UYP

(redirected from Upper Yield Point)
AcronymDefinition
UYPUnlocking Your Potential (Edge Learning Institute; Tacoma, WA)
UYPUganda Young Positives (Kampala, Uganda)
UYPUpper Yield Point (engineering)
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References in periodicals archive ?
A clear upper yield point follows the elastic deformation at the beginning of the test.
The upper yield point appears after the elastic elongation and the plastic deformation occurs after the yielding.
The upper yield points follow the elastic deformation.
Through appropriate dimensioning of the sleeve, stresses up to the permissible upper yield point of the pipe to be repaired can be absorbed.
(i) AE commences shortly before the upper yield point and
(iii) During Luders-band propagation (lower yield point) the AE level (energy) is lower than that at the upper yield point. The pronounced feature of this stage is that the AE PSD has shifted notably to a low frequency region, which is reflected by lowering of the median frequency value.
detected just before the upper yield point (a) and right at the yield point (b) are of burst type.
For specimens aged under strains under which the stress relaxation behavior was linear viscoelastic, the stress value at the upper yield point increased over aging time, whereas for specimens aged under strains under which the stress relaxation behavior was nonlinear viscoelastic, the stress value at the upper yield point decreased for short aging period and then increased with increasing aging time.
There appeared an upper yield point on the stress--strain curves, and the stress value at the upper yield point increased with aging time and exceeds that of the annealed specimen.
The evolutions of stress value at the upper yield point are summarized in Fig.
For glassy linear polymers aged under strain and subsequently deformed, the value of stress at the upper yield point, [[tau].sub.y], increases with aging time [4, 5].
After that, the modulus decreased with increasing strain and the stress reached the upper yield point. Passing the upper yield point, stress decreased with increasing strain and then became almost constant, independently of strain.