Stress–strain Curve

Stress–strain Curve

The relationship between the stress and strain that a particular material displays is known as that material's Stress-Strain curve. It is unique for each material and is found by recording the amount of deformation (strain) at distinct intervals of tensile or compressive loading (stress). These curves reveal many of the properties of a material (including data to establish the Modulus of Elasticity, E).

Stress-strain curves of various materials vary widely, and different tensile tests conducted on the same material yield different results, depending upon the temperature of the specimen and the speed of the loading. It is possible, however, to distinguish some common characteristics among the stress-strain curves of various groups of materials and, on this basis, to divide materials into two broad categories; namely, the ductile materials and the brittle materials.

Read more about Stress–strain Curve:  Tensile Stress, Ductile Materials, Brittle Materials

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Stress–strain Curve - Brittle Materials
... A typical stress-strain curve is shown in Fig.3 ... A typical stress strain curve for a brittle material will be linear ...

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