Cyclic stress creep test conversion apparatus for holding a constant stress condition

摘要

A cyclic creep tester maintains a constant condition regardless of the reduction of the specimen size. It consists of a DC power supply; a wave generator to control the period duty ratio and the increasing velocity of the stress; a power amplifier to drive the DC servo motor with the signal of the wave generator; a control switch to transfer the motor to manual or automatic mode; a load supplier to apply a constant repeating load to an Andrade-Chalmers arm; a switch to control the rotating direction of the servo motor; an elevator to move the load supplier.