نتایج جستجو برای: Tapered Member
تعداد نتایج: 97094 فیلتر نتایج به سال:
A formulation for finite element analysis of tapered and monosymmetric I shaped beam-columns is presented. This is a general way to analyze these types of complex elements. Based upon the formulation, member stiffness matrix is obtained explicitly. The element considered has seven nodal degrees of freedom. In addition, the related stability matrix is found. Numerical studies of the aforementio...
Introduction The most common approach for obturation of roots, which are treated endodontically, is lateral condensation. Finger spreaders have an essential role in packing the gutta-percha cones. We carried out this research to compare the compaction index of root canal obturation obtained with stainless steel (SS) spreader, nickel-titanium (NiTi) spreader, and different gutta-percha tapers. ...
is a member of URSI Commission B, a senior member of the IEEE, and a member of the Eta Kappa Nu and Sigma Xi honor societies. He has approximately 100 journal and conference publications in the field of electromagnetics. His current research interests include electromagnetic and guided-wave theory, electromagnetic propagation and radiation in complex media and structures and electromagnetic mat...
Tapered composite poles with biomimicry features as in bamboo are a new generation of wood laminated composite poles that may some day be considered as an alternative to solid wood poles that are widely used in the transmission and telecommunication fields. Five finite element models were developed with ANSYS to predict and assess the performance of five types of composites members: a tapered h...
Introduction: The most common approach for obturation of roots which were treated endodontically is lateral condensation. Finger spreaders have an essential role in packing the gutta-percha cones. This survey was carried out to compare the compaction index of root canal obturation made by Stainless Steel (SS) and Nickel-Ttitanium (Ni-Ti) spreaders and different gutta-percha tapers. Materials a...
In this article, crashworthiness performance and crushing behavior of tapered structures with four internal reinforcing plates under axial and oblique dynamic loadings have been investigated. These structures have a tapered form with five cross sections of square, hexagonal, octagonal, decagon and circular shape. In the first step, finite element simulations performed in LS-DYNA were validated ...
In the present study, the author’s previous experimental investigations on the vortex induced vibration of uniform and tapered circular cylinders are numerically simulated. The circular cylinders have medium mass ratios (5.93, 6.1), low mass-damping parameters (0.0275, 0.0279) a mean diameter of 0.028m and an aspect ratio of about 14. A fully coupled two-way fluid-structure interaction (FSI) an...
Supervisory Committee Dr. Thomas Edward Darcie, (Department of Electrical and Computer Engineering) Supervisor Dr. Jens Bornemann, (Department of Electrical and Computer Engineering) Departmental Member Dr. Colin Bradley, (Department of Mechanical engineering) Outside Member In this thesis, novel broadband waveguides capable of operating at terahertz (THz) frequencies are introduced. We explore...
in this paper, a novel technique on friction aided deep drawing using tapered blank holder divided into eight segments is proposed to overcome defect of friction aided deep drawing using four segments tapered blank holder technique. a taper blank holder is designed to be of two parts: stationary part with 5 degree taper angle and moving parts divided into eight tapered segments. the main functi...
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