Thermo-Mechanical Stress Analysis
Thermomechanical stress analysis calculates the stresses and deformations in weld zones during welding and cooling. It helps predict cracks and hardness problems.
Physical-Chemical Mechanism of Action
Thermo-mechanical stress analysis (TMSA) models time-dependent stresses and strains in metals during welding and cooling. It accounts for both thermal expansion and mechanical loads resulting from the welding process.
Metallurgical Relevance & Welding Risks
TMSA is crucial for predicting cracks and hardness problems in weld areas. Excessively high stresses can lead to hot cracks, while overly hard microstructures (e.g., martensite) have increased susceptibility to fracture.
Workshop Practice & Instructions
For TMSA, specialized software tools are used that require the welding process and material data as inputs. The results help optimize the welding process to avoid cracks and increase the service life of components.