Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6706536 | Composite Structures | 2015 | 12 Pages |
Abstract
Finite element simulation is developed to identify possible damage scenarios for bundles and elementary fibers. Microcracks are allowed to initiate, grow and coalesce based on non-prescribed crack propagation (i.e., not imposed or with direction update) and stress criteria. High speed camera recording indicate a wide variability in crack propagation speed in the range 2-149Â m/s. Both longitudinal and transverse cracking are observed depending on the notch geometry. Our results demonstrate that the damage kinetics is a combination of growth and coalescence of microcracks. These damage mechanisms compete depending on the notch geometry and fiber element dimensions.
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Physical Sciences and Engineering
Engineering
Civil and Structural Engineering
Authors
Johnny Beaugrand, Sofiane Guessasma,