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134889 https://hdl.handle.net/2286/R.I.42611 http://rightsstatements.org/vocab/InC/1.0/ 2016-12 35 pages eng Sundar, Vaasavi Jiang, Hanqing Kingsbury, Dallas Mechanical and Aerospace Engineering Program School of Social Transformation Barrett, The Honors College Text The purpose of this project focuses on analyzing how a typically brittle material, such as PLA, can be manipulated to become deformable, through the development of an origami structure, in this case—the Yoshimuri pattern. The experimental methodology focused on creating a base Solidworks model, with varying hinge depths, and 3D printing these various models. A cylindrical shell was also developed with comparable dimensions to the Yoshimuri dimensions. These samples were then tested through compression testing, with the load-displacement, and thus the stress-strain curves are analyzed. From the results, it was found that generally, the Yoshimuri samples had a higher level of deformation compared to the cylindrical shell. Moreover, the cylindrical shell had a higher stiffness ratio, while the Yoshimuri patterns had strain rates as high as 16%. From this data, it can be concluded that by changing how the structure is created through origami patterns, it is possible to shift the characteristics of a structure even if the material properties are initially quite brittle. Engineering Honors Mechanical Engineering An Analysis of the Mechanical Properties of 3D Printed Origami Structures