California Institute of Technology

Dennis M Kochmann

Julia Rosolovsky Greer

Daryl Wei Liang Yee

Charles S Wojnar

Jean-Briac Le Graverend

Carlos M Portela

In an aspect, provided herein are low density materials, including shell-based materials, with three-dimensional architectures formed, in part, via self-assembly processes. Shell-based materials of some embodiments exhibit a combination of ultralow density (e.g., ≤100 mg cmand optionally ≤10 100 mg cm) and non-periodic architectures characterized by low defect densities and geometries avoiding stress concentrations. Low density shell based materials of some embodiments have architectures characterized by small curvatures and lack of straight edges providing enhance mechanical response. In some embodiments, for example, the present low density materials, including shell-based materials, providing a combination target mechanical properties including high stiffness-to-density ratios, mechanical resilience and tolerance for deformation.

Self-assembly of shell-based architected materials

An apparatus, method, and material wherein the material's viscoelastic and/or fatigue life may be altered by application of a secondary tuning electromagnetic field or a selected temperature, and the material's viscoelastic and/or fatigue properties are measured by a mechanical response of the material caused by applying a primary driving electromagnetic field.

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Pasadena, CA, United States of America

Dennis M Kochmann