Thermo-Mechanical Fatigue (TMF) Testing
The system integrates the LF5105HT fatigue testing machine, TeraPro 500 controller, high-temperature dynamic extensometer, TMF temperature control module, cooling system, and DynamicExpert software — providing both standard and fully customized testing solutions.
Product Overview
Thermo-Mechanical Fatigue (TMF) refers to the fatigue failure phenomenon of materials under the superimposed effects of temperature cycling and mechanical load cycling. Its core characteristic is the synergistic effect of temperature and stress/strain, leading to complex deformation and damage mechanisms within the material (such as creep, oxidation, and microcrack propagation). Compared to traditional isothermal fatigue testing, TMF is closer to actual engineering environments (such as engine components and spacecraft hulls) and can more authentically evaluate the lifespan and reliability of materials.
The LSI Thermo-Mechanical Fatigue Testing System consists of the LF5105HT fatigue testing machine, TeraPro 500 controller, EXDH-120M-020M040A high-temperature dynamic extensometer, TMF temperature control module, cooling system, and DynamicExpert software. It is primarily aimed at understanding the failure mechanisms of given materials caused by temperature and mechanical loads under different conditions, providing standard and customized services for customers.
Features
—TeraPro 500 Controller：
Built on a DSP/X86 FPGA architecture, the TeraPro 500 delivers exceptional data processing performance with a closed-loop control rate of up to 10kHz. It supports both synchronous and asynchronous control modes, a signal frequency range of 0.001–500Hz, and up to 16 sensor input channels. TEDS sensor self-identification, TCP/IP, and USB communication interfaces are all standard.
— High-Temperature Dynamic Extensometer：
Designed for extreme environments, the extensometer operates up to 1200℃ with a displacement resolution of 0.2nm and an overall resolution better than 0.1μm. The patented flexible suspension support system floats with the specimen's center position, ensuring stable long-term peak-to-valley measurement without scratching the specimen surface.
— TMF Temperature Control & Cooling Module：
The induction heating system achieves a maximum temperature of 1200℃ with a closed-loop heating rate of 10℃/s. The air-cooling module with adjustable-flow nozzles provides a controlled cooling rate of 5℃/s, enabling precise phase angle control between thermal and mechanical cycles.
— DynamicExpert TMF Software Module：
Fully compliant with ASTM E2368 and ISO 12111 standards. The software integrates thermal stabilization, modulus measurement, thermal strain compensation, and zero-stress calibration modules, supporting both in-phase (IP) and out-of-phase (OP) TMF testing protocols.
Technical Parameters
Parameter | Specification |
Maximum Testing Temperature | 1200℃ |
Closed-Loop Heating Rate | 10℃/s |
Closed-Loop Cooling Rate | 5℃/s |
Induction Coil Specimen Diameter | 6–16mm (cylindrical) |
Thermocouple Compatibility | Type S, Type K, Type R |
Extensometer Gauge Length | 12.00mm |
Extensometer Measuring Range | +2.4mm / -1.2mm |
Extensometer Contact Force | 4N |
Extensometer Cooling Method | Air cooling |
Extensometer Accuracy Class | B-2 (ASTM E83) / 0.5 |
Controller Closed-Loop Rate | 10kHz (configurable) |
Controller Power Supply | 110/220V AC, 5kW |
Testing Standards | ASTM E2368, ISO 12111 |
Why Choose Us?
LSI delivers industry-leading TMF testing solutions that faithfully simulate real-world service environments. With high-precision closed-loop control, patented extensometer technology, and full compliance with international standards, our system provides the reliable, accurate data needed to qualify advanced materials and safeguard critical components. Customized test protocols and dedicated technical support are available to meet your specific requirements.
