Controlled Dynamic Fragmentation of Ceramics
Abstract
Fragmentation is a key damage mechanism determining ballistic impact performance of ceramic armors as well as reliability of gun barrels. This program, which was sponsored by the Army Research Office, focuses on the relation between defect populations and fragment-size distributions via robust physics-based numerical simulations. The originality of the present simulations lies in the capability of dealing with fragmentation of large and heterogeneous structures. The understanding of how the microstructure acts on the global macroscopic response is our main concern. Defects are strategically placed during the design of a material or a structure in order to optimize the geometrical (shape and size) or velocity characteristics of fragments.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 14, 2009
- Accession Number
- ADA519006
Entities
People
- J. F. Molinari
Organizations
- Johns Hopkins University