Sökning: "completely adhesive contact"

Hittade 5 avhandlingar innehållade orden completely adhesive contact.

  1. 1. Contact loading on stressed orthotropic half-plane : analytical and numerical studies

    Författare :Hans Bjarnehed; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; friction; generalized Winkler cushion; interface stress distributions; Timoshenko beam; slip; rigid punch; orthotropic half-plane; mechanical contact; frictionless contact; completely adhesive contact; FE-modelled half-plane;

    Sammanfattning : .... LÄS MER

  3. 2. On tool steel, surface preparation, contact geometry and wear in sheet metal forming

    Författare :Fredrik W. Lindvall; Jens Bergström; Staffan Jacobson; Karlstads universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wear; Galling; sheet metal; deep drawing; Tool steel; surface preparation; Friction; Materialteknik; Materials Engineering;

    Sammanfattning : In sheet metal forming operations the life length of the production equipment islargely dependent on the wear of the tools that are in direct contact with the sheet.One form of adhesive wear where some sheet material gets transferred to the tool, alsoknown as galling, is the most common cause of tool failure. LÄS MER

  4. 3. Grinding effects on surface integrity, flexural strength and contact damage resistance of coated hardmetals

    Författare :Jing Yang; Magnus Odén; Luis Llanes; Andrew Gant; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The tribological and mechanical behavior of coated tools depends not only on intrinsic properties of the deposited film but also on substrate surface and subsurface properties – such as topography and residual stress state – as well as on interface adhesion strength. It is particularly true in the case of coated tools based on WC-Co cemented carbides (backbone materials of the tool manufacturing industry, and simply referred to as hardmetals in practice) as substrates. LÄS MER

  5. 4. Reliability and applications of adhesives for microsystem packaging

    Författare :Zhimin Mo; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrically Conductive Adhesives; Finite Element Modeling; Reliability; Stress Analysis; Low Cycle Fatigue; Thermomechanical Fatigue; Encapsulation; Interconnection;

    Sammanfattning : The electronics industry is one of the most dynamic, fascinating and important industries. Polymeric adhesives are widely used in electronics packaging and play a critical role. LÄS MER

  7. 5. Monocrystalline-Silicon Based RF MEMS Devices

    Författare :Mikael Sterner; Joachim Oberhammer; Roberto Sorrentino; KTH; []
    Nyckelord :RF MEMS; radio frequency; microelectromechanical system; microsystem technology; monocrystalline silicon; switch; tuneable capacitor; high-impedace surface; phase shifter; rectangular waveguide; transmission line;

    Sammanfattning : This thesis presents novel radio-frequency microelectromechanical (RF MEMS) devices, for microwave and millimeter wave applications, designed for process robustness and operational reliability using monocrystalline silicon as structural material. Two families of RF MEMS devices are proposed. LÄS MER