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Individual Project - Military Truck Blast Shield

Dissertation Final Presentation
by

matthew james

on 10 May 2010

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Transcript of Individual Project - Military Truck Blast Shield

Recommendations STANAG 4569 Rifle Cartridges Improvised Explosive Devices (IEDs) Armour Technology Materials Used
in Industry Spaced Armour Sloped Armour Explosive Reactive Armour Cage Armour Composite Armour

"269 Casulties Already This Year" (Guardian, 2010) “military munitions, usually 122 mm or
greater mortar/tank/artillery.” (Globalsecurity.org, 2005) Similarities:

•An initiation system or fuse
•Explosive fill
•Detonator
•Power supply for detonator
•Container
Rolled Homogenous
Steel
Ceramics Composites Silicon Carbide
Silicon Boride
Silicon Nitride + Very Hard
+ Very Light
- Comparably Expensive S2-Glass
Kevlar
Dyneema
Carbon Fibre + Very Stiff
+ Very Light
- Very Expensive CES EDUPACK 2009

Step 1: Properties of RHS
Step 2: Calculate Forces, used Muzle Energy Equation
+ Cheap
- Heavy
- Not as efficient Lightweight Option
Steatite Strike Face
BMI/HS Carbon Fibre, Quasi Isotropic Composite

Weight: 568Kg
Cost: £35,055.10
Dissipates: 3750 MPa


Budget Option
Alumina Strike Face
Epoxy/S-Glass Fibre Composite

Weight: 731.5 KG
Cost: £7,445.93
Dissipates: 3780 MPa

Based on 1m x 1m x 30cm Plate Result: 3750 MPa Based on 7.62 X 51 AP (WC Core)
From 30 Metres
Travelling at 930 m/s Re-works Initial Budget Option
Silicon Carbide (HIP) Strike Face
Epoxy/S-Glass Fibre Composite

Weight: 698 KG
Cost: £10,871.20
Dissipates: 3960 MPa

Lightweight Option
Boron Carbide Strike Face
Cyanate ester/HM Carbon Fibre Composite

Weight: 579.5Kg
Cost: £60,691.75
Dissipates: 4962.5 MPa


Gains 33kg Weight
Loses 180.5 MPa performance
Costs £3,425.27 less Loses 11.5 kg Weight
Loses 1,212.5 MPa performance
Costs £25,636.65 less Bonding Selection Used selection in Catia:
•Materials to be joined:
- Hybrids: composites, foams and natural materials
- Ceramics
- Dissimilar materials
•Joint Geometry:
- Lap - This is where two surfaces are placed onto each other and are bonded between each other.
•Recommended Loading
- Compression
- Bending
- Peeling
•Function:
- Watertight/Airtight
•Acrylic adhesives
•Cyanoacrylates adhesives
•Epoxy adhesives
•Nut and bolt
•Polyester adhesives
•Polysulfide adhesives
•Rivet
Results: •Acrylic adhesives
•Cyanoacrylates adhesives
•Epoxy adhesives
•Nut and bolt
•Polyester adhesives
•Polysulfide adhesives
•Rivet
Epoxy Adhesive
Capital Cost: £73.15
Tooling Cost: £39.78
Set-up Time: 0.25 Hour
Time Before handling: 12.08 Hour
Polysulphide Adhesive
Capital Cost: £73.15
Tooling Cost: £36.47
Set-up Time: 0.25 Hour
Time Before handling: 6.5 Hour
•Acrylic adhesives
•Cyanoacrylates adhesives
•Epoxy adhesives
•Nut and bolt
•Polyester adhesives
•Polysulfide adhesives
•Rivet
Tencate LIBA (Light Improved Ballistic Armour)

Ceramic Pellets on a elastic polymer
AL - Alumina Oxide
CX - Silicon Carbide, Boron Carbide
Multi-Hit Capacity


Mastiff

Cage Armour
Spaced Armour
Composite Armour, S-Glass expoxy matrix

Discuss theores in relation to my work and case studies.
Research into: Kinetic threats to armoured vehicles, Armour technology, Materials used in industry, Neutral CAD file formats used in industry. Draw up design specification Select appropriate materials Select appropriate bonding method Design shield in Catia Military Truck Blast Shield Objectives: Research Case Studies Technology: NP Aerospace Materials: Tencate Material Selection
Armour Piercing

Casing Soft Metal
Penetrator Dense Metal
Tungsten Carbide Bullet?
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