This accessory for WP 310 makes it possible to carry out tensile experiments on flat or round specimens. The tensile strength is determined as an important characteristic of a material. Additionally, the fracture strain can be determined as a measure for the material’s toughness.
The accessory contains two clamping devices with two exchangeable grips for round and flat specimens. Both clamping devices are secured to the crossbars of WP 310. The wedge grips are easily opened with a lever. They remain locked in the open position.
In the tensile experiment, a uniaxial state of stress is produced in a standardised specimen. This state of stress is produced by an external load on the specimen in the longitudinal direction via a tensile force. Then a uniform normal stress distribution prevails in the test cross-section of the specimen.
In order to determine the strength of the material, the load on the specimen is slowly and steadily increased, until the specimen breaks.
A set of round specimens made of steel is included to carry out experiments.