نتایج جستجو برای: bending tools
تعداد نتایج: 293978 فیلتر نتایج به سال:
this study was aimed to investigate the bending moment and stress (inner and outer corners) in lshaped biscuit joint made of solid wood, particleboard and medium density fiberboard (mdf). for this purpose, l-shaped joints made of beech and fir, particleboard and mdf by biscuit size numbers of 0 (47×15×3.8 mm), 10 (53×19×3.8mm) and 20 (60×23×3.8mm). bending moment and stress carrying capacity of...
BACKGROUND Measurement of the bending stiffness a healing fracture represents a valid variable in the assessment of fracture healing. However, currently available methods typically have high measurement errors, even for mild pin loosening. Furthermore, these methods cannot provide actual values of bending stiffness, which precludes comparisons among individual fractures. Thus, even today, littl...
A fast multipole boundary element method (BEM) for solving large-scale thin plate bending problems is presented in this paper. The method is based on the Kirchhoff thin plate bending theory and the biharmonic equation governing the deflection of the plate. First, the direct boundary integral equations and the conventional BEM for thin plate bending problems are reviewed. Second, the complex not...
The bending strength of a wide variety of bony types is shown to be nearly linearly proportional to Young's modulus of elasticity/100. A somewhat closer and more satisfactory fit is obtained if account is taken of the variation of yield strain with Young's modulus. This finding strongly suggests that bending strength is determined by the yield strain. The yield stress in tension, which might be...
DNA bending is an important structural feature for indirect readout in protein-DNA recognition. The binding of papillomavirus E2 transcription factors to their DNA binding sites is associated with DNA bending, providing an attractive model system to study the origins of sequence-specific DNA bending. The consensus E2 target is of the general form ACCGN(4)CGGT with a variable four base pair regi...
این طرح ارائه گر مدلی برای پیش بینی مقدار خمش تیغ فرز انگشتی در فرآیند فرز کاری است. در این طرح ابتدا با شبیه سازی فرآیند، فرز کاری با تیغ فرز انگشتی (ابزار) توسط نرم افزار abaqus، مقادیر نیرو و خمش حاصل از آن در ابزار بدست آورده شده، سپس این مقادیر با مقادیر حاصل از فرمولهای تئوری و نتایج حاصل از آزمایشات تجربی مقایسه شده است. در این طرح بعد از رسیدن به توانمندی شبیه سازی فرآیند، با استفاده ...
Lower limbs are normally the first contacted body region during car-pedestrian accidents, and easily suffer serious injuries. The previous tibia bending tolerances for pedestrian safety were mainly developed from three-point bending tests on tibia mid-shaft. The tibia tolerances of other locations are still not investigated enough. In addition, tibia loading condition under the car-pedestrian i...
The problem of compensation of infinite-dimensional actuator or sensor dynamics of more complex type than pure delay was solved recently using the backstepping method for PDEs. In this paper we construct an explicit feedback law for a multi-input LTI system which compensates the wave PDE dynamics in its input and stabilizes the overall system. Our design is based on a novel infinite-dimensional...
Juan A. López1, Enrique Sedano1, Luis Esteban2, Gabriel Caffarena3, Angel Fernández-Herrero1 and Carlos Carreras1 1Departamento de Ingeniería Electrónica, Universidad Politécnica de Madrid, 2Laboratorio Nacional de Fusión, Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), 3Departamento de Ingeniería de Sistemas de Información y de Telecomunicación, Universidad CEU-...
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