Date of Graduation


Document Type


Degree Name

Bachelor of Science in Industrial Engineering

Degree Level



Industrial Engineering


Liao, Haitao

Committee Member/Reader

Rainwater, Chase E.


Technological innovation progresses at an ever-increasing rate, and this is especially true in the field of 3D-printing. 3D-printing has become popular in manufacturing settings and among amateur hobbyists alike, largely because 3D-printers can fabricate an enormous number of designs from an array of materials and allow for fine-tuning through several setting options. Individuals with proficient 3D-printing abilities can produce a nearly infinite number of components for diverse applications in manufacturing, recreation, ergonomics, and many more. Some individuals use their skills to create functional substitutes for name-brand items, including bands to fit and be worn with a smart watch. However, little is known about how various print setting options may affect the quality and durability of printed components. This research seeks to uncover how some design changes can affect these physical properties. We use a full factorial experiment to test the effects of print infill pattern and print infill density on the peak tensile strengths of printed components and conduct a bend test to study the durability of such components.


3D-Printing, Factorial Design, Tensile Strength, Fatigue, Infill Pattern, Infill Density