Topic
Deflection (engineering)
About: Deflection (engineering) is a research topic. Over the lifetime, 30862 publications have been published within this topic receiving 298849 citations.
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TL;DR: In this paper, a new simple and efficient two-dimensional frame finite element (FE) is proposed to accurately estimate the load-carrying capacity of reinforced concrete (RC) beams flexurally strengthened with externally bonded fiber reinforced polymer (FRP) strips and plates.
61 citations
TL;DR: In this paper, the authors report on the implementation of laterally electrostatically actuated, torsionally suspended silicon-on-insulator (SOI) micromirrors with a static optical deflection angle of over 40/spl deg/ peak-to-peak.
Abstract: We report on the implementation of laterally electrostatically actuated, torsionally suspended silicon-on-insulator (SOI) micromirrors with a static optical deflection angle of over 40/spl deg/ peak-to-peak. Decoupling the actuator and mirror design allows for large actuator arrays, allowing large dc deflection angle and high resonant frequency to coexist in the same device. The micromirror structures are fully monolithic, micromachined from the front side and back side of an SOI wafer-device layer. In-plane actuation is transformed into out-of-plane motion and rotation, enabling integration of a wide variety of SOI-MEMS sensors, actuators, and micromirrors. When operated in resonance at 1321 Hz, a typical device measured up to 92/spl deg/ peak-to-peak optical deflection at 127 Vdc with 15 Vac amplitude.
61 citations
TL;DR: In this article, the authors present a virtual machining system to enforce dimensional, geometrical and tool deflection errors in three-axis milling operations, and the output of the system is the modified codes which will produce actual machined part in the virtual environment.
61 citations
31 Dec 1968
TL;DR: In this article, a displacement-type finite element of triangular shape is developed and applied to the solution of several problems in the bending of plates The deflection is represented by a fifth degree polynomial in the Cartesian co-ordinates of the midplane Six deflection parameters are specified at each vertex, yielding a total of 18 degrees of freedom for the element.
Abstract: A fully conforming, displacement-type, finite element of triangular shape is developed and applied to the solution of several problems in the bending of plates The deflection is represented by a fifth degree polynomial in the Cartesian co-ordinates of the mid-plane Six deflection parameters, namely the displacement and its first and second derivatives, are specified at each vertex, yielding a total of 18 degrees of freedom for the element Examples treated include static and dynamic analyses of a square plate with edges simply supported or clamped; statics of a triangular, simply-supported plate; and vibrations of cantilevered triangular plates Rates of convergence of the finite element approximations are investigated both theoretically and numerically Excellent accuracy is achieved in all cases, and the rates of error convergence agree closely with predicted asymptotic values
61 citations
TL;DR: In this article, the von Karman plate theory was used to analyze composite laminates under in-plane and transverse loadings, and the governing equations were reduced to linear differentia with nonlinear boundary conditions yielding a simple solution procedure.
Abstract: Linear laminated plate theory is shown to be inadequate for analysis of asymmetric composite laminates, even in the small deflection range. The von Karman plate theory was used to analyze composite laminates under in-plane and transverse loadings. For cylindrical bending problems, the governing equations were reduced to linear differentia} equations with nonlinear boundary conditions yielding a simple solution procedure. Cross-plied laminates were used as examples.
61 citations