Academic literature on the topic 'Bimetallic strip'

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Journal articles on the topic "Bimetallic strip"

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Lekhov, O. S., A. V. Mikhalev, and M. M. Shevelev. "PRODUCTION OF THREE-LAYER STEEL BIMETALLIC STRIPS IN THE UNIT OF CONTINUOUS CASTING AND DEFORMATION. REPORT 2." Izvestiya. Ferrous Metallurgy 62, no. 10 (November 3, 2019): 763–68. http://dx.doi.org/10.17073/0368-0797-2019-10-763-768.

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The paper states urgency of the problem of determining stressstrain state of metals of the cladding layer and the main strip in production of three-layer bimetal: alloyed steel-constructional steelalloyed steel. Temperature field of the main strip and cladding layer is given to calculate stress-strain state of metals of three-layer bimetallic strip. Initial data for calculating this stress-strain state are given. To assess the effect of coefficient of friction between cladding layer s and the main strip on stress-strain state of metals in deformation zone, three values of it are taken. Geometric model is described for calculating stress-strain state and metal flow in deformation center of cladding layer. Characteristic lines and points of calculation are provided. Technique for solving the problem of determining stresses and flows in deformation focus is described by finite element method using ANSYS app. Regularities of flow of cladding layer’s metal along the length of deformation center and movement of the main strip of bimetallic ingot are given. Values of mutual displacement of layers of bimetallic strip are determined as a function of deformation degree of the cladding layer. And the recommendations are given on this degree to improve quali ty of a three-layer bimetal. Regularities of distribution of axial and tangential stresses in deformation center are presented for production of steel three-layer bimetallic strips in the unit of combined continuous casting and deformation. Stress state of the cladding layer’s metal in focus of cyclic deformation was estimated from the position of improving quality of three-layer bimetallic strips produced in such unit.
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Lekhov, O. S., A. V. Mikhalev, and M. M. Shevelev. "Production of three-layer steel bimetallic strips in the unit of continuous casting and deformation. Report 1." Izvestiya. Ferrous Metallurgy 62, no. 8 (September 13, 2019): 594–99. http://dx.doi.org/10.17073/0368-0797-2019-8-594-599.

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High technical and economic efficiency of the use of bimetals in chemical, oil, transport and energy engineering and other industries is described. The urgency of creating high-performance continuous processes for the production of bimetallic strips is substantiated. The authors have established the main technological tasks for development of the processes of obtaining bimetal of wide class. The paper describes resource-saving production technology of three-layer bimetals alloyed steel – constructional steel – alloyed steel at the unit of combined process of continuous casting and deformation. Possibilities of the proposed technology are outlined from the standpoint of improving the quality of bimetallic strips. The initial data are given to determine the temperature change over time of the main steel strip as it passes through the molten metal of the alloyed steel. The equations are given for non-stationary heat conduction, initial and boundary conditions for determining the temperature fields of main strip and cladding layer when obtaining a three-layer bimetallic strip on the unit of a combined process of continuous casting and deformation. The values of density, thermal conductivity and heat capacity for steel St3 were determined in a given temperature range. A procedure is described for calculating temperatures in the ANSYS package by solving a non-stationary heat conduction problem in a flat formulation by the finite element method. The authors have described the geometric model for calculating the temperature of strip and molten metal of the cladding layer. Values of the coefficient of heat transfer between the main strip and molten metal of the cladding layers of bimetallic strip are given adopted for calculation. Characteristic points are indicated in the model for calculating the temperatures of main strip and molten metal of the cladding layer. The graphs show temporal changes in these temperatures at production of a three-layer bimetallic strip on the unit of combined process of continuous casting and deformation. Calculated data on the time variation of temperature of main strip and molten metal of the cladding layer at characteristic points are given for different values of the contact heat transfer coefficient.
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Angel, GD, G. Haritos, A. Chrysanthou, and V. Voloshin. "Chord line force versus displacement for thin shallow arc pre-curved bimetallic strip." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 229, no. 1 (April 29, 2014): 116–24. http://dx.doi.org/10.1177/0954406214530873.

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A pre-curved bimetallic strip that is applied with a force in an axial orientation, i.e. along its chord line, exhibits nonlinear force–displacement characteristics. For thin bimetallic strips, whereby the radius of curvature is large compared to the thickness of the strip, the non-linearity tends to be tangent related. The new theoretical formula introduced here was correlated to the results of a set of force–displacement tests, and a good overall fit of the theory to the test data was achieved. The formula put forward in this work enables the evaluation of large chord line displacements but is limited to the permissible stress limits of the material. This work can also be directly applied to thin shallow arc beams of a single material. The application of this work is in the field of bimetallic force–displacement actuators.
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Khatkhate, Amol, R. Singh, and P. T. Mirchandani. "An Elastic Moduli Independent Approximation to the Radius of Curvature of the Bimetallic strip." Material Science Research India 14, no. 1 (June 28, 2017): 68–78. http://dx.doi.org/10.13005/msri/140111.

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A parametric approach has been used to derive an approximate formula for the prediction of the radius of curvature of a thin bimetallic strip that at initial ambient temperature, is both flat and straight, but at above ambient temperature, forms into an arc of a circle. The formula enables the evaluation of the radius of curvature of the strip as a function of heating or cooling. A formula for calculating the radius of curvature of a bimetallic strip already exists, and was produced by Timoshenko in his paper on Bimetallic Thermostats. The formula by Timoshenko has been vigorously tested, tried and proven and accepted in countless papers and journals since its original publication. The parametric approach solution introduced in this work gives an approximate solution to the Timoshenko formula for equal thicknesses of two mating metals within the bimetallic. The Khatkhate Singh Mirchandani (KSM) formula presented here is taken from the first order approximation derived by Angel and Haritos by incorporating the ratio of Young's modulus of the bimetallic materials. Furthermore, researchers in this area have proven that the Young's modulus does not have a significant effect on the radius of curvature. Taking this fact into consideration, the authors have suitably incorporated a correction modifier purely based on the coefficient of thermal expansion (CTE) of the materials. The simulation results and the overall close agreement with the Timoshenko formula has been put forward here. Also, the solution derived by the authors Khatkhate et.al shows better prediction as compared to the solutions derived by other researchers.
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Pionke, Christopher D., and Gerald Wempner. "The Various Approximations of the Bimetallic Thermostatic Strip." Journal of Applied Mechanics 58, no. 4 (December 1, 1991): 1015–20. http://dx.doi.org/10.1115/1.2897676.

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A thin strip, formed by bonding two dissimilar materials, constitutes a simple thermostatic element. If edge effects are neglected, then the strip is reduced to a uniform beam, or plate, with two degrees-of-freedom. The flexure occurs only because of the bond and interfacial shear which is also accompanied by transverse normal stress. These latter stresses are very localized at the end and edges. Here, the elementary approximations, and refinements via finite elements, are presented and compared. Deflections are given with reasonable accuracy by the simple approximations, but the severe interfacial stresses are revealed only by the refinements.
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Klein, Siegfried. "Spherical membrane omnidirectional loudspeaker using a magnetostrictive bimetallic strip." Journal of the Acoustical Society of America 92, no. 5 (November 1992): 3031–32. http://dx.doi.org/10.1121/1.404216.

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Kuo, An-Yu. "Thermal Stresses at the Edge of a Bimetallic Thermostat." Journal of Applied Mechanics 56, no. 3 (September 1, 1989): 585–89. http://dx.doi.org/10.1115/1.3176131.

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The plane stress problem of a semi-infinite, bimetallic thermostat subjected to uniform heating or cooling is treated with the theory of elasticity. Solutions to this problem are expressed as the sum of a basic solution for a bimetallic strip of infinite length and a series of complementary solutions. Interlayer peeling stresses at the free edge of the bimetallic thermostat are shown to be singular or nonsingular (but still higher than the nominal values) depending upon whether the combination of the two Dundurs’ bimaterial constants, α (α−2β), are greater or less than zero. In an example problem, current solutions agree well with finite element results while results predicted by a modified beam theory show a large deviation from the other two solutions near the free edge. Boundary layer effects near the free edges of a bimetallic thermostat are also discussed.
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Noda, Nao-Aki, Kejun Hu, Yoshikazu Sano, Katsma Ono, and Yusuke Hosokawa. "Residual Stress Simulation for Hot Strip Bimetallic Roll during Quenching." steel research international 87, no. 11 (March 21, 2016): 1478–88. http://dx.doi.org/10.1002/srin.201500430.

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Knapp, G. S., M. Ramanathan, H. L. Nian, A. T. Macrander, and D. M. Mills. "A simple sagittal focusing crystal which utilizes a bimetallic strip." Review of Scientific Instruments 63, no. 1 (January 1992): 465–67. http://dx.doi.org/10.1063/1.1142733.

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Baroura, Lazhar, Ommar Bourabbou, Massaoud Bendaoui, and Lahcene Mebarki. "Influence of the Variation of the Thickness of a Bilayers Cu/(001) Fe in Isotropic Elasticity on the Field of Displacements." Diffusion Foundations 18 (September 2018): 79–85. http://dx.doi.org/10.4028/www.scientific.net/df.18.79.

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The knowledge of elastic fields caused by dislocation networks is a network that is sometimes indispensable for the interpretation of images obtained by electron microscopy and for the understanding of physical phenomena. In this axis, the present work makes it possible to determine the elastic behavior of a thin bimetallic isotropic elasticity in the case where the hetero-interface is covered with a parallel network of wedge type detuning dislocations. The topology of the free surfaces is calculated according to the total thickness of the bimetallic strip until a relaxation is reached for a thickness "h" called critical thickness.
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Dissertations / Theses on the topic "Bimetallic strip"

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Laval, Cédric. "Fabrication par pervaporation microfluidique de matériaux composites d'architecture et de composition contrôlées pour la réalisation de MEMS organiques." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0344/document.

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Ce travail de thèse porte sur la réalisation de MEMS organiques dans un dispositif original, le microévaporateur, couplant la technique MIMIC (Micromolding in Capillaries) à la pervaporation microfluidique. Il est expliqué comment le phénomène de pervaporation peut être utilisé pour concentrer des solutions polymériques diluées jusqu'à l'obtention de matériaux composites dans des géométries de dimensions typiques 25 μm x 100 μm x 10 mm. Il a été montré qu'il est possible d'établir des modèles décrivant cette croissance en excellent accord avec l'expérience et l'étude de l'influence de différents paramètres (concentration, géométrie...) sur la croissance a alors permis de prédire les vitesses de croissance des matériaux composites. Deux systèmes ont été réalisés à partir de ces derniers, associés à deux effets : l'effet bilame thermique et l'effet piezorésistif mettant en avant une preuve de concept d'une nouvelle voie de fabrication des MEMS organiques : la voie microfluidique. Un dispositif plus complexe comprenant également des vannes microfluidiques a permis de programmer des matériaux à gradients de composition dans la longueur de divers matériaux allant des cristaux colloïdaux aux matériaux polymères
This work deals with the making of organic MEMS within an original device, the microevaporator, coupling the MIMIC technique (Micromolding in Capillaries) and microfluidic pervaporation. It is shown how the pervaporation phenomenon can be used to concentrate polymeric diluted solutions until we obtain composite materials into geometries with typical dimensions about 25 μm x 100 μm x 10 mm. We showed that it is possible to establish models which describe this growth in excellent agreement with experiments and the study of the influence of different parameters (concentration, geometry...) upon the growth thus allowed us to predict the growth velocities of those composite materials. Two systems have been made associated to two effects : bimetallic strip effect and piezoresistive effect in order to demonstrate a new proof of concept of a new way to make organic MEMS using microfluidics. A more complex device including microfluidic valves allowed us to encode materials with a gradient of composition within their largest dimension from colloidal cristals to polymeric materials
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Book chapters on the topic "Bimetallic strip"

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Li, Chuanyang, Dewei Tang, Hongwei Guo, Huiyin Yan, Weimin Ouyang, Rongqiang Liu, and Zongquan Deng. "Parameters Analysis of SMA Bimetallic Strip Smart Actuator." In Advances in Mechanism and Machine Science, 2599–609. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20131-9_257.

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Comparini, E., and C. Manni. "A Matematical Model for the Production of Bimetallic Strip." In Proceedings of the Fourth European Conference on Mathematics in Industry, 243–47. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-009-0703-4_26.

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Angel, Geoffrey Dennis, George Haritos, and Ian Stuart Campbell. "Spatial Prediction of a Pre-curved Bimetallic Strip Under Combined Loading." In Transactions on Engineering Technologies, 227–40. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-8832-8_17.

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Quan, Zhu. "Solid phase roll cladding of bimetallic strip by cross shear cold rolling." In Advanced Technology of Plasticity 1987, 789–94. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-662-11046-1_15.

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Brahma, K. K., and C. R. L. Murthy. "Bond Quality Evaluation of Bimetallic Strips: Acousto-Ultrasonic Approach." In Acousto-Ultrasonics, 337–44. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4757-1965-9_28.

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Qin, Zhi, Weifeng Peng, Jing Zhang, Donghui Xie, Min Yu, and Kaihong Cai. "Influence of Diffusion Annealing and Subsequent Deformation on Bonding Strength of Cu/Al Bimetallic Strips." In Springer Proceedings in Energy, 637–45. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0158-2_65.

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Conference papers on the topic "Bimetallic strip"

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Lekhov, O. S., M. M. SHevelev, and D. H. Bilalov. "Continuous casting and deformation plant for the production of steel three-layer bimetallic strips." In SCIENCE OF RUSSIA: GOALS AND OBJECTIVES. L-Journal, 2020. http://dx.doi.org/10.18411/sr-10-12-2020-49.

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The technology of obtaining steel three-layer bimetallic strips on the installation of a combined process of continuous casting and deformation is described. The regularities of changes in the temperature of the main steel strip during its passage through the molten metal of the cladding layer are established. The stress-strain state of the metals of the main strip and the cladding layers in the deformation zone during the production of steel three-layer bimetallic strips is determined. The results of a study of the microstructure of the steel 09G2S – steel 13XFA – steel 09G2S bimetal obtained at a pilot installation for continuous casting and deformation are presented.
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Susini, Jean, and Michel Thomas. "Active mirror based on the bimetallic strip effect." In SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, edited by Ali M. Khounsary. SPIE, 1993. http://dx.doi.org/10.1117/12.163807.

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Saidi Reddy, P., K. Srimannarayana, R. L. N. S. Sai Prasad, D. Sen Gupta, M. Sai Shankar, and P. Kishore. "Enhancing the temperature sensitivity of fiber Bragg grating sensor using bimetallic strip." In Asia Pacific Optical Sensors Conference, edited by John Canning and Gangding Peng. SPIE, 2012. http://dx.doi.org/10.1117/12.914056.

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Pe´rez Sa´nchez, Mari´a M., David Balam Tamayo, and Ricardo H. Cruz Estrada. "Design and Construction of a Dual Axis Passive Solar Tracker, for Use on Yucata´n." In ASME 2011 5th International Conference on Energy Sustainability. ASMEDC, 2011. http://dx.doi.org/10.1115/es2011-54428.

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In this investigation, we propose to use the thermal expansion properties of metals in a bimetallic strip as a base of operation of a passive solar tracker. The design process involved the determination of all aspects necessary to make a first prototype based on requirements and operating conditions previously identified. Predictive mathematical models were used to decide critical aspects. Certainly, some aspects of the design were determined experimentally to ensure the proper functioning of the solar tracker. The product of this research was the construction of a prototype with the ability to be placed with an average angular difference of 25 degrees to the position of the sun, under controlled conditions. The device created is a passive solar tracker with two degrees of freedom, one used to track the sun daily, operates automatically actuated by the bimetallic strip, the other one is manually adjusted in seasonal changes to compensate the variation in the decline of the sun along the year. Although the accuracy of the system is low, the cost of production is well below the purchase price of any commercial solar tracker, and its construction is simple, making it an economical alternative to increase the production of photovoltaic energy on a PV panel currently fixed.
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Peng, H. J., S. P. Wong, and Shounan Zhao. "Study of Thin Film-Edge Induced Stresses in Silicon Substrates by Infrared Photoelasticity." In ASME 2001 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/detc2001/rsafp-21743.

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Abstract In this work, we shall report the direct observation of the stress field in the silicon substrate induced by an oxide thin film edge using the infrared (IR) photoelastic (PE) method. Our experimental results showed that the earlier analytical solutions cannot give a satisfactory description of the observed IR PE stress fringe patterns. A simple model is developed to treat the stress field under the film edge as a superposition of two contributions. One term is as described by the concentrated force model proposed by Hu which is singular at the thin film edge. The other term is non-singular corresponding to the contribution as described by the bimetallic strip theory. The simulation images of stress fringe patterns are obtained according to this model. Good agreement is found between the simulated and experimental stress fringe patterns. In addition, the effects of film thickness and substrate thickness on the stress distribution in this structure were also investigated.
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Germer, M., U. Marschner, J. H. Yoo, and A. B. Flatau. "Equivalent Electromechanical Circuit Analysis for Electrical Tuning of Magnetostrictive Unimorph System Dynamics." In ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/smasis2016-9274.

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Equivalent electromechanical circuit analysis models provide efficient tools for analysis of power flow across multiple physical domains. In this work, we use this tool to develop a model of the power flow through mechanical, magnetic and electrical domains for analysis of magnetostrictive material-based devices. The magnetostrictive unimorph system in this study consists of a magnetostrictive galfenol (Fe-Ga alloy) layer bonded to a non-magnetic flexible metal layer, a pickup coil wound around the bimetallic strip and an electrical load. Permanent magnets are used to set a magnetic bias field and to provide a tip mass load at the free end of the cantilevered unimorph. The electrical load is connected to the pickup coil, such that vibration in the magnetostrictive alloy layer caused by the vibrating structure generates electrical energy that is dissipated by the electrical load, thereby damping the vibrations in the structure. The pickup coil output voltage varies with fluctuation in the magnetic flux density due to vibration of the beam. The electrical load discussed in this paper includes an inductance and a resistor (work that also includes capacitance is on-going). An electromechanical circuit model of the electrically loaded magnetostrictive unimorph system is used to study system dynamics. For this purpose the circuit description is simplified by a transformation of the electrical and magnetic elements into the mechanical domain. The network model of this system and simulations of its dynamic behavior are presented.
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Lekhov, O. S., A. V. Mihalev, M. M. SHevelev, and D. H. Bilalov. "Installation of a combined continuous casting and deformation process for production of sheets, billets and bimetallic strips." In SCIENCE OF RUSSIA: GOALS AND OBJECTIVES. L-Journal, 2021. http://dx.doi.org/10.18411/sr-10-02-2021-28.

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