It gives the contact stress as a function of the normal contact force, the radii of curvature of both bodies and the modulus of elasticity of both bodies. This amount of deformation is dependent on the modulus of elasticity of the material in contact. Hertzian contact stress refers to the localized stresses that develop as two curved surfaces come in contact and deform slightly under the imposed loads. Hertz was attempting to understand how the optical properties of multiple, stacked lenses might change with the force holding them together. The original work in contact mechanics dates back to 1881 with the publication of the paper "On the contact of elastic solids" ( "Ueber die Berührung fester elastischer Körper") by Heinrich Hertz. Applications of contact mechanics further extend into the micro- and nanotechnological realm. Current challenges faced in the field may include stress analysis of contact and coupling members and the influence of lubrication and material design on friction and wear. Principles of contacts mechanics are implemented towards applications such as locomotive wheel-rail contact, coupling devices, braking systems, tires, bearings, combustion engines, mechanical linkages, gasket seals, metalworking, metal forming, ultrasonic welding, electrical contacts, and many others. Contact mechanics provides necessary information for the safe and energy efficient design of technical systems and for the study of tribology, contact stiffness, electrical contact resistance and indentation hardness. The physical and mathematical formulation of the subject is built upon the mechanics of materials and continuum mechanics and focuses on computations involving elastic, viscoelastic, and plastic bodies in static or dynamic contact. Normal stresses are caused by applied forces and by the adhesion present on surfaces in close contact even if they are clean and dry.Ĭontact mechanics is part of mechanical engineering. Frictional contact mechanics is discussed separately. This page focuses mainly on the normal direction, i.e. A central distinction in contact mechanics is between stresses acting perpendicular to the contacting bodies' surfaces (known as the normal direction) and frictional stresses acting tangentially between the surfaces. Stresses were made visible using photoelasticity.Ĭontact mechanics is the study of the deformation of solids that touch each other at one or more points. Stresses in a contact area loaded simultaneously with a normal and a tangential force.
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Note that the content located within this wiki is contributed by the entire Steel Beasts community and that the content does not always reflect the opinions, views, or beliefs of eSim Games.Either navigate from this page, use the search feature on the left side of the screen, or go to the Index at the bottom of this page to view all articles or view articles by category. If you are searching for information in the SB Wiki, then the Main Page is where everything is linked together. If you would like to contribute to the SB Wiki, please refer to the community portal to see if there are any articles that need creation, collaboration, or maintenance.Any discrepancies between the manual and information in this wiki should err on the side of the manual unless annotated with a software version number superior to the most current manual version. As such the articles within serve to expand upon information found in the manual or cover topics not found in that document. The SB Wiki is intended as an adjunct to and not a replacement for the Steel Beasts Professional user manual.This wiki is for Steel Beasts and Steel Beasts Professional Personal Edition content providers who are interested in sharing knowledge on these simulations. This often leads to a higher load bearing capacity compared with traditional calculations. Using this method, the critical moment is determined with high precision. The critical bending moment from lateral torsional buckling is determined based on an energy method, which accounts for the load attack height, the sectional forces and the restrains. Simultaneously, PolyBeam will draw a graphical representation of the beam with the applied loads, calculate sectional forces and determine the utilization of the beam. Supports, loads and section properties are inserted with a minimum amount of user input. 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The suction ESD valve shall remain in an open position. 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No need to dispose of/clean up contaminated oil.2: Typical system components Advantages Seal gas system |
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