| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
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| Symposium
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Additive Manufacturing: Length-Scale Phenomena in Mechanical Response
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| Presentation Title |
Design, Additive Manufacturing and Testing of Bio-inspired, Mechanically-Graded Interlocking Suture Composites |
| Author(s) |
Tsai Yu-Tung, Ghimire Ashish, Chen Po-Yu |
| On-Site Speaker (Planned) |
Tsai Yu-Tung |
| Abstract Scope |
Suture structures are widely adapted in nature, e.g. turtle/armadillo osteoderms, beetle elytra tongue/groove joints, and sea urchin skeletons, to provide proper strength, toughness and flexibility. In this study, we utilized J55 polyjet additive manufacturing system to fabricate a series of bio-inspired interlocking suture structures with stiff/soft polymer-based materials to obtain graded mechanical properties. We systematically investigated the influence of geometry, dimension, hierarchical level, material selection, intrinsic mechanical properties of suture structures on the mechanical performance. Tensile, bending, and cyclic tests were conducted and fracture surface was observed by laser confocal microscopy and SEM. The deformation progress of interlocking suture composites was analyzed by DIC. Finite element analysis and particle-based simulation were performed to elucidate the failure behaviors and toughening mechanisms. Optimized design strategies for interlocking sutures based on the results were proposed, which can be applied in joints and engineering fields. Research Funding: National Science and Technology Council-Taiwan (NSTC 112-2221-E-007-028). |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Composites, Mechanical Properties |