10 papers
Spatiotemporal Disk Packing for Directed Growth of Complex Geometries
Yigit Hergul, Yun Seong Kim, Rohan Shah +2
Growing complex shapes requires control over both where growth begins and how it evolves in time. Here, we introduce a geometric framework for growing prescribed 2D shapes using a…
Embedded Direct Ink Writing of Thermoset and Elastomeric Polymers via Frontal Polymerization
Mohammad Tanver Hossain, Yun Seong Kim, Pallab Layek +10
Direct ink writing (DIW) using frontal ring-opening metathesis polymerization (FROMP) offers a compelling route to the rapid and energy-efficient fabrication of thermoset and elast…
Principles of Use of Tensile J-Curve Materials in Antagonistic Arrangements
Liuyang Cheng, Wonsik Eom, Qiong Wang +8
Natural ligaments are soft connective tissues that must simultaneously provide high stretchability to enable dexterous flexibility and high stiffness to protect the musculoskeletal…
Physics of unraveling and micromechanics of hagfish threads
Mohammad Tanver Hossain, Dakota Piorkowski, Andrew Lowe +5
Hagfish slime is a unique biological material composed of mucus and protein threads that rapidly deploy into a cohesive network when deployed in seawater. The forces involved in th…
High-throughput viscometry via machine-learning from videos of inverted vials
Ignacio Arretche, Mohammad Tanver Hossain, Ramdas Tiwari +6
Although the inverted vial test has been widely used as a qualitative method for estimating fluid viscosity, quantitative rheological characterization has remained limited due to i…
Actuation mechanisms in twisted and coiled polymer actuators using finite element model
Gurmeet Singh, Qiong Wang, Samuel Tsai +3
Twisted and coiled polymer actuators (TCPAs) offer the advantages of large stroke and large specific work as compared to other actuators. There have been extensive experimental inv…