Akademik Veri Yönetim Sistemi
Journal of Vinyl and Additive Technology, 2026 (SCI-Expanded, Scopus)
Acrylonitrile–butadiene–styrene (ABS) cantilever beams were reinforced with carbon black (CB) at 0–2 wt% and fabricated by mechanical extrusion (MEX)-based additive manufacturing to improve vibration damping without compromising strength. Free-decay responses were processed with three complementary estimators—logarithmic decrement (time domain), half-power bandwidth (frequency domain), and an envelope-fit that provides an analytic standard error—and the per-run damping ratios were fused by precision (inverse-variance) weighting to obtain a single (Formula presented.) with 68% confidence intervals. Composition-level results show a clear optimum at 0.3 wt% CB, where the fused damping ratio increased from 5.81 × 10−3 (pure ABS) to 7.75 × 10−3 (≈+33%), while the ultimate tensile strength rose from 9.83 to 18.12 MPa (≈+84%). At 1 wt%, the damping remained elevated but strength decreased; at 2 wt% both metrics declined, consistent with agglomeration observed in scanning electron microscope images. A strength–damping Pareto view highlights 0.3 wt% as a practical composition window for balanced performance in MEX ABS/CB parts. The workflow—multi-estimator analysis with uncertainty-aware fusion—provides reproducible damping estimates from short free-decay records and can be applied to other printed polymers and fillers.