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Physical effects like heat conduction, heat transfer and heat radiation can be simulated using FEM. A sequentially coupled thermal-stress analysis can be applied to highly stressed engine components, for example. Firstly, the temperature field is determined via thermal analysis. The stress/deformation response to the temperature field is found through a subsequent mechanical analysis. In this context constraints have an important effect on the resulting component stress. Examples of this kind of sequentially coupled thermal-stress analysis are: • Investigation of the stress-deformation behaviour of exhaust-gas systems
• Prestressing losses in clamping and interference fit assemblies due to temperature changes
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