The Importance of Structural Analysis in Defense and Aerospace

The Importance of Structural Analysis in Defense and Aerospace


Fe-Tech Advanced Engineering | Reliable Designs Through Realistic Simulations

The defense and aerospace industries represent the most sophisticated areas of technology and engineering.
Every system developed in these fields carries vital importance — from the hull of an armored vehicle to the wing of a fighter jet, each component must perform with absolute reliability under extreme conditions.

Physical prototyping and testing are costly, risky, and time-consuming. Therefore, numerical simulations and structural analyses have become indispensable parts of modern defense engineering.
Fe-Tech Advanced Engineering provides Ansys-based advanced engineering solutions, enabling products to be tested under realistic virtual conditions at the design stage.

🚀 The Power of Engineering Analysis

Failure is not an option in defense platforms.
That’s why every design undergoes static, dynamic, thermal, and ballistic analyses before production.
These analyses help engineers understand how a system behaves not only under load but also against temperature, pressure, vibration, explosion, and environmental factors.

Fe-Tech engineers employ the Finite Element Method (FEM) to mathematically model complex systems and evaluate how each component responds to external forces.
Through this process, structural weaknesses are identified, unnecessary weight is reduced, and the balance between strength and lightness is optimized before production begins.

⚙️ Main Types of Analyses Used in Defense Systems

1️⃣ Shock and Ballistic Analyses

Armored vehicles, naval structures, and ammunition systems are evaluated for their resistance to shock, impact, and ballistic effects.
Analyses are performed according to MIL-STD-810G and STANAG 4569 standards.
The goal is to determine how the system distributes energy during impact and where deformation occurs.
As a result, armor thickness can be optimized, excess weight reduced, and protection performance enhanced.

2️⃣ Bird-Strike Analyses

In the aerospace industry, bird-strike risks pose serious safety concerns for high-speed aircraft.
Using Ansys simulations, engineers analyze the effects of such impacts on wings, radomes, engine fans, and cockpit panels.
This process increases structural integrity and allows potential damage scenarios to be anticipated before they occur.

3️⃣ Vibration and Fatigue Analyses

Defense systems operate continuously under vibration and dynamic loads, which over time cause material fatigue and crack formation.
Fe-Tech engineers perform natural frequency, mode shape, and vibration-based fatigue analyses to identify resonance points within the system.
By doing so, the structural lifespan of components is extended, and maintenance costs are minimized.

4️⃣ Collision and Blast Analyses

For land and marine vehicles, mine explosion, under-plate blast, and collision scenarios are simulated.
These analyses focus on material behavior, energy absorption, and deformation patterns.
The main objective is to ensure that explosion energy is transmitted to the crew compartment at a minimum level.
Fe-Tech uses high-deformation metal and composite material models to achieve the most realistic results.

📐 Ansys-Based Simulation Approach

Fe-Tech Advanced Engineering conducts multidisciplinary analyses using Ansys Mechanical, LS-DYNA, and CivilFEM platforms.
These software tools enable linear–nonlinear, static–dynamic, and thermal–fluid interaction analyses to be performed accurately.

Core tools used:

🔹 Ansys Mechanical: Static, modal, fatigue, and impact analyses

🔹 LS-DYNA: Explosion, ballistic, and crash scenarios

🔹 CivilFEM: Structural engineering and design verification per strength standards

🔹 Ansys Fluent / CFD: Coupled thermal and flow behavior within structural systems

This integrated approach accelerates design validation and significantly reduces the number of required prototype tests.

🌍 Application Areas

Armored ground vehicles and turret systems

Aircraft and helicopter fuselage structures

Missile transport platforms

Submarine and ship hull components

Weapon turrets and ammunition systems

In every project, design optimization, safety analysis, and performance validation are carried out holistically by Fe-Tech engineers.

🧩 Compliance and Quality Assurance

Each analysis conducted by Fe-Tech is fully documented in accordance with international standards and specific client requirements.

Key standards applied:

MIL-STD-810G: Environmental testing and durability

STANAG 4569: Ballistic protection levels

VDI 2230: Bolted joint strength calculations

EN 12663: Vehicle body strength criteria

This ensures that results are not only accurate in simulation but also correlate directly with physical test data.

🔬 Fe-Tech’s Engineering Philosophy

Fe-Tech is more than an analysis provider — it is an engineering partner that integrates design, testing, validation, and production into a unified process.

With tailored modeling strategies for each project:

Product development time is reduced,

Prototype costs are minimized,

Safety and performance levels are maximized.

By combining engineering intuition with computational verification, Fe-Tech delivers durable and reliable solutions for modern defense projects.

🧠 Reliable Designs Begin with Realistic Simulations

Success in the defense and aerospace industries is achieved through trustworthy, durable, and optimized designs.
Fe-Tech Advanced Engineering continues to support this mission through its technical expertise, advanced software capabilities, and experienced engineering team.

Simulation is Our Expertise, and the Result is Your Strength.

🔗 Learn more at: www.fetech.com.tr
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