| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Quasistatic Energy Absorption in Aperiodic Cellular Materials |
| Author(s) |
Irving E Ramirez-Chavez, Mandar Shinde, Dhruv Bhate |
| On-Site Speaker (Planned) |
Dhruv Bhate |
| Abstract Scope |
Cellular materials have been used for decades for their energy absorbing properties. These have typically been either honeycombs or open cell foams, the former representing a periodic distribution of cells, the latter a stochastic one. Recently however, several studies have demonstrated the potential for additively manufactured cellular materials as energy absorbers, but the majority of them have been focused on periodic cellular designs. In this work, we present a classification of aperiodic cellular materials, followed by a discussion of studies that examined the influence of aperiodicity on the energy absorption properties, for three types of modifiers: hybridization, perturbation, and gradation. These experimental and numerical studies were conducted on honeycombs and surface-based cellular structures under quasistatic compression. Our findings suggest that aperiodicity does occasionally benefit energy absorption behavior, but that these benefits depend on how the underlying cellular topology and the aperiodicity influence the failure patterns that develop during compression. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |