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EXPERIMENTAL FATIGUE STUDY of 6061 – T651 Aluminum ALLOY UNDER ALTERNATING ROTATING BENDING LOADING | ||
| DIYALA JOURNAL OF ENGINEERING SCIENCES | ||
| Article 1, Volume 6, Issue 4, 2013, Pages 1-13 PDF (0 K) | ||
| Author | ||
| Basim Hussein Abbas | ||
| Abstract | ||
| Fatigue under constant and variable cyclic stresses of 6061 – T651 aluminum alloy was studied at room temperature using pure bending as a loading test. An empirical model was derived from the experimental data of surface crack lengths for short and long fatigue cracks and the corresponding number of cycles. Variable cyclic stresses test was carried out using three specimens of the same material. The proposed model was applied to estimate the life of specimens and it showed that good results can be predicted (under – estimate the life of the specimens), and gave good indication for warning before failure happens. From this study it was concluded that there is no need to establish the S-N curve of the material. | ||
| Keywords | ||
| Aluminum Alloy; short and long fatigue cracks; crack growth model | ||
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