| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Biological Materials Science
|
| Presentation Title |
Cement-polymer Composite Structures Inspired by Molluscan Prismatic Layers |
| Author(s) |
Shahbaz Mahmood Khan, Ling Li |
| On-Site Speaker (Planned) |
Shahbaz Mahmood Khan |
| Abstract Scope |
Natural materials composed of highly organized ductile and brittle phases exhibit outstanding mechanical properties. The prismatic layers of bivalve mollusk shells, for example, are known to perform well under impact and abrasive loads. The prismatic layer architecture, characterized by 2D grain evolution, is composed of normally oriented variable diameter prisms in an organic matrix. The structural complexity arising due to grain evolution makes the modeling and fabrication of such composites challenging. In this research, we use a 2D grain growth algorithm to model the prismatic structures with controlled grain growth rates and volume fractions. Next, we 3D print the matrix which is subsequently infiltrated by cement paste to produce prismatic layer-inspired cement-polymer composites. The indentation tests are performed using a spherical-tip indenter to evaluate the localized deformation behavior. Localized mechanical properties like hardness, reduced modulus, abrasion resistance, and crack growth resistance are evaluated. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Other, Additive Manufacturing, Other |