Services Offered
Through fatigue stress testing, we assess the fatigue life of materials or structures; plot material SN or EN curves to determine fatigue limits and strengths; verify the effectiveness of design and manufacturing process optimizations to prevent failures and improve safety; and identify structural fatigue weak points through post-fatigue testing flaw detection.
Service Scope
Aerospace, Automotive, Rail Transportation, Weaponry, Nuclear Power, and other industries
Testing Standards
ASTM E466 Standard Method for Axial Constant Amplitude Fatigue Testing of Metallic Materials
ASTM E606/E606M Standard Method for Strain-Controlled Fatigue Testing of Metallic Materials
ASTM E647 Standard Method for Testing Fatigue Crack Propagation Rate
ASTM E739 Statistical Analysis Method for Fatigue Test Data
ISO 12107 Statistical Analysis of Fatigue Test Data of Metallic Materials
ISO 1099 Axial Fatigue Testing of Metallic Materials
ISO 1143 Rotary Bending Fatigue Testing of Metallic Materials
ISO 3800 Axial Fatigue Testing of Threaded Fasteners
GB/T 15248 Axial Constant Amplitude Low Cyclic Fatigue Testing of Metallic Materials
GB/T 4337 Rotary Bending Fatigue Testing of Metallic Materials
GB/T 24176 Statistical Method for Fatigue Test Data of Metallic Materials
GB/T 3075 Axial Force Control Method for Fatigue Testing of Metallic Materials Testing Items
Axial stress fatigue life test of materials;
Bending stress fatigue life test of materials;
Tensile strain fatigue life test of materials;
Fatigue life test of structural components;
Axial stress fatigue life test of welded joints, including butt welding, lap welding, spot welding, cross welding, and other welding methods;
Bending stress fatigue life test of welded joints;
Vibration fatigue life test;
After fatigue testing, non-destructive testing can be performed using methods such as ultrasonic testing, magnetic particle testing, X-ray testing, and dye penetrant testing.
Relevant Qualifications
CNAS, CMA accreditation
Testing Cycle
5-20 working days
Service Background
Fatigue stress testing is an indispensable core component in engineering design and materials science. Its necessity lies in the entire chain from microscopic materials research to macroscopic engineering safety, providing full-lifecycle safety assurance for engineering systems from inception to decommissioning. It has shifted from passive verification to proactive design, becoming an indispensable core capability in the innovation chain.
Our Advantages
(1) GRGTEST is a nationally recognized professional third-party testing organization, providing one-stop services;
(2) GRGTEST Environmental and Reliability Testing Center has established 20 laboratories nationwide, possessing a professional multidisciplinary expert team and advanced testing equipment;
(3) GRGTEST Environmental and Reliability Laboratories hold CNAS and CMA qualifications, possess the most professional equipment and rich engineering experience, and can provide customers with technical consultation and rectification services, such as equipment life extension and reliability optimization;
(4) GRGTEST serves rail transit, aerospace, military, and automotive manufacturers and their suppliers, possessing extensive experience in environmental and reliability testing, and can meet various customer needs.
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