| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing Modeling and Simulation: Microstructure, Mechanics, and Process
|
| Presentation Title |
Modeling and Experimental Validation of Stresses in 3D Printed, Polymeric Biliary Stents |
| Author(s) |
Victoria Cordista, Rebecca Lawson, Bailey Stanley, Sagar Patel, Joanna Thomas |
| On-Site Speaker (Planned) |
Victoria Cordista |
| Abstract Scope |
Stents are inserted in the extrahepatic bile ducts (EHBD) to alleviate cholestasis. Current plastic biliary stents do not allow multidirectional flow at a duct bifurcation. Metal stents allow multidirectional flow but not subsequent diagnostic imaging. Our efforts are focused on predicting the behavior of new, 3D printed polymeric biliary stent designs that can be deployed at a duct junction without inhibiting bile flow. To ensure our design simulations were accurate, we obtained the mechanical characteristics of the stent material through tensile testing. We performed bend testing on the stent designs to determine maximum deformation. Our experimental values were used to validate our ANSYS simulation data. ANSYS input parameters were adjusted until simulated reaction force values on the stents were within 10% of experimental data. At that point the Von Mises stresses predicted by ANSYS were assumed to accurately represent stresses experienced by our biliary stents. |