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Fatigue response of APC-2 composite laminates at elevated temperatures

✍ Scribed by Ming-Hwa R. Jen; Yu-Chung Tseng; Huang-Kuang Kung; J.C. Huang

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
240 KB
Volume
39
Category
Article
ISSN
1359-8368

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✦ Synopsis

The response of thermoplastic AS-4/PEEK composite laminates of two lay-ups, such as cross-ply and quasi-isotropy, subjected to tension-tension (T-T) fatigue loading at elevated temperatures was investigated. It is found that the ultimate strength of cross-ply laminate is higher than that of quasi-isotropic laminate at various temperatures, so does the fatigue strength. However, the slope of normalized stress vs. cycles curves in the quasi-isotropic laminates is higher than that of the cross-ply laminates at elevated temperatures. Finally, the simple semi-empirical predictive models in statistical analysis and multiple regressions are proposed and provided for design and application purposes.

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