Experimental and computational evaluation of rolling bearing steel durability

4th International Conference Recent Trends in Structural Materials

Nohál, L.^1 ; Vaculka, M.^1

Jedovnická 8, EU, Brno

628 00, Czech Republic^1

关键词: Acoustic emission method;    Computational evaluation;    Fatigue life prediction;    Multi-axial fatigue criterion;    Rolling bearing steel;    Rolling contact fatigue;    Rolling Element Bearing;    Stress-strain analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/179/1/012054/pdf
DOI  :  10.1088/1757-899X/179/1/012054

来源: IOP

【 摘 要 】

Rolling element bearings are widely-used machine components and their failure can result in damage to the whole machine. A bearing failure can be caused by many factors. In most cases it is damage on the raceway surface as a result of rolling contact fatigue (RCF). This article describes the fatigue analysis consists of determining service-life of a roller bearing using a stress-strain analysis with finite element method and subsequent numeric calculation using software fe-safe with application of multiaxial fatigue criterion. These theoretical results are compared to the experiments carried out on AXMAT test-rig with more accurate defect detection using acoustic emission method. Numerical service-life calculation can be applied as tool for fatigue life prediction of full scale bearing with sufficient correlation with experimental results.