a large edge tool that cuts sheet metal by passing a blade through it (usually plural) large scissors with strong blades (physics) a deformation of an object in which parallel planes remain parallel but are shifted in a direction parallel to themselves; "the shear changed the quadrilateral into a parallelogram"
An action, resulting from applied forces, which tends to cause two contiguous parts of a body to slide relatively to each other in a direction parallel to their plane of contact; also called shearing stress, and tangential stress
Force that tends to divide an object along a plane parallel to the opposing stresses
Strain put on a compound between two surfaces when there is a slipping movement of the two surfaces parallel to and in opposite directions along the length of the joint, such as occurs when an aluminum channel expands to a greater length than a glass panel when both are subjected to the same pronounced rise in temperature This kind of strain tends to rub or knead the compound in opposite directions along the joint, as contrasted to other forms of strains which may try to pull the compound apart, by reason of the strain being at a right angle to the joint
Unless the term "velocity shear" is used, wind shear refers to differences in direction (directional shear) of the wind at different altitudes
stress involves the application of stress from two opposite directions causing portions of an object to move in parallel but opposite directions Wood is very resistant to shearing perpendicular to the grain and this property is not measured via a standard test Wood shears much easier in a direction parallel to the grain - consider a screw running perpendicular to the grain: it will shear out to the nearest end-grain if a sufficiently large force is applied to the board parallel to the grain Shear stress is measured in psi
To shear a sheep means to cut its wool off. In the Hebrides they shear their sheep later than anywhere else. + shearing shear·ing a display of sheep shearing
(wind) Variations in horizontal WIND SPEED due to the distance of the wind from the ground The higher the wind is above the ground, the faster it moves because of the reduced friction F - cisaillement S - gradiente transversal de la velocidad del viento
It is the rate of change over a short duration In wind shear, it can refer to the frequent change in wind speed within a short distance It can occur vertically or horizontally Directional shear is a frequent change in direction within a short distance, which can also occur vertically or horizontally When used in reference to Doppler radar, it describes the change in radial velocity over short distances horizontally