Fatigue fracture performance test
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        We possess dozens of the servo-hydraulic fatigue and high-frequency fatigue testing machines, and high temperature oven, strain gauges, extensometer, high/low temperature environmental chambers and various types of fixtures are equipped. Thus large plates, cylindrical samples and complex structural parts can be installed and tested on the machines. In addition, fatigue test on metals, non-metals and composite materials can be carried out under various environment, such as room/high/low temperature (-180 to 1200) and corrosive environment.

The servo-hydraulic fatigue testing machine is equipped with the extensometer, which is capable of recording data automatically. And the fatigue test can be performed on specimens with various geometries when specific fixtures are installed, for example SE (B), M (T) and C (T) specimen etc.

Fracture toughness of metallic materials are measurable and curves of KIC, KIV, KR, KC-B, KIE, JIC and JR can be obtained. 

In addition, with the help of applying constant K, drop K methods, the value of ΔKth and da/dN for crack propagation can be measured

      Testing Index (not limited)

      1)fatigue(in various corrosive environment and temperature conditions)

                    • high cycle fatigue

                    • low cycle fatigue

                    • HCF-LCF interaction

                    • corrosion fatigue

                    • spectrum loading fatigue 

                    • creep fatigue 

                    • fretting fatigue 

                    • thermos-mechanical fatigue 

                    • multiaxial fatigue

      2)advanced joint and structural fatigue 

       • weldingrivetingboltingadhesive, etc.

                    • element 

                    • simulation components fatigue 

                    • DFR of materials and structures







      3)crack propagation (in various corrosive environment and temperature conditions) 

                    • Fatigue crack growth rate 

                    • Spectrum loading growth rate

                    • Mixed mode crack growth rate 

                    • Crack propagation at high temperature with holding time

                    • Crack propagation at high temperature

                    • crack growth rate of laminates

                    • Three-dimensional (including short crack crack) crack growth rate



       4)Fracture toughness 

                    • Plane strain fracture toughness 

                    • Plane stress fracture toughness 

                    • Ductile fracture toughness 

                • fracture toughness on the surface of plates