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Karteikarten

kinematics

Sophia Thain Englisch 23 Karten

Karten in diesem Stapel (23)

  1. 1Strain Definitiontensor (rank 2); tensor that is defined by 3 components, magnitude, direction of displacement gradient and the direction of plane of action, units = none, kinematic quantity
  2. 2Displacement Gradienthow displacement is changing with position
  3. 3Stress DefinitionTensor (rank 2); magnitude, direction of tractions and direction of plane of action
    - SI units; (pa) pascal 1Pa=1Nm-2, force, dynamic quantity
  4. 4RheologyStudy of how materials flow (deform), applies to solids.rheological laws describe the cause and effect relationship between dynamic quantity eg stress and kinematic one eg strain
  5. 5Rheological classes of interestelasticity, plasticity and viscosity
  6. 6ElasticitySeismology, tyope of stress induced by natural earthquakes or artificial(explosions) produces instant strain, propogates away from source
  7. 7PlasticityStructural geology, non reversible changes of shape (example=strain), deformation that takes place omce the applied stress crosses a threshold. relevent to solids and fluids
  8. 8ViscosityFluid dynamics- sedimentology and volcanology, gives sheer stress and produces a flow, deformation over time at a constant rate (strain rate), applies to fluids.
  9. 9Cobstitutiverelationship between stress and strain levsls
  10. 10Tensors9 valves not 3 like vectors
  11. 11seismic wave velocities depend onelastic properties and density of the rocks which the wave travels
  12. 12kinematics defiitionstudy of motion (position, acceleration, velocity)
  13. 13another word for straindeformation
  14. 14another word for yield stressyield strength
  15. 15fluids in geologywater- lakes, magma- lave flows, ice- glaciers, gases- hydrocarbons
  16. 16after some deformation and eventually resists deformationsolid
  17. 17material flowing indefinitelyfluid
  18. 18viscousonly apparent after long times in fluid
  19. 19viscosityif the thickness or stickness of a fluid or more technically its resistance to deformation
  20. 20kinematic viscosityno dynamic quantities involved, v=n/p, m2s-1
  21. 21viscosity in gasesinc as temp increases, molecular diffusion
  22. 22viscosity in liquidsfall as temp increases, depend on additional foces between molecules
  23. 23—

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Beschreibung
Karteikarten am kinematics, erstellt von Sophia Thain am 30/04/2018.
Erstellt von
Sophia Thain
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