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织物夹具的蠕变变形及失效行为研究

摘要第5-7页
ABSTRACT第7-8页
1 Introduction第12-27页
    1.1 Background and significance第12-16页
    1.2 Related works on creep deformation based on FEM第16-19页
    1.3 Related works on different fixture failures behaviors第19-25页
        1.3.1 Mechanical analysis of the clip第19-20页
        1.3.2 Thermal deformation analysis第20-22页
        1.3.3 Fixtures failure modes第22-25页
    1.4 Research contents in this paper第25-27页
2 Mechanical contact pressure analysis on the fabric clip blade第27-41页
    2.1 Fabric specimens第27-29页
        2.1.1 Experimental Apparatus第27-28页
        2.1.2 Data Acquisition第28页
        2.1.3 Experimental Results第28-29页
    2.2 Numerical analysis of the fabric clip第29-34页
        2.2.1 Geometry and materials of the fabric clip第29-30页
        2.2.2 Mesh of the fabric’s clip第30-32页
        2.2.3 Contact Integration第32-33页
        2.2.4 Mechanical load and Boundary Condition第33-34页
    2.3 The contact pressure on different blades shapes第34-35页
    2.4 Blade contact pressure distribution under different pulling forces第35-38页
    2.5 Contact pressure distributions of the blade at different clip angle deflections第38-39页
    Summary第39-41页
3 Thermal deformation analysis on the fabric clip第41-53页
    3.1 Fundamenta l of heat transfer analysis第41-43页
        3.1.1 Heat transfer due to conduction第41-42页
        3.1.2 Heat transfer due to air convection第42-43页
    3.2 Material properties of the fabric clip第43-44页
    3.3 Meshing and element type of the clip第44页
    3.4 Mechanical load and Boundary condition第44-46页
        3.4.1 Coupling procedure第44-45页
        3.4.2 Boundary condition第45-46页
    3.5 Thermal deformation analysis on the fabric clip第46-51页
        3.5.1 The effect of the Temperature distribution on the fabric clip第46-47页
        3.5.2 The effect of the thermal stress distribution on the fabric clip第47-48页
        3.5.3 The effect of thermal deformation on the blade part第48-50页
        3.5.4 The effect of the thermal expansion on the blade part第50页
        3.5.5 The thermal deformation on the blade and the plate第50-51页
    Summary第51-53页
4 The creep deformation analysis on the clip body第53-66页
    4.1 Fundamenta l of creep deformation第53-55页
        4.1.1 Fundamenta l of creep behavior第53-55页
        4.1.2 Different creep analysis method第55页
    4.2 Material creep properties of the clip body第55-56页
    4.3 Creep process第56-58页
    4.4 The creep deformations on the clip body hole for different fabric pulling forces第58-59页
    4.5 Measurement and Comparison第59-63页
        4.5.1 CMM Globa l Performance testing machine第59-60页
        4.5.2 Experimental procedure第60-61页
        4.5.3 Measurements of dimensiona l changes of clip body hole第61-63页
    4.6 The effect of the blade clamping fastness due to the creep deformation on the clipbody hole第63-64页
    Summary第64-66页
5 Failure behavior and lifetime analysis on the fabric clip第66-71页
    5.1 Principle of the fabric clip failure第66页
    5.2 Different methods to improve the lifetime of the fabric clip第66-67页
    5.3 Estimating the lifetime of the fabric clip第67-70页
        5.3.1 Modeling of the clip failure第67-69页
        5.3.2 Estimation of the failure time第69-70页
    Summary第70-71页
Conclusion第71-73页
Further Research第73-74页
Acknowledgment第74-76页
Publications第76-77页
References第77-82页

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