## Tensile Strength

### From DT Online

**Tensile Strength** is a measure of how much a material can resist being stretched or pulled apart.

Data from which to calculate the **Tensile Strength** of material samples, can be obtained using the rig shown opposite. Such equipment is known as a **Tensometer** and industrial devices are used to measure how much a material sample stretches under **stress** to determine tensile properties of materials, such as its **Tensile Strength**.

Samples of thin line or wire may be gripped and stretched. The load applied is divided by the cross-sectional area of the test piece and this provides the value for the **Tensile Stress** being applied and any change in length divided by the original length will provide a value for **Tensile Strain**.

The maximum load the sample can withstand before it breaks gives the **Ultimate Tensile Strength (U.T.S.)** of the material.