We investigate the global bifurcations and multipulse chaotic dynamics of a simply supported laminated composite piezoelectric rectangular thin plate under combined parametric and transverse excitations. We analyze directly the nonautonomous governing equations of motion for the laminated composite piezoelectric rectangular thin plate. The results obtained here indicate that the multipulse chao...

Cross-laminated timber is increasingly being used in the construction of high-rise buildings due to its simple manufacturing system. In term of fire resistance, cross-laminated timber panels are promoted as having excellent fire resistance, comparable to that of non-combustible materials and to heavy timber construction, due to the ability of thick wood assemblies to char slowly at a predictabl...

In this paper, three fundamental techniques to improve laminated passive elements are proposed for wearable haptic displays. First, a new shape of sheet surfaces in laminated passive elements is introduced. Sliding motion between laminated sheets causes unexpected bad effect to static stiffness. An effective triangle shape for sheet surfaces, which prevents from sliding, has been analyzed. This...

The cage and reluctance rotors are two major types of rotor structures used in the doubly fed brushless machine (DFBM). In order to study comparatively the effects of different rotor structure on the DFBM, a prototype machine has been specially designed and built. The experimental parameter and performance comparisons between the axially laminated anisotropic (ALA) and cage-rotor machines are p...

A nano-stereolithography (NSL) apparatus has been developed for fabrication of microstructures with the resolution of approximately 100 nm. In the NSL process, a complicated 3D structure can be fabricated by building layer by layer, so it does not require any sacrificial layer or any supporting structure. A laminated layer was fabricated by means of solidifying liquid-state monomers using twoph...

In the treatment of orbital floor fractures, bone is ideally regenerated. The materials currently used for orbital floor reconstruction do not lead to the regeneration of bone. Our objective was to render polymeric materials based on poly(trimethylene carbonate) (PTMC) osteoinductive, and to evaluate their suitability for use in orbital floor reconstruction. For this purpose, osteoinductive bip...

In this study, a novel numerical method is proposed for determination of mode-I interlaminar fracture toughness, GIc, in multi-directional (MD) double cantilever beam (DCB) specimens using fracture properties of unidirectional DCB specimens. Two factors, β and Dc are defined to minimize the undesirable effects on strain energy release rate. β describes the difference between maximum and average...

The purpose of this study is to establish a design method for the splitting strength glued laminated timber beam with two round holes. In paper, proposed by formulating ratio maximum tensile stress perpendicular grain acting around hole as distance between holes decreases, using finite element analysis. Then, three-point bending tests were conducted on wood holes, and experimental calculated va...

Abstract In order to study the vibration of composite wind turbine blades, a Green’s function method for frequency calculation is proposed. Based on variational asymptotic and Hamilton principle, mechanical model blade, modelled as box beam with laminated structure, established by using circumferential asymmetric stiffness design. The Green used analyze blades from aspect ply angle, numerical e...

Our concern in the present work is a Timoshenko laminated beam system with nonlinear delay and structural damping acting equation describing dynamics of slip. The aim to establish an explicit general energy decay rates solution under suitable assumptions on weight speeds wave propagation. To achieve our desired stability results, we exploit some properties convex functions, coupled multiplier t...