Influence of Combined Mean Stresses on Lifetime under High-Cycle Fatigue

• DOI: 10.4028/www.scientific.net/amm.732.107
• Publication Date: 2015-02-16T14:47:50Z
• Authors: Jaromír Janoušek; Miroslav Balda; Michal Chocholoušek
• Keywords: 0203 mechanical engineering; 13. Climate action; 0202 electrical engineering, electronic engineering, information engineering; 02 engineering and technology

This study builds on experiments with different combinations of tension and torsion pre-stresses which were published in [1]. The results were particularized by new tests for combined pre-stresses in normal and shear components. The ratio between normal and shear pre-stresses was 3:2 in agreement with the coefficient kc. The same material structural low carbon ČSN 41 1523.1 steel after normalization annealing was used for specimens. The results were compiled and displayed in a three-dimensional Haigh diagram with normalized coordinates and interlaid by corresponding terminal lines.