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An Experimental Study on the Fracture Toughness of Seawater-absorbed Thick Carbon/epoxy Composite in the Hydrostatic Pressure Environment  

Ha Sung-Rok (Graduate School of Mechanical Engineering, Kyunghee University)
Rhee Kyong-Yop (Center far media transport system, School of mechanical and industrial system engineering, Kyunghee University)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.18, no.1, 2006 , pp. 15-20 More about this Journal
Abstract
It is well-known that the corrosive behavior of PMC (polymer matrix composite) structure is much better than the metal structure in the marine environment. The understanding of fracture behavior of PMC in the deep-sea environment is essential to expand its use in the marine industry. For a present study, fracture tests have been performed under low different pressure levels such as 0.1 MPa, 100 MPa, 200 MPa, and 270 MPa using the seawater-absorbed carbon/epoxy composite samples. Fracture toughness was determined from the work factor approach as a function of hydrostatic pressure. It was found that fracture behavior was a linear elastic far all pressure levels. The fracture toughness increased with increasing pressure.
Keywords
cabon/epoxy composite; delamination; fracture toughness; hydrostatic pressure;
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