A shear is a cutting implement that looks like a long pair of scissors. Also like scissors, this form of the noun is usually plural. You can cut metal, prune a tree, or cut up a chicken with shears. The verb shear also means to cause to break off or come apart with a cutting force.

Scissors A pair of scissors is a classic example to demonstrate shear force. When an object, for example, a piece of paper is placed between the two metal blades of a pair of scissors, it gets divided into two parts only because of the shear force.

To shear is to cut something or have something cut off. When you shave a sheep, this is an example of shear. An example of shear is when you have your hair cut off. To move through as if cutting.

A shear force is a force applied perpendicular to a surface, in opposition to an offset force acting in the opposite direction. This results in a shear strain. In simple terms, one part of the surface is pushed in one direction, while another part of the surface is pushed in the opposite direction.

Shear A force that causes one part of a material to slide past another. Place a deck of cards on a table. Invite a kid to push sideways on the top part of the deck so the cards “smear” sideways, demonstrating the sliding action of shear force.

The tension force is the force that is transmitted through a string, rope, cable or wire when it is pulled tight by forces acting from opposite ends. The tension force is directed along the length of the wire and pulls equally on the objects on the opposite ends of the wire.

The most common structural element that is subject to bending moments is the beam, which may bend when loaded at any point along its length. Failure can occur due to bending when the tensile stress exerted by a force is equivalent to or greater than the ultimate strength (or yield stress) of the element.

Stress is the force per unit area on a body that tends to cause it to change shape. Stress is a measure of the internal forces in a body between its particles. These internal forces are a reaction to the external forces applied on the body that cause it to separate, compress or slide.

According to the strain definition, it is defined as the amount of deformation experienced by the body in the direction of force applied, divided by initial dimensions of the body. The relation for deformation in terms of length of a solid is given below.

Strain Synonyms – WordHippo Thesaurus….What is another word for strain?

stress = (elastic modulus) × strain. As we can see from dimensional analysis of this relation, the elastic modulus has the same physical unit as stress because strain is dimensionless.

The stress-strain diagram for a steel rod is shown and can be described by the equation ε=0.20(1e-06)σ+0.20(1e-12)σ3 where s in kPa. Determine the yield strength assuming a 0.5% offset.

Various means like mechanical, optical, acoustical, pneumatic or electrical can be used to measure deformation (strain) of an object. Earlier mechanical devices such as extension meter (extensiometer) were used to measure strain by measuring the change in length and comparing it to the original length of the object.

Strain measurement also plays a vital role in Low-Cycle Fatigue testing that is used to determine the durability of materials subject to alternating strains during service (e.g. engine parts). Devices designed to measure strain are referred to as extensometers.

A Strain gauge (sometimes refered to as a Strain gage) is a sensor whose resistance varies with applied force; It converts force, pressure, tension, weight, etc., into a change in electrical resistance which can then be measured. When external forces are applied to a stationary object, stress and strain are the result.