| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Biological Materials Science
|
| Presentation Title |
Investigation of Design Principles from the Cholla Cactus using Finite Element Simulations and In situ Mechanical Testing |
| Author(s) |
Swapnil Morankar, Eugenia Nieto-Valeiras, Amey Luktuke, Yash Mistry, Dhruv Bhate, Clint A. Penick, Nikhilesh Chawla |
| On-Site Speaker (Planned) |
Swapnil Morankar |
| Abstract Scope |
The mesh-like woody skeleton of Cholla cactus (Cylindropuntia acanthocarpa) exhibits a hierarchical porous structure which can inspire the development of advanced lightweight cellular materials. In the present work, x-ray microtomography was used to understand the multiscale hierarchical structure of Cholla cactus. Three-dimensional visualization using x-ray microtomography revealed various design principles in this system. These principles were further evaluated using finite element simulations and in situ mechanical testing. The actual microstructural data generated from x-ray microtomography was directly utilized in the finite element simulations. The mechanical properties of wood cell walls were probed using nanoindentation and used as constitutive properties for the finite element models. The results of the simulations were validated by in situ mechanical testing inside the x-ray microscope. The unique insights revealed from experiments and simulations will be discussed from the perspective of engineering applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Composites, Mechanical Properties, Modeling and Simulation |