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
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
The force divided by the percent elongation (divided by 100) to cause the elongation
Stress per unit strain, measured in psi The higher the number, the more rigid the item will be for a given load
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
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
An engineering term used to describe a material's ability to bend without losing its ability to return to its original physical properties
A measure of the stiffness or brittleness of a material The higher the number the more brittle the material
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)
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 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
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 the stiffness of a material Silicone rubbers have low moduli, whilst silicon and alumina have very high moduli
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
the ratio of stress to strain when deformation is totally elastic; also a measure of the stiffness of a material