Experimental Study on Crashworthiness of Cfrp Curved Structure
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In the recent years, interest has been shown in the use of reinforced plastic composite materials for crashworthy structures because it has been found that they can be designed to provide collision energy absorption aptitudes which are superior to those of metals when compared on a weight-for-weight basis. Composite materials are characterized by reasonable physical, chemical, thermal, and mechanical properties and are widely used in aerospace vehicles, automobile, naval field, etc., for which weight reduction is the main interest. However, since the through-thickness strength of these materials is usually lower than their in-plane strength, they commonly suffer from delamination failure. The latter is commonly observed in curved structures due to the critical through-thickness stresses existing there. The purpose of the presented research is to find the best configuration and the most appropriate technology for 3D curved composite structure with the aim of evaluating the crash resistance.