A measure of the ratio of load (stress) applied to the resultant deformation of a material, such as elasticity or shear
The force required in pounds per square inch to stretch the test piece to a given elongation It expresses resistance to extension in the vulcanizates
A unit of measure For example, when measuring days, a modulus could be 24 for the number of hours in a day 75 hours would be divided by 24 to give 3 remainder 3, or 3 days and 3 hours See also modular arithmetic (cf Clocks and Modular Arithmetic Discussion)
an integer that can be divided without remainder into the difference between two other integers; "2 is a modulus of 5 and 9"
This is a measure that tries to explain how a fabric reacts when it tensioned and relaxed It is used to expain things like snow and wind loads, elasticity, memory, stretch, and shrinkage
a measure of the ability of a fibre to resist extension Normally measured as the ratio of the stress (or load) applied on a yarn or filament to the elongation (strain) resulting from the application of that stress
a quanity that expresses the degree to which a substance possesses a property, such as elasticity or stiffness; high modulus indicates a stiff fiber, while low modulus indicates a more elastic fiber MOMENT OF INERTIA (MOI): refers to the ability of a clubhead to resist twisting at impact on off-center hits; a low MOI will twist more than a high MOI at impact; oversize clubheads increase MOI and thus reduce twisting MULTI-COVER BALL: a golf ball which contains two covers
(1) A coefficient or numerical measure of some property (2) In polymers, modulus usually refers to one of several measurements of stiffness or resistance to deformation The use of the word without modifying terms may be confusing and such use should not be encouraged Modulus in polyurethane may be either static or dynamic; static moduli are subdivided into tangent, chord, and compounder's Compounder's modulus is always in tension, but all the others may be in shear, compression or tension Other terms used in connection with "modulus" are elasticity, rigidity, Young's tangent, and elongation (3) All elastic moduli in rubber (except compounder's) are ratios of stress to the strain produced by that stress, the stress, usually p s i
Any of several measures of °strain versus applied °stress See °shear modulus, °Young's modulus
Measure of the ratio of applied load (stress) to the resultant deformation of a material, such as elasticity of shear Can be low, intermediate, high of ultrahigh
Denotes the value of the stress ratio (load divided by area) to the strain (such as elongation) of a material It is a measure of the relative flexibility and resilience of a material (i e , rubber has a low modulus and steel a high one) Modulus is expressed in psi
Used to refer to a measure of some physical or mechanical property of a material The modulus is generally constant for any material, and can be used to calculate a material's response to external conditions, such as applied forces One common example is Young's Modulus, which expresses the elastic response of a meterial
Tensile stress measured at a particular strain and expressed in psi Normally defined at 50% or 100% strain
(physics) a coefficient that expresses how much of a specified property is possessed by a specified substance the absolute value of a complex number an integer that can be divided without remainder into the difference between two other integers; "2 is a modulus of 5 and 9
The measure of a fiber's stiffness or resistance to bending The higher the modulus, the stiffer the material
Derived from the Latin world meaning "small measure", modulus is the ratio of stress to strain in the linear region of the s-e curve
A quantity or coefficient, or constant, which expresses the measure of some specified force, property, or quality, as of elasticity, strength, efficiency, etc
{i} (Mathematics) number by which one can multiply logarithms of one system to obtain the logarithms of another system; number by which two quantities can be divided to yield the same remainder
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
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
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
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
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
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)
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
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
Used in both bending and torsion testing In bending, the modulus of rupture is the bending moment at fracture divided by the section modulus In torsion, modulus of rupture is the torque at fracture divided by the polar section modulus
Ultimate strength determined in a flexure or torsion test In a flexure test, modulus of rupture in bending is the maximum fiber stress at failure In a torsion test, modulus of rupture in torsion is the maximum shear stress in the extreme fiber of a circular member at failure Alternate terms are flexural strength and torsional strength
is the maximum load carrying capacity of a member It is generally used in tests of bending strength to quantify the stress required to cause failure It is reported in units of psi
Nominal stress at fracture in a bend test or torsion test In bending, the modulus of rupture is the bending moment at fracture divided by the section modulus In torsion, modulus of rupture is the torque at fracture divided by the polar section modulus
(Teknoloji) Dynamic modulus is the ratio of stress to strain under vibratory conditions (calculated from data obtained from either free or forced vibration tests, in shear, compression, or elongation). It is a property of viscoelasticity materials
Numerical constant that describes the elastic properties of a solid or fluid under pressure from all sides. It is the ratio of the tensile strength or compressive force per unit surface area to the change in volume per unit volume of the solid or fluid and thus is a measure of a substance's ability to resist deformation. Its units are newtons per square metre (N/m^2). Matter that is difficult to compress has a large bulk modulus; for example, steel has a bulk modulus of 1.6 10^11 N/m^2, three times that of glass (i.e., glass is three times more compressible than steel)
or elastic constant In materials science and physical metallurgy, any of various numbers that quantify the response of a material to elastic or springy deflection. When tensile stress is applied to a material, the resulting strain is determined by Young's modulus (see Thomas Young), a constant defined as the ratio of the stress in a body to the corresponding strain. It has dimensions of (force)/(length)^2 and is measured in units such as the pascal or newton per square meter (1 Pa = 1 N/m^2), dyne/cm^2, or lbs per sq in. (psi). See also elasticity