Effects of perforated crease line design on mechanical behaviors of origami structures

• Published in: International journal of solids and structures 2021-11, Vol.230-231, p.111158, Article 111158
• Main Author: Hwang, Hui-Yun
• Format: Article
• Language: English
• Subjects: Crease line; Finite element method; Origami; Perforated; Slits; Spring constant; Stability; Stiffness
• ISSN: 0020-7683; 1879-2146
• DOI: 10.1016/j.ijsolstr.2021.111158

•A perforated crease line design of Kresling origami was implemented.•Perforated crease lines made the origami motion close to a paper origami.•The stability of origami could be altered without changing the size.•A barrier force and spring constant of origami depended on the crease line design. Recently, origami structures have been widely studied for various applications such as mechanical, electrical, bio, and nanosystems. Unlikely paper-like materials, engineering materials have higher stiffness and thickness so the hinge-like motion of the crease of paper origami is impossible. Therefore, origami, which is not made of paper-like materials, has different characteristics from paper origami. Several researchers reported that introducing slits or holes at or near the crease can make the hinge-like motion of the origami, but investigating the effects of the crease line design was not considered. In this paper, a perforated crease line was considered and parametric studies of the crease line design were investigated by finite element analysis and experiment. It was found that the length and distance of the perforated holes were significant factors to determine the stability and the barrier force and spring constant of Kresling origami could be optimized. Finally, it was shown that special motions could be realized with a combination of two origami with the same dimension but different crease line designs.