Shear
Encyclopedia
Shear as a noun may refer to:
• Bias (textile)
Bias (textile)
The bias or cross-grain direction of a piece of woven fabric, usually referred to simply as "the bias" or "the cross-grain", is at 45 degrees to its warp and weft threads. Every piece of woven fabric has two biases, perpendicular to each other...

, in clothing design, fabric may be cut on the shear
• Cosmic shear, an effect of distortion of image of distant galaxies due to deflection of light by matter, as predicted by general relativity (see also gravitational lens
Gravitational lens
A gravitational lens refers to a distribution of matter between a distant source and an observer, that is capable of bending the light from the source, as it travels towards the observer...

)
• Shear (geology), a form of fault in rocks
• Simple shear
Simple shear
In fluid mechanics, simple shear is a special case of deformation where only one component of velocity vectors has a non-zero value:\ V_x=f\ V_y=V_z=0And the gradient of velocity is constant and perpendicular to the velocity itself:...

, a special case of deformation of a fluid
• Shear (fluid), in fluid dynamics, refers to the shear stresses and responses thereto in fluids
• Shear mapping, a particular type of mapping in linear algebra, also called transvection
• Shear rate, a gradient of velocity in a flowing material
• Shear stress
Shear stress
A shear stress, denoted \tau\, , is defined as the component of stress coplanar with a material cross section. Shear stress arises from the force vector component parallel to the cross section...

in physics, refers to a stress state that will cause shearing (see verb) when it exceeds a material's shear strength
• Shear matrix
Shear matrix
In mathematics, a shear matrix or transvection is an elementary matrix that represents the addition of a multiple of one row or column to another...

in geometry, a linear transformation shearing a space
• Shear strength
Shear strength
Shear strength in engineering is a term used to describe the strength of a material or component against the type of yield or structural failure where the material or component fails in shear. A shear load is a force that tends to produce a sliding failure on a material along a plane that is...

, shear strength
• Shear strength (soil)
Shear strength (soil)
Shear strength is a term used in soil mechanics to describe the magnitude of the shear stress that a soil can sustain. The shear resistance of soil is a result of friction and interlocking of particles, and possibly cementation or bonding at particle contacts. Due to interlocking, particulate...

• Shear line (locksmithing), where the inner cylinder ends and the outer cylinder begins in a cylinder lock
• Shear line (meteorology), an area of wind shear
• Wind shear
Wind shear
Wind shear, sometimes referred to as windshear or wind gradient, is a difference in wind speed and direction over a relatively short distance in the atmosphere...

, a difference in wind speed or direction between two wind currents in the atmosphere
• Shear wall
Shear wall
In structural engineering, a shear wall is a wall composed of braced panels to counter the effects of lateral load acting on a structure. Wind and earthquake loads are the most common loads braced wall lines are designed to counteract...

, a wall composed of braced panels to counter the effects of lateral load acting on a structure
• Shear forming
Shear forming
Shear forming, also referred as shear spinning, is similar to metal spinning. In shear spinning the area of the final piece is approximately equal to that of the flat sheet metal blank. The wall thickness is maintained by controlling the gap between the roller and the mandrel...

, different from conventional metal spinning in that a reduction of the wall thickness is induced
• Shear (sheet metal)
Shear (sheet metal)
-Bench shear:A bench shear, also known as a lever shear, is a bench mounted shear with a compound mechanism to increase the mechanical advantage. It is usually used for cutting rough shapes out of medium sized pieces of sheet metal, but cannot do delicate work. For the small shear, it mostly...

, various tools to shear sheet metal
• Cornelius Lott Shear
Cornelius Lott Shear
Cornelius Lott Shear was an American mycologist and plant pathologist. In 1908 he created the American Phytopathological Society. He was the first to describe the grass Bromus arizonicus.-References:...

, an American mycologist and plant pathologist identified by the author abbreviation Shear when citing a botanical name

Shear as a verb or shearing may refer to:
• Shearing (physics)
Shearing (physics)
Shearing in continuum mechanics refers to the occurrence of a shear strain, which is a deformation of a material substance in which parallel internal surfaces slide past one another. It is induced by a shear stress in the material...

, the deformation of a material substance in which parallel internal surfaces slide past one another
• Shearing (manufacturing), a metalworking process which cuts stock without the formation of chips or the use of burning or melting
• Shearing interferometer
Shearing Interferometer
The shearing interferometer is an extremely simple means to observe interference and to use this phenomenon to test the collimation of light beams, especially from laser sources which have a coherence length which is usually a lot longer than the thickness of the shear plate so that the basic...

, in optics, a simple and very common means to check the collimation of beams by observing interference
• Sheep shearing
Sheep shearing
Sheep shearing, shearing or clipping is the process by which the woollen fleece of a sheep is cut off. The person who removes the sheep's wool is called a shearer. Typically each adult sheep is shorn once each year...

, the process of removing the wool from a sheep
• Shearing in computer graphics, more commonly called page tearing
Page tearing
Screen tearing is a visual artifact in video where information from two or more different frames is shown in a display device in a single screen draw....

SHEAR as an acronym may refer to:
• Society for Historians of the Early American Republic
Society for Historians of the Early American Republic
The Society for Historians of the Early American Republic is an organization that was established in 1977 to study the history of the United States in the period between 1775 and 1861....

, dealing with United States History 1775-1861