SummaryProperties of injection-molded high-density polyethylene reinforced with carbon fibers were investgiated. With 20% by weight carbon fibers tensile strength of polyethylene was almost doubled. Further increase of volume fraction of fibers did not produce as dramatic results. With 40% by weight carbon fibers, elastic modulus increased one order of magnitude: from 0.225 X 106 psi to 2.48 x 106 psi. This value is close to the value of the elastic modulus of bone, hence the material may substitute for bone …
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