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Past Projects (Personal, Class Projects, Internships, Research, Clubs)
Research: Optimization of 3D Printed Structures for Tensile Strength under Yung C. Shin
I had the opportunity to conduct research under Professor Yung C. Shin at Purdue in the Fall of 2022, looking into the design and optimization of 3D printed components for tensile strength. While there are a few common methodologies that people most often follow, these are limited by the ability of the 3D printer slicer software used. I first spent time researching all of the different failure modes of common 3D printing techniques, and then for the remainder of my work, designed custom tool-pathing to mitigate these failure modes and optimize for stress flow throughout the part. I followed the ASTM D638 Type IV dogbone shape for testing.
The results of the work showed a very slight increase in ultimate tensile strength at about .7% over the course of several specimens, but variance in ultimate tensile strength failure dropped by 63%, making the custom-part significantly more predictable.
Failure Mode Examples:
Improper Print Settings resulting in layer adhesion issues
Underextrusion:
Stress Risers:
A basic image of toolpath design:
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