Shab gave a nice presentation yesterday on “Wear mechanisms of chemically and physically crosslinked hydrogels under mild abrasions.” Congrats to entering the final phase!
As soft robots are the new normal, polydimethylsiloxane, or PDMS, is becoming ubiquitious in labs. You know it as the material that makes “sticky hands” you throw against the wall, and it can be a clear, or slightly cloudy (turbid) soft solid. It can be molded into any shape conceivable, especially shapes with more than […]
Shab’s been busy lately, and it shows. Congrats for winning a travel award for IMECE 2019 in Salt Lake City to present her work “Abrasive wear behavior of polyacrylamide hydrogels under a range of loads and sliding speeds.”
Lihua worked hard with the Wissa group and Alleyne group to identify part of the mechanism of the click beetle hinge, and friction effects of diffraction grating features on insect cuticle. Congratulations Lihua!
We have sought the answer to this question for years! In fact, I started working with contact lenses as an undergraduate at Florida in Greg Sawyer’s lab. Our answer at the time was “chemistry.” Our answer through the years shifted to consider structured surface layers, polymer fluctuation, and hydration, among others. But it is just […]
Congratulations to Jiho on his contact measurements to provide some baselines of properties of PDMS to help with Professor Hutchens’ work on soft fracture using cavitation rheology! And if you are new to the word, just imagine inserting a needle into your jello and blowing a hole in it! This paper can help predict the […]
Hao has worked hard over the past two years to flip current testing trends to see how pure rolling (the onset of RCF) affects subsequent wear. Look for a paper later this year!
When you see these images of the beetle peg morphology, doesn’t it make you wonder about the contact mechanics? Us too! In this work by Ophelia and Lihua, we describe how the snap of the click beetle is enabled by the rigid peg. But we also say that the contact mechanics matter. So interesting how […]
Preparing for a life in academia has many aspects, none of which a single mentor can adequately cover! Illinois offers 30 students throughout the Grainger College of Engineering a fellowship and two semesters of workshops and assignments to cover more of the bases; it’s the Mavis Future Faculty Fellows Academy. I’m ecstatic to report that […]
My collaborators Aimy and her student Ophelia presented two great talks about our ongoing work understanding how energy is generated and leveraged in the snap maneuvers of click beetles! Check out our prior paper for more details, and be on the lookout for at least 2 more publications this year! Many thanks to Sheila Patek […]