This paper describes a new class of flight control actuators using Post-Buckled Precompressed (PBP) piezoelectric elements. These actuators are designed to produce significantly higher deflection and force levels than conventional piezoelectric actuator elements. Classical laminate plate theory (CLPT) models are shown to work very well in capturing the behavior of the free, unloaded elements. A...

The minimum surface tension and respreadability of a surfactant monolayer is limited by a two to three dimensional instability called collapse. Liquid-condensed or solid phase monolayers collapse via fracture followed by loss of material. Liquid-expanded phase monolayers collapse by solubilization into the subphase. Monolayers that retain a continuous liquid-expanded phase network surrounding i...

Paul Z. Hanakata,1,* A. S. Rodin,2 Alexandra Carvalho,2 Harold S. Park,3 David K. Campbell,1,† and A. H. Castro Neto2 1Department of Physics, Boston University, Boston, Massachusetts 02215, USA 2Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, 6 Science Drive 2, 117546, Singapore 3Department of Mechanical Engineering, Boston University, Boston, Ma...

X-ray absorption ne structure (XAFS) measurements of mixed salts Rb x K 1?x Br and RbBr y Cl 1?y at their congruent melting points compositions reveal that their actual structure buckles about the NaCl average structure with an rms angular deviation from collinearity of 7-9. XAFS measures the buckling directly through three body correlations, and veriies the homogene-ity and randomness of the m...

Classical continuum mechanics is used extensively to predict the properties of nanoscale materials such as graphene. The bending rigidity, κ, is an important parameter that is used, for example, to predict the performance of graphene nanoelectromechanical devices and also ripple formation. Despite its importance, there is a large spread in the theoretical predictions of κ for few-layer graphene...