A measure of the rigidity of metal Ratio of stress, within proportional limit, to corresponding strain Specifically, the modulus obtained in tension or compression is Young's modulus, stretch modulus or modulus of extensibility; the modulus obtained in torsion or shear is modulus of rigidity, shear modulus or modulus of torsion; the modulus covering the ratio of the mean normal stress to the change in volume per unit volume is the bulk modulus The tangent modulus and secant modulus are not restricted within the proportional limit; the former is the slope of the stress-strain curve at a specified point; the latter is the slope of a line from the origin to a specified point on the stress-strain curve Also called elastic modulus and coefficient of elasticity
In tension it is the ration of stress to the corresponding strain within the limit of elasticity (Yield Point) of a material For carbon and low alloy steels any composition and treatment, the value is approximately 30,000,000 psi
An index of the stiffness of a material, applicable for example to the bending of a beam (see Young's Modulus); it is derived by measuring the elastic deformation of the material as it is placed under stress, and then dividing the stress by the deformation
or Young's modulus is the ratio of stress to strain Within the elastic range below the proportional limit, this ratio is a constant for a given piece of wood, making it useful in static bending tests for determining the relative stiffness of a board The modulus of elasticity is normally measured in pounds per square inch (psi) and is abbreviated as MOE or E Values for E relating to wood properties are commonly in terms of million psi; for simplicity, a board with a modulus of elasticity of 2,100,000 psi (2 1 x 106) may be reported as 2 1E
Same as Young Modulus this is how flexible a material is A high value tells us that the material is stiff whereas a low value tells us that the material is flexible
Is the slope of the straight-line portion of the stress-strain curve in the elastic range found by dividing the unit stress in ksi by the unit strain in in/in For all structural steels, the value is usually taken as 29,000 ksi This is also called Young's Modulus
A measure of a material's stiffness The constant relating stress (force) and strain (deformation) within the elastic range of a material The higher the modulus of elasticity, the stiffer the material Also called elastic modulus and Young's modulus
The ratio of stress to corresponding strain throughout the range where they are proportional As there are three kinds of stresses, so there are three kinds of moduli of elasticity for any material -- modulus in tension, in compression, and in shear
A ratio of stress to strain Used in engineering calculations to determine rigidity and deflections The higher the number, the more rigid the item will be for a given load The units are in pounds per square inch (psi)
Rate of change of strain as a function of stress The slope of the straight line portion of a stress-strain diagram Tangent modulus of elasticity is the slope of the stress-strain diagram at any point Secant modulus of elasticity is stress divided by strainat any given value of stress or strain It also is called stress-strain ratio
When a material is subjected to an external load it becomes distorted or strained With metals, provided the loading is not too great, they return to their original dimensions when the load is removed, i e they are elastic Within the limits of elasticity, the ratio of the linear stress to the linear strain is termed the modulus of elasticity or more commonly known as Young's Modulus
This is a measure of rigidity based on the ratio of stress to corresponding strain in an elastic material When a material is subjected to an external load it becomes distorted or strained With metals, provided the loading is not too great, they return to their original dimensions when the load is removed, i e they are elastic Within the limits of elasticity, the ratio of the linear stress to the linear strain is termed the modulus of elasticity or more commonly known as Young's Modulus