Crashworthiness Optimization of Thin-Walled Miura Origami Design Using the Taguchi Method

In this study, a thin-walled Miura origami pattern was developed. Typically, this pattern features creases that serve as pre-folds, enabling predictable and stable collapse modes. To optimize the geometry of the thin-walled structure, the Taguchi L9 method was employed, considering four factors: cross-sectional width (b), number of angles (Ꝋ), number of segments (M), and thickness (t). The research methodology involved finite software, with modeling elements comprising three main components: impactor, thin-walled, and fixed support. The material utilized was carbon fiber-reinforced onyx. The loading was modeled using the frontal crash test method. In this simulation, the impactor was applied at a velocity of 7.67 m/s, resulting in a deformation length of 80 mm. The optimization result was obtained as the optimum design parameter miura origami of thin-walled with parameter Ꝋ = 8, b = 40, t = 1,8, and M = 5 with energy absorption 449,76 Joule. The thickness of the thin-walled structure (t) contributes the most significantly, accounting for 83% of the increase in energy absorption value.