Alternating Bending Fatigue Machine

The Alternating Bending Fatigue Machine is a further evolution of the popular Rotating fatigue Machine. All these parts are enclosed by a transparent safety guard, which ensures rotating components are kept away from the user but full view of parts and count is kept. Rather than rotating a specimen to fatigue failure, the Alternating Bending Fatigue Machine induces an alternating displacement to the free end of a cantilevered test specimen in order to fatigue fail the part. A heavy base plate houses the control box, motor, fluctuating components, test specimen and digital counter.

Experimental Capabilities:
Reading and working with nomograms
Cantilever test specimens
Bending fatigue of a cantilevered strip of metal or plastic in modes varying from alternating to fluctuating stresses
Fatigue

Rotational speeds can be either 5700 or 1425 rpm depending on gearing
Variable stress range
Includes dual micro switches to detect failure of the specimen and stop the motor
Specimens in the range of 100 mm in length, 5-10mm in width and up to 5mm in thickness in metal or plastic
To be a self-contained, bench-mounted machine for the imposition of an alternating displacement on the free end of a cantilever test specimen
Guarded machine with a digital readout of revolutions to failure
The apparatus is mounted on a heavy base plate with rubber mounting feet
Supplied with a rotating faceplate carrying an adjustable eccentric bearing driving a connecting rod attached to a cantilever
Load hanger and calibrated weights set to provide counterbalance and restrict horizontal displacement during fluctuations.