Carbon fibers aging time effect

It was possible to assess the effects of aging of two glass-fiber and one carbon fiber-reinforced composites for Atg = 32 weeks by recording their weight gain data at tg = fo and fg = fo -l- Afg (Gao and Weitsman 1998). The value of to, i.e., the time lapse since material production, was estimated to be 2 weeks. Results are shown in Figs. 9.3-9.5. 

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