Alternative Material for High-Speed Projectile Casing
Abstract
A high-speed projectile impact is a highly complex dynamic problem that can be simplified with the use of finite element analysis solvers. Abaqus/Explicit was used to evaluate the impact of various projectiles using a plane strain setup. Using a baseline stainless steel projectile, the proposed sandwich construction design was analyzed for competition with the baseline. The overall goal was to explore the use of a new casing design and if it could perform similarly to the baseline projectile. The sandwich construction used stainless steel, tungsten, and silicon-carbide reinforced aluminum as outer and inner shell materials. The core material was created using additive manufacturing of inconel 718. The inconel 718 core used a triply periodic minimal surface structure manufactured to provide the projectile casing with high stiffness and strength while reducing the volume of material used to manufacture it. A monolithic concrete target using a brittle cracking model for a projectile hitting a concrete wall in order to simulate a projectile impacting a bunker, road, or other concrete structure.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 26, 2020
- Accession Number
- AD1102876
Entities
People
- Andrew W. Beard
Organizations
- Air Force Institute of Technology