Modeling of Cure-Induced Residual Stresses in 3D Woven Composites of Different Reinforcement Architectures

Abstract:

This paper presents finite element modeling effort to predict possible microcracking of the matrix in 3D woven composites during curing. Three different reinforcement architectures are considered: a ply-to-ply weave, a one-by-one and a two-by-two orthogonal through-thickness reinforcement. To realistically reproduce the as-woven geometry of the fabric, the data from the Digital Fabric Mechanics Analyzer software is used as input for finite element modeling. The curing processed is modeled in a simplified way as a uniform drop in temperature from the resin curing to room temperature. The simulations show that the amount of residual stress is strongly influenced by the presence of through-thickness reinforcement.

• Periodical: Key Engineering Materials (Volumes 577-578)
• Pages: 253-256
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.577-578.253
• Online since: September 2013
• Authors: Igor Tsukrov, Borys Drach, Harun Bayraktar, Jon Goering
• Keywords: 3D Woven Composite, Curing, Finite Element Analysis (FEA), Matrix Microcracking

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