A Node Detection Method Based on Johnson-Cook and Thin-Film IMD Characteristic Model Armor Damage Detection Repair...

Area of Science:

• Materials Science
• Mechanical Engineering
• Armor Technology

Background:

• Armor vulnerability to battle damage necessitates advanced detection and prediction methods.
• Current methods may lack precision in identifying damage locations and severity.
• In-Mold Decoration (IMD) films offer a unique surface property for damage assessment.

Purpose of the Study:

• To propose a novel node detection method for armor battle damage using a die index.
• To develop a system for predicting armor damage and quantifying its severity.
• To validate the proposed method through simulation and experimental comparison.

Main Methods:

• Utilizing the special properties of IMD films to virtualize armor surfaces.
• Employing a unique IMD film stamping die to decrease damage possibility and provide prediction.
• Introducing the IMD die index to quantify damage data and assess severity.
• Simulating battle loss using the Johnson-Cook stress model in COMSOL.
• Repairing predicted damage using additive manufacturing.

Main Results:

• The die index effectively detects vulnerable damage positions on armor.
• The method quantifies damage severity, aiding in armor design optimization.
• COMSOL simulations with the Johnson-Cook model validated experimental findings.
• Additive manufacturing successfully repaired predicted battle damage.

Conclusions:

• The proposed IMD die index method offers an efficient approach for detecting, predicting, and quantifying battle damage in armor.
• This technique facilitates optimized armor design and effective repair strategies.
• The integration of simulation and additive manufacturing provides a comprehensive solution for armor resilience.