| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing Modeling, Simulation, and Machine Learning: Microstructure, Mechanics, and Process
|
| Presentation Title |
The Effect of Disorder and Constitutive Material on the Mechanical Properties of Bioinspired Honeycombs |
| Author(s) |
Sahar Choukir, Chandra Veer Singh |
| On-Site Speaker (Planned) |
Chandra Veer Singh |
| Abstract Scope |
Honeycombs are usually constructed from a tessellated array of identical unit cells, most structures in nature tend towards stochastic or disordered tessellation. This study investigates the impact of disorder on the mechanical properties of honeycombs made from three constituent materials: very brittle, quasi-brittle, and very ductile. The honeycombs are created using Voronoi tessellations with different levels of disorder. The results show that pseudo-order realizations, which have some degree of disorder, demonstrate the best strength-toughness trade-off. As the constituent material becomes more ductile, the improvement in fracture toughness compared to regular honeycombs can be as high as 50%, at the expense of a 20% decrease in strength. Additionally, the study explores the use of a local parameter for disorder to explain the large statistical variance seen in the mechanical properties of disordered honeycomb structures. |