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  2. Creep (deformation) - Wikipedia

    en.wikipedia.org/wiki/Creep_(deformation)

    Fortunately, creep doesn't occur suddenly in brittle materials as it does under tension and other forms of deformation, and it is an advantage for designers. Over time, creep strain develops in a material exposed to stress at the temperature of the application, and it depends on the duration of the exposure.

  3. Grain boundary sliding - Wikipedia

    en.wikipedia.org/wiki/Grain_boundary_sliding

    Grain boundary sliding (GBS) is a material deformation mechanism where grains slide against each other. This occurs in polycrystalline material under external stress at high homologous temperature (above ~0.4 [1]) and low strain rate and is intertwined with creep. Homologous temperature describes the operating temperature relative to the ...

  4. Business process management - Wikipedia

    en.wikipedia.org/wiki/Business_process_management

    The Workflow Management Coalition, [6] BPM.com [7] and several other sources [8] use the following definition: Business process management (BPM) is a discipline involving any combination of modeling, automation, execution, control, measurement and optimization of business activity flows, in support of enterprise goals, spanning systems, employees, customers and partners within and beyond the ...

  5. Creep and shrinkage of concrete - Wikipedia

    en.wikipedia.org/wiki/Creep_and_shrinkage_of...

    Concrete creep is essentially the sagging of concrete over time. Creep and shrinkage of concrete are two physical properties of concrete.The creep of concrete, which originates from the calcium silicate hydrates (C-S-H) in the hardened Portland cement paste (which is the binder of mineral aggregates), is fundamentally different from the creep of metals and polymers.

  6. Materials management - Wikipedia

    en.wikipedia.org/wiki/Materials_management

    Materials management often gets overlooked, even though successful projects are a result of a successful blend of labour, materials and equipment management. When materials are tracked efficiently project time can be optimized, costs can be saved and quality can be maximized. [3] There is a lack of efficient materials management in capital and ...

  7. Diffusion creep - Wikipedia

    en.wikipedia.org/wiki/Diffusion_creep

    In materials that were deformed under very high temperatures, lobate grain boundaries may be taken as evidence for diffusion creep. [7] Diffusion creep is a mechanism by which the volume of the crystals can increase. Larger grain sizes can be a sign that diffusion creep was more effective in a crystalline material.

  8. Larson–Miller relation - Wikipedia

    en.wikipedia.org/wiki/Larson–Miller_relation

    F.R. Larson and J. Miller proposed that creep rate could adequately be described by the Arrhenius type equation: = / Where r is the creep process rate, A is a constant, R is the universal gas constant, T is the absolute temperature, and is the activation energy for the creep process.

  9. Deformation (engineering) - Wikipedia

    en.wikipedia.org/wiki/Deformation_(engineering)

    By convention, the strain is set to the horizontal axis and stress is set to vertical axis. Note that for engineering purposes we often assume the cross-section area of the material does not change during the whole deformation process. This is not true since the actual area will decrease while deforming due to elastic and plastic deformation.