A design method of origami structure cushion using corrugated fibreboard

The demand for global plastic reducing trend is increasing worldwide, and we have developed a simple design method of corrugated fibreboard cushion applied origami structure that can be used as an alternative to EPS (expanded polystyrene) .The score length and pitch at the bending portion that constitutes the cushion structure are important parameters that determine the size and dynamic cushioning performance. Translational stiffnesses of the cushion structure can be calculated by acquiring the translational stiffness of each score portion that make up cushion structure, and the generated acceleration when the impact is applied can be estimated with an error of about 17%. Comparing the cushioning curves of origami structure cushion, EPS, and laminated corrugated fibreboard of the same size, Cushioning performance of the origami structure cushion is sufficiently high compared to EPS and laminated corrugated fibreboard. However, the size of origami structure cushion tends to be larger than EPS. Therefore, it is necessary to reduce the cushion size by further structural studies.