Fatigue Analysis of a Welded Assembly using ANSYS Workbench Environment

Fatigue analysis of welded joints often requires the handling of large structures, since typical weld seams are small details in large assemblies. FE models deduced from the global structure require idealization and are not well suited for fatigue concepts that are based on the local stress state. The model of the global structure is used to locate hot spots and to transfer the applied loads to a local deformation. The analysis concepts proposed by the IIW and other organizations require a very detailed and specific representation of the welded joints. ANSYS Workbench preprocessing capabilities combined with ANSYS submodeling technology allow demonstrating a fast and reliable workflow. The ANSYS Workbench Fatigue tool performs the high cycle fatigue life calculation.
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