Stress-Check
Thermoelastic Stress & Fatigue irNDT Solution
Stress-Check
MoviTHERM Stress-Check uses infrared non-destructive testing (irNDT) Thermoelastic Stress Analysis (TSA) to visualize stress measurement on metals, composites, plastics, glass, bone, concrete, and other materials. Stress-Check leverages the relationship between temperature and mechanical behavior laws with Lock-in Thermography (LiT) to measure the linear thermoelastic effect of a material under periodic, random, or cyclic loading condition. The system works with cooled and uncooled IR cameras with multiple lens configurations to meet various application requirements.
How does Stress-Check work?
Applying a cyclic compression load on a solid material will cause it to experience small and reversable temperature variations. Synchronizing an infrared camera to the load cycle allows using Lock-in techniques to capture surface temperatures and then convert temperature measurements to stress units on a pixel-by-pixel basis.
Resulting image output displays a stress distribution map and software allows for the extraction of spot stress measurement from any image pixel.
| Uncooled Infrared Camera Options | Cooled Infrared Camera Options | ||
|---|---|---|---|
| Available Resolutions | 336 x 256 or 640 x 512 | Available Resolutions | 640 x 512 or 1280 x 1024 |
| Image Rate | 30 Hz / 60 Hz | Image Rate | 60 Hz / 120 Hz / 181 Hz / 1000 Hz |
| Thermal Sensitivity | < 30 mK @ 30°C | Thermal Sensitivity | < 20 mK @ 30°C |
| PC | |||
| PC Type | Office PC, Industrial PC, Laptop (for mobile use) | ||
| Supported Operating Systems | Windows 10 Pro 64-bit | ||
| Excitation Source | |||
| Mechanical Excitation | Load Frame or Similar | ||
| IRX-Box | |||
| Modulation Box for Synchronization of all Hardware and Software Components | |||
| Enables Easy and Compact Measuring Setups | |||
| irNDT-Software | |||
| Evaluation Modules for Lock-in, Lock-in Online, Lock-in Ref. Online, TSA | |||
| Graphical User Interface for easy creation of customized solutions without programming skills | |||
| Integrated MS Excel Report Generator for easy set-up of inspection reports, export of inspection data to Matlab, sorting of inspection parameters in workspaces, and storing of result images include measuring parameters | |||
| Integrated VB Script-Engine for the creation of macros for solving automated inspection tasks | |||
| Result Viewer App – Allows for calibrated spatial defect measurements, including depth | |||
| Measuring and Analysis Properties | |||
| Parameters for the Excitation Source |
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| Parameters for the IR Camera | Recording Frequency, Integration Time, Temperature Range, Average Temperature, Detector Window, etc. | ||
| Parameters for the Analysis |
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Stress-Check Videos
Spring Steel Stress Inspection
A demonstration of MoviTHERM’s Stress-Check thermography solution for analyzing the performance of metal parts.
Automobile Steering Knuckle Stress Inspection
MoviTHERM’s Stress-Check thermography solution for analyzing the performance of metal, composite and ceramic parts.
