Determination of Effective Elastic Properties of Realistic 3D Textile Mesoscale Models Using Periodic Cluster Method

Hoos, Kevin H.; Ballard, M. Keith; Adluru, Hari K.; Iarve, Endel V.; Zhou, Eric; Mollenhauer, David

doi:10.2514/6.2022-2278

Cited by 4 publications

(1 citation statement)

References 3 publications

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“…Some models have been developed to investigate the effects of damage at the various length scales present in 3D woven composites [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 ]. However, when looking at the broader 3D woven-composite modeling literature, the trend is to use highly-refined finite element models of the woven architecture at a single scale [ 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ], and multiscale models are generally not employed due to prohibitive computational costs. As a result of the high computational demand for high-fidelity finite element models, particularly in the context of progressive failure analysis, it is currently challenging to perform sensitivity or optimization analyses for 3D woven composites based on this approach.…”

Section: Introductionmentioning

confidence: 99%

Multiscale Progressive Failure Analysis of 3D Woven Composites

et al. 2022

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Application of three-dimensional (3D) woven composites is growing as an alternative to the use of ply-based composite materials. However, the design, analysis, modeling, and optimization of these materials is more challenging due to their complex and inherently multiscale geometries. Herein, a multiscale modeling procedure, based on efficient, semi-analytical micromechanical theories rather than the traditional finite element approach, is presented and applied to a 3D woven carbon–epoxy composite. A crack-band progressive damage model was employed for the matrix constituent to capture the globally observed nonlinear response. Realistic microstructural dimensions and tow-fiber volume fractions were determined from detailed X-ray computed tomography (CT) and scanning electron microscopy data. Pre-existing binder-tow disbonds and weft-tow waviness, observed in X-ray CT scans of the composite, were also included in the model. The results were compared with experimental data for the in-plane tensile and shear behavior of the composite. The tensile predictions exhibited good correlations with the test data. While the model was able to capture the less brittle nature of the in-plane shear response, quantitative measures were underpredicted to some degree.

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