Automating structural modeling of composites enriched by X-ray micro-tomography and digital imaging data

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Authors
Iliopoulos, Athanasios P.
Michopoulos, John G.
Steuben, John C.
Birnbaum, Andrew J.
Lua, Jim Y.
Karuppiah, Anand Vijay
Seneviratne, Waruna P.
Saathoff, Caleb
Advisors
Issue Date
2018
Type
Conference paper
Keywords
Defects , Fiber reinforced materials , Fiber reinforced plastics , Strain , Structural design , Tomography
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Citation
Iliopoulos AP, Michopoulos JG, Steuben JC, et al. Automating Structural Modeling of Composites Enriched by X-Ray Micro-Tomography and Digital Imaging Data. ASME. International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Volume 1B: 38th Computers and Information in Engineering Conference ():V01BT02A023
Abstract

The manufacturing processes of Fiber Reinforced Polymers (FRPs) as composite materials are frequently prone to the creation of various types of undesired morphologies and defects. These can include layer waviness, inclusions, and voids. Structural modeling for Finite Element Analysis (FEA) of structures including such morphologies and defects has not been practically realizable until recent developments in X-ray microtomography enabled the detection of such defects in a nondestructive manner. In the present work we present our initial steps toward the FEA modeling of FRP composite structures that leverage utilization of X-ray and regular digital imaging data as well as semi-automated methods for generating appropriate FEA models. Emphasis is given in defining waviness-driven curvilinear coordinate systems, defect identification and integration of both waviness and defects to FEA analysis including a plane-strain application of a curved composite bracket under four-point bending conditions.

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ASME
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ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference;v.1B
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