ZugDrehbelastung

Zugdrehbelastung refers to a combined mechanical stress where a component is subjected to both axial tensile forces and torsional (twisting) forces simultaneously. This type of loading is encountered in various engineering applications, particularly in rotating machinery and structural components that experience bending and rotation. Examples include drive shafts, axles, and connecting rods.

The analysis of Zugdrehbelastung is crucial for ensuring the fatigue life and structural integrity of components. The interaction between tensile and torsional stresses can lead to complex failure mechanisms that are more severe than either stress acting alone. The maximum stress in a component under combined loading often occurs at the surface, making surface treatments and material selection important considerations.

Failure under Zugdrehbelastung can manifest as fatigue cracks that initiate and propagate under the cyclic application of these stresses. The fatigue life prediction for such components typically involves using stress concentration factors and fatigue strength reduction factors derived from experimental data and theoretical models. The von Mises stress criterion or the Goodman diagram are common methods used to evaluate the combined effect of tensile and torsional stresses on fatigue life. Understanding and accurately calculating Zugdrehbelastung is essential for safe and reliable design in many mechanical engineering fields.