the spatial deformation produced by stress.
In relation to physical forces, a measure of the deformation of a tissue. Thus, strain equates to the change in a dimension divided by the original dimension.
deformation of an object in response to an applied force (stress).
An irreversible condition beyond stress in which plant mortality occurs.
The ratio between the change in dimension experienced by an object that has been subjected to stress, and the original dimensions of the object. The formula for strain is d/ o, where d is the change in length and o the original length. Hooke's law, as well as the various modu li of elasticity, relates strain to stress.
The change in the shape or volume of a rock that results from stress.
Strain. A measure of the relative change in the size or shape of a body. Linear strain is the change per unit length of a linear dimension. True strain (or natural strain) is the natural logarithm of the ratio of the length at the moment of observation to the original gage length. Conventional strain is the linear strain over the original gage length. Shearing strain (or shear strain) is the change in angle (expressed in radians) between two lines originally in right angles. Deformation produced by a stress is expressed as the change per unit of original dimension or as angular displacement in the case of shear. When used alone, the term usually refers to the linear strain in the direction of the applied stress.
Physical Properties and Testing Unit change due to force in size of body relative to its original size.
Is the natural logarithm of the quotient from deformed length and original length. It describes large plastic changes of the shape. For that it is better suitable than the expansion related to the original length.
Local unit volumetric or distortional deformation experienced by a nonrigid body or structure subjected to external force.
Change per unit length in a linear dimension of a part or specimen, usually expressed in % Strain, as used with most mechanical tests, is based on original length of the specimen. True or natural strain is based on instantaneous length, and is equal to: ln × l lo , where l is instantaneous length and lo is original length of the specimen. Shear strain is the change in angle between two lines originally at right angles.
The deformation of a body under an applied load.
The change in length per nit of length in a given direction.
the change in a materials length divided by its original length. It is caused by an applied stress.
The change in unit length or angle in a material subjected to load.
Deformation of the shape or size of a body as a result of the stress applied to it.
The deformation produced by a stress divided by the original dimension.
pressure or stress or force on a particular point or process Ideally, there should be no strain on the solder joints. You could strain a muscle if you insist on doing that exercise.
when a material is subject to stress, the strain is the deformation produced; for example, longitudinal compressional strain is the change in length of the sample divided by the original length of the sample.
Mechanical deformation within a material as the result of stress.
As defined by Kathy Kolbe, conative stress resulting from a person's unrealistic self-expectations of how he or she needs to perform.
(physics) deformation of a physical body under the action of applied forces
difficulty that causes worry or emotional tension; "she endured the stresses and strains of life"; "he presided over the economy during the period of the greatest stress and danger"- R.J.Samuelson
(psychology) nervousness resulting from mental stress; "his responsibilities were a constant strain"; "the mental strain of staying alert hour after hour was too much for him"
alter the shape of (something) by stress; "His body was deformed by leprosy"
a change in size, shape, or volume of a material
An osteopathic technique which changes the interaction between dysfunctional vertebrae and reduces fascial tension and restores joint mobility.
Change in length of a sample in the direction of an applied stress.
to wear out or stress beyond normal ranges, causing micro tears.
deformation of a structure or material due to application of stress (a force)
Elastic deformation resulting from stress.
The natural logarithm of the ratio of instantaneous gauge length to original gauge length of a specimen being deformed by an unaxial force.
Deformation or displacement of a particulate solid under shear.
the change of dimensions of matter in response to stress.
The geometrical deformation or change in shape of a body. The change in an angle, length, area, or volume divided by the original value.
The extension or compression of a piece of material which is or has been under stress.
the amount of deformation a sample undergoes when one puts it under stress. Strain can be elongation, bending, compression, or any other type of deformation. (see: elongation, stress)
The change in shape that a body undergoes when acted upon by an external force
The unit of change in the size or shape of a body due to force. Also known as nominal strain.
The change in length per unit length in a given direction. See Tension and Compression.
the deformation produced by a tensile or compressive stress; measured by the change, i.e. extension or contraction, per unit length
The intensity of deformation at a point in an object. See normal strain and shear strain.
The deformation of a gasket specimen under the action of applied force or stress
The elastic deformation of a material as a result of stress.
When a material is distorted by forces acting on it, it is said to be strained. Strain is the ratio of change in dimension to original dimension.
A change in the volume or shape of a rock mass in response to stress.
The ratio of change-in-length to length. Used in describing the effects of applied stresses or applied electric fields.
The amount of deformation the material experiences per unit of original length in response to stress.
A measure of the amount of deformation produced in a substance when it is stressed.
The deformation per unit length measured in the direction of the stress caused by forces acting on a member. Not the same as deflection.
The physical deformation, deflection, or change in length resulting from stress (force per unit area).
A measure of the change in size or shape of a body under stress, referred to its original size or shape. Tensile or compressive strain is the change, due to force, per unity of length in an original linear dimension in the direction of the force. It is usually measured as the change (in inches) per inch of length.
The elongation per unit length of a material.
In optics, the mechanical tension, compression or shear in optical glass due to internal stress caused by improper cooling or annealing during manufacture of the glass or the subsequent working molded parts. Learn more about Strain...
The change in shape of an object in response to deformation (i.e., as a result of the application of a stress).
the unit change, due to force, in the size or shape of a body referred to its original size or shape.
Disorder and disruption of a system due to operation beyond the limits of stress.
change in the shape or volume of a material, often recorded in three-dimensions. Click here to learn more
The ratio of the change in length to the initial unstressed reference length.
The ratio between the absolute displacement of a reference point within a body to a characteristic length of the body.
The amount of material deformation when stressed.
The deformation of an object caused by a force acting upon it. Compressive strain is the shortening of an object in compression. Tensile strain is the enlongation of an object in tension. Shearing strain is a lateral deformation caused by a force which tends to move part of an object more than another. Compare to stress.
(1) A physical unit of measurement used to define the directional change of length per unit length in a material; (2) The dimensionless expression for the elongation of a material under stress. Strain is expressed as the ratio of elongation per unit length.
Small changes in length and volume associated with deformation of the earth by tectonic stresses or by the passage of seismic waves.
The amount of elongation, force, or compression that occurs in a metal at a given level of stress. Generally in terms of inches elongation per inch of material.
the ratio of the amount of deformation to the length being deformed caused by the application of a load on a piece of material.
In tensile testing, the ratio of the elongation to the gauge length of the test specimen, that is, the change in length per unit of original length.
The change in an object's dimensions, resulting from the application of force.
The change per unit length in a linear dimension of a specimen, usually expressed in percent (%). In most mechanical tests, strain is based on the original length of the specimen.
A measure of the extent to which a body is deformed when it is subjected to a stress.
Change in the shape or volume of a body as the result of stress.
The change in length per unit length of a body resulting from an applied force. Within the elastic limit strain is proportional to stress. Strength The largest stress that an object can carry without breaking. Common usage is the stress at failure.
The percentage of elongation or compression of a material or portion of a material caused by an applied force.
The deformation produced by a stress as compared to the original shape.
A measure of the change in size or shape of a body, relative to its original size or shape. (Direct strain is the ratio of change in length to original length; shear strain is the angle of distortion; volumetric strain is the ratio of change in volume to original volume.)
A force leading to deformation of a material.
Deformation per specified area unit of material due to applied force (stress).
The deformation resulting from a stress, measured by the ratio of the change to the total value of the dimension in which the change occurred.
The amount of elongation or compression that occurs in a metal at a given stress or load produced by an outside force. Generally in terms of inches elongation per inch of material. Strains may be either positive (elongation) or negative (compression), and may be either elastic (recoverable) or plastic (permanent).
A normalized measure of deformation. Strains may be either positive (elongation) or negative (compression), and may be either elastic (recoverable) or plastic (permanent).” (GM Die Dictionary, 1995, p. 58).
1. To stretch tightly beyond normal limits. 2. A change in form or size resulting from force or stress.