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Meeting NUMIFORM 2019: The 13th International Conference on Numerical Methods in Industrial Forming Processes
Symposium S-14: Composites Forming
Presentation Title Numerical Evaluation of Reinforcement Morphology Contribution to Process-induced Residual Stresses in 3D Woven Composites
Author(s) Kostiantyn Vasylevskyi, Hilary Buntrock, Todd Gross, Borys Drach, Igor Tsukrov
On-Site Speaker (Planned) Kostiantyn Vasylevskyi
Abstract Scope 3D woven composites, in particular carbon/epoxy, are being increasingly adopted in aerospace, wind energy, transportation and other industries. They are often produced by resin transfer molding with epoxy cured at elevated temperature. This process sometimes results in high level of residual stresses due to the mismatch in thermal expansion coefficients between carbon and epoxy. In this paper we, utilize numerical modeling in combination with blind hole drilling experiments to determine residual stresses in 3D composites with various reinforcement architectures. In particular, we evaluate individual contributions of warp, weft and binder tows to the residual stress state. Our studies show that these contributions are determined by both arrangement and orientation of the tows. The developed numerical modeling tool can be used in design of reinforcement architectures with reduced levels of residual stresses.
Proceedings Inclusion? Undecided

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Effect of Matrix Viscoelasticity on Prediction of Residual Stresses in Orthogonal 3D Woven Composites
Friction Characterization in Hybrid Thermoforming of Aluminum and GFRP
Numerical Evaluation of Reinforcement Morphology Contribution to Process-induced Residual Stresses in 3D Woven Composites
Numerical studies of the composite materials with irregular inclusions
Study of the Flow-induced Orientation and Dispersion of Microcrystalline Cellulose Filled Polymer Composites: A Molecular Dynamics Simulation Approach

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