| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Biological Materials Science
|
| Presentation Title |
Assessing the Role of Loading Direction on the Compressive Response and Deformation Mechanism in Bioinspired Multilayered Composites |
| Author(s) |
Sashanka Akurati, Justine Marin, Bharath Gundrati, Dipankar Ghosh |
| On-Site Speaker (Planned) |
Sashanka Akurati |
| Abstract Scope |
This work is motivated by the structural gradient observed in natural materials to understand the influence of the loading direction on the compressive response and deformation mechanism of bioinspired multilayered ceramic-polymer composites. Although this investigation is not on the development of multilayered composites with a structural gradient, the current results shed insights into the mechanical behavior and design of such materials. This work utilized ice-templated alumina-epoxy composites as a model material system. For compression along growth direction of ice crystals, materials exhibited either high strength with brittle-like failure or low strength with ductile-like failure. Away from growth direction, strength decreased significantly, and failure was ductile-type. SEM and X-ray tomography were employed to investigate the influence of layer orientation on the deformation mechanisms. Using the Tsai-Hill failure criterion, the role of competitive failure mechanisms on compressive response of composites was evaluated and upper and lower bounds of strength were estimated. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Composites, Mechanical Properties, Characterization |