Abstract
Impact values of sandwich structural composites (CFRP/ABS/CFRP and CFRP/PMMA/CFRP) of both acrylonitrile butadiene styrene (ABS) and poly methyl methacrylate (PMMA) resins cores covered with carbon fiber reinforced polymer (CFRP) sheets at both side surfaces were obtained. The impact value of CFRP/ABS/CFRP, which approximately corresponded to that of CFRP composite, was more than two times higher than that of CFRP/PMMA/CFRP. Both the Weibull coefficient (n) exhibiting reproducibly and the lowest impact value (as) for safety design were determined as indicators of reliability. Both values of CFRP/ABS/CFRP and CFRP were higher than those of the CFRP/PMMA/CFRP. Thus, the use of ABS resin as the core enhanced the reproducibly and design safety. In addition, since the price of CFRP was higher than that of ABS resin, the sandwich structural composites of CFRP/ABS/CFRP could be used for articles of daily.
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