Title: Numerical Modeling of a Double Gyroid Composite Component’s Damping Characteristics

Authors: Jordan Cioni, Jagadeep Thota

DOI: 10.33599/nasampe/s.24.0230

Abstract: The dynamic energy absorption characteristics of 17-4 PH stainless steel gyroid reinforced with a polyurethane matrix were investigated in this work. Numerical models of the gyroid shaped composite were developed and to predict the energy damping characteristic. The gyroid composite structure in the numerical models were subjected to dynamic loading while varying the double gyroid’s isovalue and the stiffness of the polyurethane material. Composites showing high concentrations of distortion energy within the softer polyurethane material were assumed to exhibit the greatest energy dissipation. To validate the numerical predictions, a lab-scale experiment was conducted. The lab-scale experiment comprises of a low-velocity impact test on a similar type gyroid composite structure. By performing regression analysis of experimental deformation results to models of underdamped harmonic motion, damping coefficients were obtained to quantify the gyroid composite structure’s actual energy dissipation.

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Conference: SAMPE 2024

Publication Date: 2024/05/20

SKU: TP24-0000000230

Pages: 13

Price: $26.00