About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
Relationship between Flow-controlled Fiber Orientation and Spring-in Deformation in Extrusion Deposition Additive Manufacturing |
Author(s) |
Akshay Jacob Thomas, Eduardo Barocio, Vasudha Kapre, Pasita Pibulchinda, Felix N Nguyen, R. Byron Pipes |
On-Site Speaker (Planned) |
Akshay Jacob Thomas |
Abstract Scope |
Extrusion deposition additive manufacturing (EDAM) with fiber-filled polymers has enabled the printing of structures in the scale of multiple meters owing to enhanced stiffness and lower coefficient of thermal expansion primarily in the printing direction. Developing manufacturing process simulations for EDAM requires extensive material characterization including mechanical and thermomechanical property characterization. Varying the process conditions alters the fiber orientation state of the composite thereby resulting in different mechanical and thermomechanical behavior. This increases the amount of characterization required to enable the digital twin framework. Therefore, we present a framework to infer the fiber orientation properties by conducting limited tensile tests at the composite coupon level. Using the inferred orientation state, we predict the unmeasured mechanical and thermomechanical properties and bypass the need for their experimental characterization. We present the application of this framework to predict the spring-in deformation of a geometry of interest printed using different process conditions. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |