Ballistic analysis of high-performance armor steel by numerical simulation

Area of Science:

• Materials Science
• Mechanical Engineering
• Ballistics

Background:

• Armor steel's mechanical properties are crucial for its ballistic performance.
• Understanding this relationship is key for developing effective armor solutions.
• The Johnson-Cook constitutive relation is a common model for material behavior under impact.

Purpose of the Study:

• To establish a clear connection between the mechanical properties and ballistic performance of armor steel.
• To develop and validate a predictive model for armor steel's ballistic performance.
• To investigate the influence of Johnson-Cook parameters on ballistic outcomes.

Main Methods:

• Development and validation of a ballistic simulation model.
• Description of target plate mechanical properties using the Johnson-Cook constitutive relation.
• Analysis of the impact of Johnson-Cook parameters on ballistic performance.

Main Results:

• A strong linear relationship was identified between Johnson-Cook parameters and ballistic performance.
• A mathematical model (H = 14.82 - 0.0048A - 0.0023B + 5.95n - 81.3C) was derived.
• The derived model demonstrated over 90% accuracy in predicting ballistic performance.

Conclusions:

• The developed mathematical model accurately predicts armor steel's ballistic performance.
• This model accounts for variations in mechanical properties during production.
• The predictive capability reduces research time and costs for armor steel development.