pps proceeding - Abstract Preview
pps proceeding
Symposium: S05 - Fibers, Films and Foams
Oral Presentation
 
 

SHOCK DAMPING PROPERTIES OF OUT-OF-PLANE REINFORCED COMPOSITES WITH FUNTIONALLY GRADED SYNTACTIC FOAMS

Anwer Ahmed A. W. (1), Naguib Hani (1)*

(1) University of Toronto - Ontario - Canada

In addition to withstanding structural stresses during an impact event, there is an increasing demand to reduce force transferred to the receiver/structure during an impact event. Reduced load transfer is of special importance in personal protection, automobiles, and in aerospace industries, where high load transfer could cause personal and structural damage. Although most material structures cans absorb load without failing, these structures are not capable of reducing force transferred to adjacent structures and bodies. The high stiffness of most impact resistant material structures results in an isotropic high rate of shock transfer, and the coupled effect of low damping properties of these material structures, results in a high load transfer. In this study, Polyurethane resin was used as a matrix material and Ultrahigh molecular weight polyethylene braids were used for out-of-plane reinforcements of structures. Effects of fibrous reinforcement and functionally graded polyurethanes on transferred loads will be investigated with a customized ASTM D5420 drop weight set up. Correlation between processing parameters, material gradients, and orientations to the transferred loads will also be presented.