XETIC
During my time as a research assistant at MIT's Design Lab, I had the opportunity to work on a project for Puma, a leading global sportswear company. Our goal was to develop a high-performance running shoe sole that would enhance both comfort and performance. This led us to explore the potential of auxetic materials, which exhibit a unique property of becoming thicker when stretched, unlike traditional materials.
My role in the project involved developing a finite element analysis model. This allowed us to rapidly simulate various geometries for auxetic structures, enabling us to efficiently evaluate different design options and accelerate the design iteration process.
This research contributed to the development of Puma's Xetic technology, which incorporates auxetic structures in its cushioning system. The Xetic technology is designed to deliver a more comfortable and responsive running experience, while also enhancing durability.
This project highlighted the power of combining computational design and materials science to achieve innovative solutions. It reinforced my commitment to exploring new technologies and pushing the boundaries of design.
Link: PUMA ENTERS NEW ERA WITH CUSHIONING TECHNOLOGY XETIC | PUMA®
The initial geometry search using finite element simulation on Abaqus was conducted to identify a geometry
that exhibits a clear two-phase hardness change before the cell walls contact and after.
A gate pressure mapping and the pressure-displacement curve for each wall thickness of a pattern are created to identify the inflection points in each geometry.
FEM simulation of the full-size sole section
I also invented a makeshift mold made from machined modeling wax with 3D-printed pins.
The mold was used to cast urethane rubber sole sections with different hardness levels to test their actual behavior under pressure.
