A computer-controlled electro-hydraulic servo fatigue testing machine was customized for the 711 standard of China Shipbuilding Industry Corporation. China Shipbuilding Industry Corporation (CSIC for short) is a super large state-owned enterprise established by the reorganization of some enterprises and institutions of the former China State Shipbuilding Corporation. It is a state-authorized investment institution and asset management entity, mainly engaged in naval equipment and civilian use. The R&D and production of ships and supporting and non-ship equipment is the only Fortune 500 company in the Chinese shipbuilding industry, with total assets of 412.7 billion yuan and 150,000 employees.

The computer-controlled electro-hydraulic servo fatigue testing machine is mainly used to test the dynamic and static mechanical properties of various metal, non-metal materials, composite materials and other products. It can perform tensile, compression, bending, low-cycle and high-cycle fatigue, crack growth, and fracture mechanics tests under sine wave, triangle wave, square wave, trapezoidal wave, random wave, and combined waveform. Using the equipped high and low temperature environment test device, the environment simulation test under the corresponding temperature can be completed.

The operation of the testing machine is flexible and convenient. The lifting, locking, and sample clamping of the moving beam are all completed by button operation. It adopts advanced hydraulic servo drive technology for loading, high-precision dynamic load sensor and high-resolution magnetostrictive displacement sensor to measure the force of the specimen Value and displacement.

The fully digital measurement and control system realizes closed-loop control of force, displacement, and deformation. The test software works in the WINDOWS Chinese environment. With powerful data processing functions, test conditions and test results are automatically saved, displayed and printed. The test process is fully integrated into computer control. The test machine is an ideal cost-effective test system for scientific research institutes, metallurgical construction, national defense and military industry, colleges, machinery manufacturing, transportation and other industries.

The technical parameters are as follows:

   1. Maximum test force:

      Static: 50kN

      Dynamic: ±40kN

   2. Test force measurement range: 1～50kN (2～100%)

   3. Actuator piston stroke: ±75mm