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pattern formation

Fan Xu's picture

Photo-controlled patterned wrinkling of liquid crystalline polymer films on compliant substrates

Photo-chromic liquid crystalline polymer (LCP) is a type of smart materials which are sensitive to light. Here we harness its photo-mechanical response to flexibly control surface patterning, through modeling a film involving homeotropic nematic liquid crystals with director perpendicular to the polymer film attached on a compliant substrate. Theoretical and numerical analyses were conducted to explore the surface instability of such film/substrate systems under both uniform and non-uniform illuminations by ultraviolet (UV) light, respectively.

Antonio Papangelo's picture

Cyclic response of friction damped mechanical systems - PhD thesis - part II

This is the "part II" of my PhD thesis.

It addresses the problem of finding the dynamic cyclic response of mechanical systems experiencing dry friction with a particular focus on the influence of varying normal and tangential loads. I first start from a single degree of freedom model and gradually increase the complexity of the system. In the last chapter I address a system with 12 degrees of freedom which shows localized vibration states, that are very similar to solutions known in other physics fields like optics and fluid dynamics. 

Pattern formation in plastic liquid films on elastomers by ratcheting

See our newly discovered phenomena, Pattern formation in plastic liquid films on elastomers by ratcheting

Here is the abstract:

Yu-Xin XIE's picture

Call for abstracts: International Workshop on Pattern Formation in Soft Materials

 

Dear Colleagues,

You are welcome to submit abstracts to the workshop of  "International Workshop on Pattern Formation in Soft Materials" chaired by Prof. Zhigang Suo & Prof. Yibin Fu, which will be held from 1th to 4th of June 2015 in Tianjin, China.  More details could be got by clicking on http://www.iwsm2015.org/. Thanks for your attention.

Best wishes,

Yu-Xin XIE

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