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Elastic modulus print that page

An elastic modulus , or modulus of elasticity , is the mathematical description of an object or substance's tendency to be deformed elastically (i.e., non-permanently) when a force is applied to it. The elastic modulus of an object is defined as the slope of its stress-strain curve in

wikipedia.org | 2011/5/15 0:27:43

Young's modulus print that page

Young's modulus is a measure of the stiffness of an elastic material and is a quantity used to characterize materials. It is defined as the ratio of the uniaxial stress over the uniaxial strain in the range of stress in which Hooke's Law holds. [ 1 ] In solid mechanics , the slope of

wikipedia.org | 2011/8/18 14:08:14

Solid mechanics print that page

Solid mechanics The study of the physics of continuous materials with a defined rest shape. Elasticity Describes materials that return to their rest shape after an applied stress . Plasticity Describes materials that permanently deform after a sufficient applied stress. Rheology

wikipedia.org | 2010/10/2 1:36:58

Flexural modulus print that page


In mechanics , the flexural modulus is the ratio of stress to strain in flexural deformation, or the tendency for a material to bend. It is determined from the slope of a stress-strain curve produced by a flexural test (such as the ASTM D 790), and uses units of force per area. [ 1 ]

Acoustic rheometer print that page

It is well known that properties of viscoelastic fluid are characterised in shear rheology with a shear modulus G , which links shear stress T ij and shear strain S ij There is similar linear relationship in extensional rheology between extensional stress P , extensional strain

wikipedia.org | 2010/9/25 22:23:36

Linear elasticity print that page

components with respect to a rectangular Cartesian coordinate system, the governing equations of linear elasticity are: Equation of motion : where the subscript is a shorthand for and indicates . Engineering notation These are 3 independent equations with 6 independent

wikipedia.org | 2011/5/4 19:06:21

Strength of materials print that page

ultimate) strength. For example failure in buckling is dependent on material stiffness (Young's Modulus ). Contents 1 Types of loadings 2 Definitions 2.1 Stress terms 2.2 Strength terms 2.3 Strain (deformation) terms 3 Stress-strain relations 4 Design terms 4.1 Failure

wikipedia.org | 2011/8/19 7:26:53

Viscoelasticity print that page


viscoelastic materials exhibit rubber like behavior explained by the thermodynamic theory of polymer elasticity . In reality all materials deviate from Hooke's law in various ways, for example by exhibiting viscous-like as well as elastic characteristics. Viscoelastic materials are those

Yield (engineering) print that page

, so the stress-strain graph is a straight line, and the gradient will be equal to the elastic modulus of the material. Elastic limit (yield strength) Beyond the elastic limit, permanent deformation will occur. The lowest stress at which permanent deformation can be measured. This requires

wikipedia.org | 2011/9/2 7:00:31

Solid print that page


The branch of physics that deals with solids is called solid-state physics , and is the main branch of condensed matter physics (which also includes liquids). Materials science is primarily concerned with the physical and chemical properties of solids. Solid-state chemistry is especially