Fatigue Testing Machine Diagram

Rotatory bending machine the purpose of the rotating bar bending fatigue test is to determine the bending fatigue strength properties under rotating load.

Fatigue testing machine diagram.

Fatigue testing is a specialised form of mechanical testing that is performed by applying cyclic loading to a coupon or structure. Materials fatigue performance is commonly characterized by an s n curve also known as a wöhler curve this is often plotted with the cyclic stress s against the cycles to failure n on a logarithmic scale s n curves are derived from tests on samples of the material to be characterized often called coupons or specimens where a regular sinusoidal stress is applied by a testing machine. Fatigue tests are used on a range components from coupons through to full size test. Mt3012 e fatigue testing machine with pc interface and software.

Fatigue strength is thus of very great significance in machine design. Rotating beam fatigue testing systems were first developed in the mid 1800s by a german railroad engineer named august wöhler. Balaji fatigue testing machine capacity 200 kgcmthe machine is designed determining the fatigue properties of metals and alloys reverse bending cantilever type machine where the specimen is subjected to rotation at 2800 rpm with both ends held firmly between the gripping chucks with weights suspended through a lever. With the varying load to which most machines are exposed it is not the static break point but the fatigue limit which decides when a fracture occurs.

These tests are used either to generate fatigue life and crack growth data identify critical locations or demonstrate the safety of a structure that may be susceptible to fatigue.