When
Wednesday, October 30, 2024 - 2:00 p.m.
Suyeong Jin
Postdoctoral Researcher
California Institute of Technology
"Multi-physics Nonlinear Responses in Advanced Materials"
Harvill 102
Abstract: This presentation explores the multi-physics nonlinear responses in advanced materials, focusing on shape memory polymers (SMPs), bio-inspired composites, and the integration of numerical methods. The first section introduces a three-phase model for SMPs, aimed at accurately capturing the material behaviors in the rubbery, glassy, and crystallized phases. The second section discusses the coupling of two numerical methods: the finite element method (FEM) and peridynamics—a non-local method specialized for simulating crack propagation. This coupling seeks to reduce boundary effects and improve the accuracy of fracture simulations. The final section delves into bio-inspired composites with nacre-like geometries, which exhibit superior mechanical properties through the combination of strength and toughness achieved by hierarchical design.
Bio: Suyeong Jin is currently a postdoctoral researcher at the California Institute of Technology (Caltech), where she focuses on the multi-physics nonlinear responses in advanced materials, including shape memory polymers and irregular metamaterials. She holds a PhD and MS degree in civil and environmental engineering from the Korea Advanced Institute of Science and Technology (KAIST), as well as a BS degree in mechanical engineering from the same institution. Her research emphasizes fracture mechanics and large deformation behavior in advanced materials. Dr. Jin has extensive experience in developing numerical simulations and coupling methods, such as the finite element method and peridynamics, which are critical for advancing fracture simulations in bio-inspired composites.