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An experimental study of residual fiber strains in Ti-15-3 continuous fiber composites
Date
1995-01-01
Author
Pickard, S.M.
Miracle, D.B.
Majumdar, B.S.
Kendig, K.L.
Rothenflue, L.
Çöker, Demirkan
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A simplified experimental technique to determine the axial fiber residual strain in continuously-reinforced metal matrix composites is described. The residual fiber strains in two Ti-15V-3Cr-3Al-3Sn/SiC metal matrix composites have been measured with this technique. Residual fiber strains on the order of 0.2% are measured in the as-processed condition, and the residual stresses approach zero after testing the composite in tension to failure at room temperature. A conceptual description of the effect of tensile testing on the residual stresses is provided. The experimental results are consistent with predictions based on a concentric cylinder iso-strain analysis of thermal strains. Measurement errors result in a residual fiber strain error that is typically less than ±0.05%. Periodic fiber bending induced by cross-weave fibers is also analyzed, and may contribute significantly to measurement errors.
Subject Keywords
General Engineering
URI
https://hdl.handle.net/11511/34658
Journal
Acta Metallurgica Et Materialia
DOI
https://doi.org/10.1016/0956-7151(94)00436-l
Collections
Department of Aerospace Engineering, Article
Citation Formats
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BibTeX
S. M. Pickard, D. B. Miracle, B. S. Majumdar, K. L. Kendig, L. Rothenflue, and D. Çöker, “An experimental study of residual fiber strains in Ti-15-3 continuous fiber composites,”
Acta Metallurgica Et Materialia
, vol. 43, no. 8, pp. 3105–3112, 1995, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/34658.