AERONAUTICA MILITARE 1^DIVISIONE Bullet Impact Test ...

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AERONAUTICA MILITARE

COMANDO LOGISTICO – 1^DIVISIONE

Centro Sperimentale di Volo

IM AssessmentBullet Impact Test Applied To Infrared Decoy Flare

Magg. Silvana Grossi

Magg. Silvana GROSSI

AIMVerify the response of IR decoy flare whenhit by a Bullet

TOPIC Different types IR DF tested Test Procedures Preliminary Result Future Work

IM AssessmentBullet Impact Test Applied To Infrared Decoy Flare

24 novembre 2016 Magg. Silvana GROSSI

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Design and Performance Features

Energetic Material Composition

IR Decoy Flare Tested

In Service or Prototype Flares

Magg. Silvana GROSSI 24 novembre 2016

NC and NG (DB)

Energetic Material Composition

MTV

Ammonium Perchlorate (NH4ClO4)


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Test Procedures

Standard Regulation

STANG 4241 “Bullet Impact, Munition TestProcedures “

AOP 39 “Guidance on the Assessment andDevelopment of Insensitive Munitions (IM)

Transport of dangerous good Manual of Testsand Criteria


Calibre 7,62 [.308 (7,62 x 51 NATO)]. Fire Distance 100m. Bullet weight 9,65g; Speed @ 100m distance : 778 m/s; Ek @ 100m: 2920 J

Rif. JANE’S AMMUNITION HANDBOOK 2007-2008

Calibre 8,58 [.338 LAPUA MAGNUM (8,58 x 71)]Fire Distance 100m. Bullet weight 16,2 g; Speed @ 0m distance : 915 m/s Speed @ 200m distance : 820 m/s Ek @ 0 m: 6766 J Ek @ 200m: 5318 J

Test Procedures


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target100 m

8 m15 m

High Speed Camera 1

High Speed Camera 2

Test Arrangement

Test Procedures


TARGET CONFIGURATION

Single Flare Unconfined

Single Flare Confined – Two Flares Confined

(Donor/Acceptor)

Multiple Flares loaded in a

Magazine/Dispenser – Different orientations

Test Procedures


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Preliminary Result

NC and NG based composition


Preliminary Result



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Preliminary Result



Preliminary Result


F1


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Preliminary Result


F1


Preliminary Result


F1


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Preliminary Result


F3

F2


Preliminary Result


F3

F2


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F1.avi

F3.mp4

F2.mp4

F3.mp4

F2.mp4

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Preliminary Result


F3

F2


Preliminary Result


F3

F2


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Preliminary Result


F3

F2


MTV composition

F4

Max T. 1508 °C

Preliminary Result


F3.mp4

F2.mp4

F3.mp4

F2.mp4

F3.mp4

F2.mp4

F4.avi

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MTV composition

F4

Max T. 1508 °C

Preliminary Result


MTV composition

F4

Max T. 1508 °C

Preliminary Result


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MTV composition

F5

F6

Preliminary Result


MTV composition

F5

F6

Preliminary Result


F4.avi

F4.avi

F5.mp4

F6.mp4

F5.mp4

F6.mp4

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MTV composition

F5

F6

Preliminary Result


MTV composition

F5

F6

Preliminary Result


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MTV composition

F5

F6

Preliminary Result


MTV composition

F5

F6

Preliminary Result


F5.mp4

F6.mp4

F5.mp4

F6.mp4

F5.mp4

F6.mp4

F5.mp4

F6.mp4

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Ammonium Perchlorate (NH4ClO4) based composition

F7

Max T. 925°C

Preliminary Result



F7

Max T. 925°C

Preliminary Result


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F7

Max T. 925°C

Preliminary Result



F8

Preliminary ResultPreliminary Result


F7.avi

F7.avi

F7.avi

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F8




F8



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F8




F8



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F8




F9

Preliminary Result


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F9

Preliminary Result



F9

Preliminary Result


F8.avi

F9.mp4

F9.mp4

F9.mp4

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F9

Preliminary Result



F9

Preliminary Result


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F9

Preliminary Result


Reaction Type (Deflagration, Explosion, DDT

etc)

Confinement Effect

Symphatetic Reaction Occurring

Major Evidences



F9.mp4

F9.mp4

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FLARE Evidence

NC e NG based

Ignition only if confined

Partial material combustion

It seems initial explosion followed by deflagration reaction

Scattering large portion burning and unburned material.

No Sympathetic Reaction

It seems Reaction Type V lead Type IV

MTV

Ignition confined and unconfined

Complete material combustion

Deflagration Reaction

Higt Temperature cause melting bullet

It seems Type IV Reaction

NH4ClO4 based

Ignition confined or unconfined

Rapid Combustion

Explosion/low order detonation

Propably DDT

Sympathetic reaction occurring

Extensive fracture of casing

Long Distance scattering burning and unburned material

Witness plate deformation

Possible Type III reaction (depend on NH4ClO4 percentage)

Preliminary Result


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Future Work

1. Increase information about real scenario Threat during Transport Threats during Storage

2. Improve test conditions and parameter measurement (see blast wave measure)

3. Focus on New Formulation used during experimental test


24 novembre 2016 Magg. Silvana GROSSI

AERONAUTICA MILITARE 1^DIVISIONE Bullet Impact Test ...

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