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Prof. Zhigang Suo to present Robert Henry Thurston Lecture at ASME IMECE 2012

Jianliang Xiao's picture

Robert Henry Thurston Lecture
10:00am- 12 noon, Monday, November 12
Zhigang Suo, Harvard University
Presentation Title: Soft Materials and Soft Machines

Machines in engineering use mostly hard materials, while machines in nature are often soft. This conspicuous contrast has been a source of inspiration for the nascent field of soft machines. What does softness impart to the life of animals and plants? Softness enables large deformation, which in turn provides vital functions. Familiar examples include the beating of the heart, the sound shaped by the vocal folds, and the accommodation of the eye. In the emerging field of soft machines, deformation of soft materials is used to provide functions such as regulating flow in microfluidics, modulating light in adaptive optics, and interfacing tissues with stretchable electronics. Soft materials can deform in response to stimuli other than mechanical forces. Dielectric elastomers deform under voltage. Hydrogels swell in response to changes in humidity, pH, temperature, and concentration of salt. How do mechanics and chemistry work together to generate large deformation? How do molecular processes and geometric layouts affect functions of devices? How efficiently can materials convert energy from one form to another? These questions are stimulating new and exciting developments. This lecture highlights soft materials that enable the creation of soft machines.

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