System Design of Hierarchically Structured Materials
Abstract
Research extended the SRG systems design approach to more complex materials by establishing methodology and fundamental principles for rational design of higher levels of structural hierarchy, while incorporating increased dynamic character in the form of adaptive system concepts via synergistic integration of materials science and applied mechanics. Research addressed both the methodology of rational design at new levels of materials complexity, and the fundamental principles of specific materials behaviors necessary to support quantitative design. This included principles of microstructural evolution during coherent carbide precipitation for efficient strengthening without embrittlement, control of metastable austenite precipitation for optimal-stability transformation toughening, behavior of pseudoelastic crack-bridge toughening, and shape-memory-based healing of internal composite damage. Exploratory research also addressed conceptual design of multifunctional metal/ceramic hybrid armor systems, and transformation-plasticity based matrix alloys for shearable tungsten heavy alloy composites.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 27, 2000
- Accession Number
- ADA385760
Entities
People
- Gregory B. Olson
Organizations
- Northwestern University