A displacement-based finite element for the analysis of laminated composite beams is formulated using strain gradient notation. The definition of the beam’s longitudinal displacement possesses only the independent term (axial displacement) and a term which is linear in the thickness coordinate z. Thus, the finite element is first-order shear deformable. As strain gradient notation is physically...

Nowadays in the construction of modem buildings, it is necessary to accommodate pipes and ducts services, such as air conditioning, water supply, sewerage, electricity, computer networks, telephone networks. Cellular members – steel I‐ shaped structural elements with circular web openings at regular intervals have been used beams for more than 35 years now. Although past already a large deal re...

We describe the design of Fourier type array generators and beam shapers as periodic configurations refractive-diffractive optical elements in microscale to provide specific shaping imaging functionaliies. investigate how addition micro-nanostructures regular microstructure arrays enables new degrees freedom for micro-optical systems, combination with adapted fabrication techniques yields a bet...

The size effects that reveal the dramatic changes of mechanical behaviour at nanoscales have traditionally been analysed for regular beam systems. Here, the method of using finite-element analysis is explored with the intention of evaluating the size effects for complex nanostructures. The surface elasticity theory and generalized Young-Laplace equation are integrated into a beam element to acc...

ABSTRACT: This paper describes analysis of deep beams subjected to two point loading with three different L/D ratios (1.5, 1.6, 1.71) using Non-linear Finite element method (ANSYS 9.0 software) in order to investigate the stress and strain distribution pattern at mid-section of the beam. In ANSYS 9.0 software, SOLID 65 and LINK 8 element represent concrete and reinforcing steel bars. Non-linear...

A smart structure cantilever beam is a distributed parameter system that employs sensors and actuators at different finite element locations on the beam and makes use of controllers that respond to inputs obtained from the sensors. The paper uses the mathematical modeling of the smart structure using finite element method and Euler Bernoulli beam assumptions. A state space model of the beam as ...