Modeling Transparent Armor Behaviors Subject to Projectile Impact
Abstract
Design and manufacturing of transparent armor have been historically carried out using experimental approaches. In this study, we use advanced computational modeling tools to perform virtual design evaluations of transparent armor systems under different projectile impact conditions. AHPCRC developed modeling software EPIC'06 is used in predicting the penetration resistance of transparent armor systems. LaGrangian-based finite element analyses combined with particle dynamics are used to simulate the damage initiation and propagation process for the armor system under impact conditions. It is found that a 1-parameter single state model can be used to predict the impact penetration depth with relatively good accuracy, suggesting that the finely comminuted glass particles follow the behavior similar to a viscous fluid. Even though the intact strength of borosilicate and soda lime glass are different, the same fractured strength can be used for both glasses to capture the penetration depth.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 27, 2008
- Accession Number
- ADA479021
Entities
People
- Douglas W. Templeton
- Kevin C. Lai
- Tara Gorsich
- Xin Sun