Abstract
The strain amplitude dependence of Dynamic Young’s modulus and internal friction have been studied on variously fatigued glass cloth reinforced epoxies and was compared with laser transmittance. The temperature dependence was also measured in temperature range from 100 to 380 K.
The strain amplitude dependence in Young’s modulus and internal friction come to notable as the fatigue progresses. The close correlation was revealed between laser transmittance and strain amplitude dependence. The degree of interface fracture could be estimated by strain amplitude dependence. The different temperature dependence of internal friction were found in different FRP of which Young’s modulus are just same at room temperature, because the temperature dependence of internal friction mainly reflects the behavior of matrix in FRP.
Work in part supported by Grant in Aid for Scientific Research No. 59050044 and No. 59750053 Ministry of Education in Japan, and Grant from the Research Project in ISIR.
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References
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© 1986 Springer Science+Business Media New York
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Nishijima, S., Matsushita, K., Okada, T., Okamoto, T., Hagihara, T. (1986). Dynamic Young’s Modulus and Internal Friction in Composite Materials. In: Hartwig, G., Evans, D. (eds) Nonmetallic Materials and Composites at Low Temperatures. Cryogenic Materials Series. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-2010-2_16
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DOI: https://doi.org/10.1007/978-1-4899-2010-2_16
Publisher Name: Springer, Boston, MA
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