Thermal stress analysis

Make mechanical tensions visible — contactless and through imaging.

Thermal stress analysis makes it possible to visualize stress distributions in components under dynamic load — non-destructively, precisely and synchronously with mechanical stress.

Thermische Spannungsanalyse Funktionsweise

How it works - explained in a nutshell

Thermal stress analysis utilizes the thermoelastic effect: under cyclic mechanical loading, minimal temperature changes occur within the material. These are captured using high-resolution infrared cameras and enable real-time visualization of stress distributions and crack propagation. The method is non-contact, non-destructive, and can be precisely synchronized with mechanical test rigs.

Why Thermal Stress Analysis?

Thermal Stress Analysis (TSA) enables the visualization of stress distributions in components under dynamic loading. It is used to validate simulations, detect crack formation, and understand the failure behavior of materials.

Typical Applications:

  • Detection of residual stresses after manufacturing processes (e.g., welding, forming)
  • Investigation of components under load
  • Validation of FEM simulation
  • Quality control of materials with anisotropic behavior
  • Research & development of new materials or composites

Thermographic Solution

TSA is based on detecting minimal temperature changes caused by mechanical stresses within the material.

Using lock-in thermography, these changes are precisely detected and visualized. Under cyclic loading of a component, elastic deformations lead to minimal temperature changes (thermoelastic effect). These are captured by a synchronized infrared camera. The resulting data enables the visualization of stress distributions and the identification of crack formation or material fatigue.

Software Solution for Thermal Stress Analysis

For the efficient implementation of thermal stress analysis, the software solution DisplayImg TSAvis offers a powerful platform. It enables precise measurement and evaluation of stresses and dissipation in real time – ideal for research, development, and quality assurance.

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FAQ

Our frequently asked questions — answered quickly and easily.

All questions/answers

For which materials is thermography suitable?

How is synchronization with mechanical test stands implemented?

How sensitive is TSA to temperature changes?

Is the method suitable for inline integration into production processes?

Which materials can be investigated using TSA?