An apparatus for fatigue-testing of fibres

Abstract

An apparatus has been designed and constructed to determine the effects of applied oscillatory loads on fibres. It includes a piezoelectric transducer to register the oscillatory loads on the fibre. This, combined with a strain gauge bridge system and suitable amplification, provides signals directly proportional to the maximum and mean load experienced by the fibre under test. These signals actuate a servomechanism which limits the desired maximum load experienced by the fibre to a constant value.