This paper presents the development of a new compact three-axis compliant stage employing piezoelectric actuators and a new flexure structure. A proposed stage works out-of-plane (Z, θx, θy) direction. The stage consists of 4 amplification flexures mounted piezoelectric actuators. New structure of flexure reduces height and enhances dynamic performance of stage. To certify excellent performance...

Thermoplastic braided composite tubular beams were manufactured using commingled hybrid yarn with braid angles 30°, 45° and 60° tested in static three-point flexure. Two principal deformation modes observed during the flexural loading: global flexure localised crush. The extent of each mode occurring three angle variants was measured a linear deflectometer as well 3D digital image correlation. ...

A trigonometric plate theory is assessed for the static bending analysis of plates resting on Winkler elastic foundation. The theory considers the effects of transverse shear and normal strains. The theory accounts for realistic variation of the transverse shear stress through the thickness and satisfies the traction free conditions at the top and bottom surfaces of the plate without using shea...

An experimental investigation on the dynamic fatigue response of dentin was conducted to examine the influence of stress rate on the strength and energy to fracture. Rectangular beams were prepared from the coronal dentin of bovine maxillary molars and subjected to four-point flexure to failure. The dentin beams were examined in the fully hydrated and dehydrated condition at stress rates (sigma...

In mode II interlaminar fracture toughness tests of composite laminates, the evaluated based on linear elastic mechanics deviates from true due to material nonlinearity matrix. this study, an elastoplastic finite-element analysis was performed a new quasi-static test, i.e., doubly end-notched tension (DENT) investigate difference between perceived energy release rate and J-integral. The effect ...

= Abstract = To investigate why calcification is accelerated by mechanical flexure, in vitro calcification of segmented polyurethane (SPU) under static elongation and dynamic mechanical flexure was performed. After the calcification period, the amount of calcium deposition was increased by elongation, but the amount of calcium deposition per unit area of the elongated surface was relatively sma...

By combining static input–output decoupling transformations with hexapod geometric design, the highly coupled dynamics of a flexure jointed hexapod can be decoupled. Several algorithms have been proposed which result in different sets of decoupled inputs and outputs, and which can use a variety of feedback measurements (position, velocity, acceleration, or force in either joint or Cartesian spa...

This study deals with the applications of a trigonometric shear deformation theory considering the effect of the transverse shear deformation on the static flexural analysis of the soft core sandwich beams. The theory gives realistic variation of the transverse shear stress through the thickness, and satisfies the transverse shear stress free conditions at the top and bottom surfaces of the bea...

Experimental results for quasi-static cyclic tests on reinforced concrete (RC) walls have shown that shear deformations can constitute a significant ratio of the total deformations when the wall is loaded beyond the elastic regime. For walls, which form a stable flexural hinge at their base, the ratio of shear to flexural deformations remains approximately constant over the entire range of impo...