ASTM E328 Stress Relaxation Test Equipment  

The stress relaxation of materials is an important characteristic when designing mechanical connectors, which must maintain permanent fastening. long-term failure of the connector may occur if stress relaxation is not considered. 

Load Application:

The ASTM E328 method involves preparing the specimen and applying a constant load to it using an universal testing machine. The decrease in stress within the specimens over time is monitored.

Measurement and Analysis:

The stress relaxation data is recorded as a function of time, strain, or temperature depending on the specific test objectives. The data is then analyzed to determine relaxation modulus, creep compliance, and relaxation time.

Safety and Best Practices in ASTM E328 Testing: 

Testing requires safe handling of materials and equipment especially in high-stress conditions use of PPE, maintenance of the test environment, and reqular maintenance. Proper documentation ensures compliance with industry regulations and traceability. 

Beijing United Test Co.,Ltd. export@unitedtest.com offer the ASTM E328 Stress Relaxation Test Equipment. Contact us now : export@unitedtest.com, unitedtest@hotmail.com