![Tensile stress Blue and white abstract painting](/content/dam/images/science/materials-science-engineering/websites/2021-12-materials-online-tutorials/2021-12-tensile-test-machine-hero.cropimg.width=335.crop=video.jpg)
The tensile test piece is mounted into the grips of the tensile test machine. The grips are pulled apart hydraulically at a constant rate. The applied load is measured by a load cell and the extension by an extensometer.
As the test is normally destructive, the test piece is permanently deformed and usually fractured in the test.