friction stress

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• Friction stir welding — (FSW) is a solid state joining process (meaning the metal is not melted during the process) and is used for applications where the original metal characteristics must remain unchanged as far as possible. This process is primarily used on aluminum …   Wikipedia

• Stress relaxation — describes how polymers relieve stress under constant strain. Because they are viscoelastic, polymers behave in a nonlinear, non Hookean fashion.Meyers and Chawla. Mechanical Behavior of Materials (1999) ISBN 0 13 262817 1] This nonlinearity is… …   Wikipedia

• Friction — For other uses, see Friction (disambiguation). Classical mechanics …   Wikipedia

• Stress (mechanics) — Continuum mechanics …   Wikipedia

• Stress fracture — Infobox Disease Name = Stress fracture Caption = DiseasesDB = 7842 ICD10 = ICD10|M|48|4|m|45, ICD10|M|84|3|m|80 ICD9 = ICD9|733.93, ICD9|733.94, ICD9|733.95 ICDO = OMIM = MedlinePlus = eMedicineSubj = radio eMedicineTopic = 783 eMedicine mult =… …   Wikipedia

• stress, seepage —    When water flows through a porous medium, force is transferred from the water to the medium by viscous friction. The force transferred to the medium is equal to the loss of hydraulic head. This force, called seepage force, is exerted in the… …   Lexicon of Cave and Karst Terminology

• Fanning friction factor — The Fanning friction factor is a dimensionless number used in fluid flow calculations. It is related to the Shear stress at the wall as:: au = frac{ f ho v^2}{2}where:* au is the shear stress at the wall *f is the Fanning friction factor of the… …   Wikipedia

• Coulomb stress transfer — is an interaction criterion that promises a deeper understanding of earthquake occurrence, and a better description of probabilistic hazard. When an earthquake reduces the average value of the shear stress on the fault that slipped, shear stress… …   Wikipedia

• Shear stress — SI symbol: τ SI unit: pascal Derivations from other quantities: τ = F / A …   Wikipedia

• Effective stress — Karl von Terzaghi first proposed the relationship for effective stress in 1936. [http://fbe.uwe.ac.uk/public/geocal/SoilMech/stresses/stresses.htm] For him, the term ‘effective’ meant the calculated stress that was effective in moving soil, or… …   Wikipedia

• Fault friction — describes the relation of friction to fault mechanics. Rock failure and associated earthquakes are very much a fractal operation (see Characteristic earthquakes). The process remains scale invariant down to the smallest crystal. Thus, the… …   Wikipedia