Analysis of tow architecture variability in biaxially braided composite tubes
- Univ. of Virginia, Charlottesville, VA (United States). Dept. of Mechanical and Aerospace Engineering; Univ. of Virginia, Charlottesville, VA (United States)
- Univ. of Virginia, Charlottesville, VA (United States). Dept. of Mechanical and Aerospace Engineering
- Air Force Research Lab. (AFRL), Wright-Patterson AFB, OH (United States). Materials and Manufacturing Directorate
Spatial deviations in composite braid unit cell dimensions limit mechanical performance and are challenging to model. Full-field measurements of the irregular tow placement in biaxially braided composite tubes were obtained by digital image correlation. Analysis of the reconstructed tow paths showed long-range defects along the hoop direction with short-range defects dominating the biased tow direction. A route toward numerical simulation of the composite response is established by developing a 3D model of the composite using the measured tow trajectories. Finally, a comparison to previously-published triaxial braid results indicates axial tows work to constrain unit cells dimensions along the hoop direction.
- Research Organization:
- Univ. of Virginia, Charlottesville, VA (United States)
- Sponsoring Organization:
- USDOE Office of Nuclear Energy (NE)
- Grant/Contract Number:
- NE0008706
- OSTI ID:
- 1848159
- Alternate ID(s):
- OSTI ID: 1703924
- Journal Information:
- Composites Part B: Engineering, Journal Name: Composites Part B: Engineering Journal Issue: C Vol. 190; ISSN 1359-8368
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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