Strain-rate-dependent properties of short carbon fiber-reinforced acrylonitrile-butadiene-styrene using material extrusion additive manufacturing

What is it about?

The strain-rate dependence of the yield stress for unfilled ABS and short carbon-fiber reinforced ABS materials was determined for tensile test samples produced via material extrusion additive manufacturing (ME-AM). The infill orientation angle is varied to obtain test samples with longitudinal and transverse deposited strands. Anisotropy was detected not only for the yield stresses, but also for its strain-rate dependence. The short carbon-fiber filled material exhibited higher anisotropy than neat ABS material using the same ME-AM processing parameters. An Eyring-type flow rule was able to adequately represent the strain-rate dependent behavior.

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