Projectile Impacting on a Steel Plate Target. Acta Armamentarii. 2019, 40(10): 2022-2031 https://doi.org/10.3969/j.issn.1000-1093.2019.10.007

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第40卷
第10期2019年10月兵工学报ACTA
ARMAMENTARIIVol.40No.10Oct.2019

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