Author(s)

Seyed Soheil Daryadel^*, Cameron Ray, Tejas Pandya, P. Raju Mantena

Composite Structures and Nano-Engineering Research, Department of Mechanical Engineering, University of Mississippi, Oxford, USA.

In this study, the dynamic response and energy absorption characteristics of different combinations of fiber-reinforced pultruded hybrid composites made of unidirectional glass and graphite fiber/epoxy, have been investigated. High strain-rate compression experiments were conducted on cylindrical specimens at an average strain rate of 700 /s using a modified Split Hopkinson Pressure Bar (SHPB). Failure was monitored with a high-speed video camera, and effects of hybridization on the dynamic behavior of pultruded composites were evaluated. It was found that for a given fiber volume fraction, placing glass fibers in the inner core results in a higher ultimate compressive strength, specific energy absorption, and in general a better dynamic performance with lower density.

Pultruded Composites, Hybrids, Dynamic Compressive Response, SHPB

Daryadel, S. , Ray, C. , Pandya, T. and Mantena, P. (2015) Energy Absorption of Pultruded Hybrid GlassGraphite Epoxy Composites under High Strain-Rate SHPB Compression Loading. Materials Sciences and Applications, 6, 511-518. doi: 10.4236/msa.2015.66054.