EMERGENT BEHAVIOR OF INTERLOCKING MECHANICAL METAMATERIALS
Abstract
geometric nonlinearity within mechanically constrained interlocking systems, focusing on structures to be fabricated and operated at the microscale and nanoscale. Initial analysis indicates that surface bonding forces comparable to chemical adhesives can be obtained with interlocking mechanical metamaterials, with much greater range of service temperatures. The technical approach expands on this initial analysis with analytical and numerical modeling, and to verify models with macroscale and microscale experimentation. This work will pursue a multiscale approach that incorporates surface bonding forces in micromechanical modeling, and will seek to specify model systems for scalable manufacturing in which project discoveries can be implemented. Anticipated outcomes will be a set of analytical and numerical simulation tools, and a set of fabrication processes, that can be used to design and manufacture adhesive metamaterial surfaces. These will be communicated to the engineering public via research publications on the topic of mechanics of engineered surface structure arrays and geometric nonlinearity. The potential impact of this research will be to advance understanding of geometric nonlinearity and adhesive metamaterials in mechanics. This understanding will enable versatility, automation, thermal tolerance, and joining of dissimilar materials in aircraft and spacecraft assembly processes. The fundamental understanding developed in this work has the potential to revolutionize aircraft, spacecraft, and sensor fabrication processes by enabling adaptability and increased speed and automation of assembly processes. Furthermore, interlocking adhesive metamaterial surfaces may provide a pathway to better and more adaptable designs for high service temperatures and high temperature cycling, which are needed for adaptable and robust designs for hypersonic systems.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 12, 2021
- Source ID
- FA95502010256
Entities
People
- Joseph S Brown
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of Hawaiʻi System