kaushik das's blog

Recently we analyzed water-slamming impacts on sandwich composite hulls. Water slamming impact problems are very interesting problems involving fluid-structure interactions.  A link to our paper and the abstract are given below. I hope that you will find the paper interesting. Please feel free to write your comments below.      

Kaushik Das and Romesh C. Batra, Local water slamming impact on sandwich composite hulls, Journal of Fluids and Structures, Volume 27, Issue 4, May 2011, Pages 523-551

Arch-shaped microelectromechanical systems (MEMS) have been used as mechanical memories, micro-relays, micro-valves, optical switches, and digital micro-mirrors. A bi-stable structure, such as an arch, is characterized by a multivalued load deflection curve. Here we study the symmetry breaking, the snap-through instability, and the pull-in instability of a bi-stable arch shaped MEMS under static and dynamic electric loads.<!--break-->   Unlike a mechanical load, the electric load is a nonlinear function of the a priori unknown deformed shape of the arch.