Defense simulation projects

Defense simulation projects

1. Purpose:

In the current period with the emergence and growth of new military powers such as Russia, China, and India, it creates a situation of competing for geopolitical advantages around the world.

In the world, between neighboring countries there is always a potential risk of armed conflict in disputes and territorial defense.

Countries around the world are constantly modernizing their militaries, improving their capabilities, combat effectiveness and ability to protect soldiers on the battlefield.

For the purpose of researching and improving weapons in the army, increasing the damage efficiency, accuracy, and reliability of weapons.

Develop defense technologies and protect soldiers on the battlefield.

We are looking forward to cooperating in research and development of defense products with defense agencies of countries around the world.

2. Today's battlefield:

During a conflict, friendly forces (indicated in black) act as a united force against the enemy (indicated in red). This force operates in multiple zones (gray, yellow, light gray, dark gray, and dark blue) – space, cyber, air, land, sea – individually and simultaneously between aspects. Activities designed to encourage competitors to learn the advantages of returning to competition, rather than continuing the conflict, or avoiding conflict altogether (deterrence).

Summary of the factors on the battlefield today:

Improvement options:

3. Defense problems simulation:

Defense applications features:

• Large deformation events occur in a short duration
• High energy events such as blast loading
• Supersonic / Compressible CFD
• Explosive and Shock wave propagation
• Materials subject to extreme loading and failure

Material models for high strain rate and extreme loading:

• Enviroment materials (vacuum, air, soil, sand, water…) (ideal gas, real gas…)
• Explosives (Comp B, C-4, H-6, LX, Octol, PBX, PENT, TNT, DRX, Tetryl…) (Jones-Wilkins-Lee)
• Metals and Alloys (Steel, AL, Copper, Lead, Titanium, Tungsten, Uranium…) (Johnson-Cook)
• Concrete, stone… (RHT, Winfrith)
• Ceramics, glass (Johnson-Holmquist)
• Rubber, plastic, wood ()
• Fibre reinforced polymers (Continuum Damage Model)
• Human body’s tissues materials (Flesh, Muscle, Bone, Lung, Heart, Spleen, Liver, Kidney, Abdomen, blood, brain…)

4. Defense Problems Applications:

4.1. Blast loading on building & infracstructure:

4.2. Mine/IED blast on vehicles and transpoted personel:

4.3. Penetration mechanics & Warhead performance:

Projectile vs bulletproof vest (link…)

Projectile vs. armor (RHA, Composites, Ceramic, non-Newton liquid armor…) (link…)

APFSDS vs. tank’s armor (link…)

EFP/Shaped Charges warhead vs. tank’s armor (link…)

Projectile penetration (link…)

4.4. Fragmentation of Warheads:

Deformation, fragmentation and acceleration of a controlled fragmentation warhead shell.

When using simulation to obtain the characteristics of the parameters of the fragmentation process occurring in the explosion, to model the detonation and fragmentation of the shell, when it is necessary to collect data on parameters of the fragments, density and velocity of the fragments at the equator and the meridian angles of the warhead.

4.5. Munitions & guns/barrels:

Bullet behavior in the barrel (Stress, markings on the bullet, velocity, acceleration, rotational velocity, etc.) (link...)

Barrel stress response under combined thermomechanical load conditions (contact and frictional pressure, thermal load and propellant pressure. (link...)

Effect of friction and temperature on mechanical properties, variation, etc.) The plastic form of the barrel was considered. (link...)

Evaluation of the interaction process between the barrel and the bullet that damages the spiral groove in the borehole. (link...)

4.6. Submarine and surface vessels underwater shock analysis:

4.7. Anti-tank warhead vs. tanks armors interaction:

Interaction between anti-tank warheads and passive armor (steel armor, composite armor, ceramic armor, explosive reactive armor, slat armor...): (link...)

Interaction between the warhead and the interceptor system (active defense):

4.8. Equipments for soldier on battlefield:

Studying the effect on the human body (link…)

Testing anti-penetration materials (Kevlar fabric, composite, ceramic, etc.) (link…)

R&D anti-penetration designs (Bioinspired…), light texture, easy movement (link…)

Simulation, testing and evaluation of impact results (link…)

Manufacturing production…

Conclusion:

Penetration and explosion events form an environment layer that simulates high-energy events such as penetration and perforation.

In addition to high energies, these events are often associated with large deformations, failures and failures both at the material and structural levels.

With experience in many fields of simulation of commercial products and defense applications. This allows us to provide insight into many aspects of modeling and simulation in the security and defense sector.

We sell, teach and support LS-DYNA and LS-OPT software for simulating defense problems as described above.

In addition, we provide engineering services for numerical analysis and simulation software integration in your CAE environment.

Thank you very much to everyone who has taken the time to follow these content. Looking forward to everyone's cooperation.

Tel: (+84) 363 999 110

Email: viettechview.kh@gmail.com

Facebook group: Engineering Simulation Group