Y

Y-coordinate
The value of the y-axis in a coordinate system.

Yaw
Platform rotation about the vertical axis.

Yaw Mean Period
The average time elapsing between successive occurrences of yaw, measured over the interval.

Yaw P P Max
The average of the highest one tenth observations of the yaw of the vessel measured over the interval.

Yaw P P Sig
The average of the highest one third observations of yaw of the vessel measured over the interval.

Yield
CEMENT: The number of barrels of a given centipoise slurry that can be made from a ton of the clay. Based on the yield, clays are classified as bentonite, high yield, low yield, etc.

Yield Point
The maximum elastic point a material can withstand without undergoing permanent deformation.

Yield Strength
The stress level measured at room temperature, expressed in pounds per square inch of loaded area, at which material plastically deforms and will not return to its original dimensions when the load is released.

Yield Stress
The yield stress of the material.

Yield Value
The yield value is the resistance to initial flow, or represents the stress required to start fluid movement. This resistance is due to electrical charges located on or near the surfaces of the particles. The values of the yield point and thixotropy, respectively, are measurements of the same fluid properties under dynamic and static states. The Bingham yield value, reported in lb/100 sq ft, is determined using the direct indicating viscometer by subtracting the plastic viscosity from the 300-rpm re

Yoke
A C-shaped piece of soft magnetic material, either solid or laminated, around which is wound a coil carrying the magnetizing current.

Yoke Magnetization
A magnetic field induced in a pipe, or in an area of a pipe, by means of an external electromagnet shaped like a yoke.