aeronautica militare 1^divisione bullet impact test
TRANSCRIPT
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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
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Design and Performance Features
Energetic Material Composition
IR Decoy Flare Tested
In Service or Prototype Flares
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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
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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
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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
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Preliminary Result
NC and NG based composition
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Preliminary Result
NC and NG based composition
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Preliminary Result
NC and NG based composition
F1
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Preliminary Result
NC and NG based composition
F1
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Preliminary Result
NC and NG based composition
F1
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Preliminary Result
NC and NG based composition
F3
F2
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Preliminary Result
NC and NG based composition
F3
F2
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Preliminary Result
NC and NG based composition
F3
F2
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Preliminary Result
NC and NG based composition
F3
F2
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Preliminary Result
NC and NG based composition
F3
F2
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MTV composition
F4
Max T. 1508 °C
Preliminary Result
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MTV composition
F4
Max T. 1508 °C
Preliminary Result
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MTV composition
F4
Max T. 1508 °C
Preliminary Result
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MTV composition
F5
F6
Preliminary Result
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MTV composition
F5
F6
Preliminary Result
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MTV composition
F5
F6
Preliminary Result
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MTV composition
F5
F6
Preliminary Result
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MTV composition
F5
F6
Preliminary Result
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MTV composition
F5
F6
Preliminary Result
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Ammonium Perchlorate (NH4ClO4) based composition
F7
Max T. 925°C
Preliminary Result
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Ammonium Perchlorate (NH4ClO4) based composition
F7
Max T. 925°C
Preliminary Result
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Ammonium Perchlorate (NH4ClO4) based composition
F7
Max T. 925°C
Preliminary Result
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Ammonium Perchlorate (NH4ClO4) based composition
F8
Preliminary ResultPreliminary Result
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Ammonium Perchlorate (NH4ClO4) based composition
F8
Preliminary ResultPreliminary Result
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Ammonium Perchlorate (NH4ClO4) based composition
F8
Preliminary ResultPreliminary Result
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Ammonium Perchlorate (NH4ClO4) based composition
F8
Preliminary ResultPreliminary Result
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Ammonium Perchlorate (NH4ClO4) based composition
F8
Preliminary ResultPreliminary Result
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Ammonium Perchlorate (NH4ClO4) based composition
F8
Preliminary ResultPreliminary Result
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Ammonium Perchlorate (NH4ClO4) based composition
F9
Preliminary Result
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Ammonium Perchlorate (NH4ClO4) based composition
F9
Preliminary Result
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Ammonium Perchlorate (NH4ClO4) based composition
F9
Preliminary Result
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Ammonium Perchlorate (NH4ClO4) based composition
F9
Preliminary Result
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Ammonium Perchlorate (NH4ClO4) based composition
F9
Preliminary Result
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Ammonium Perchlorate (NH4ClO4) based composition
F9
Preliminary Result
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Reaction Type (Deflagration, Explosion, DDT
etc)
Confinement Effect
Symphatetic Reaction Occurring
Major Evidences
Preliminary ResultPreliminary Result
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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
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24 novembre 2016 Magg. Silvana GROSSI