stress-strain curve

The stress-strain curve is nonlinear, as can be seen in Figure 1.

The area under the stress-strain curve is the energy required to break (toughness).

A general stress-strain curve is shown in Figure 7.

The result is a stress-strain curve of the material's behavior under static loading.

The intersection of this line and the stress-strain curve is reported as the yield point.

This behaviour can differ from the traditional stress-strain curve of a cylinder, for example.

A typical stress-strain curve predicted by the Maxwell model, is shown in figure 13.3(a).

The three regimes of the stress-strain curve include elastic, plastic, and fracture.

During the propagation of the band the nominal stress-strain curve is flat.

A Stress-strain curve is plotted by the instrument and would look similar to the following:

For this type of steel, the yield point is defined by the level at which the stress-strain curve becomes horizontal.

It can be calculated by integrating the stress-strain curve from zero to the elastic limit.

The machine does these calculations as the force increases, so that the data points can be graphed into a stress-strain curve.

It is useful to distinguish among the several regimes in a typical stress-strain curve for a solid material.

This results in a hysteresis loop in the stress-strain curve.

These two stress-strain curves are typical for cold-formed steel sheet during tension test.

Breaking strength - The stress coordinate on the stress-strain curve at the point of rupture.

Ultimate strength refers to the point on the engineering stress-strain curve corresponding to the maximum stress.

However, the stress-strain curve can be calculated from the cross-sectional area and the original length of the specimen.

Predicted failure occurs when the stress distribution approximates the material's stress-strain curve.

The results for varying forces after the same creep time can be used to construct isochronal stress-strain curves.

Instead, the relationship between applied stress and strain is initially linear, but at a certain point the stress-strain curve will plateau.

This is usually determined for a given specimen by a tensile test, which charts the stress-strain curve (see image).

For the ligament the slope of the stress-strain curve becomes nearly constant in the prefailure phase.

The modulus is the slope of the initial linear region of the stress-strain curve.