Research Article
A Nonlinear Fatigue Damage Model Based on Equivalent Transformation of Stress
Table 4
The comparison of the experimental results, Miner, Manson, and proposed model for GS61 material under two-block loading.
| | Experimental | Miner | Manson | Proposed model | Loading sequence | Stress amplitude | n1 | d1 | d2 | d2 | Dev/% | d2 | Dev/% | d2 | Dev/% |
| Low-high | 320–352 | 110,000 | 0.341 | 0.734 | 0.659 | 10.22 | 0.805 | 9.74 | 0.708 | 3.55 | 303–352 | 160,000 | 0.272 | 1.03 | 0.728 | 29.32 | 0.920 | 10.73 | 0.790 | 23.33 |
| High-low | 352–320 | 50,000 | 0.443 | 0.405 | 0.557 | 37.53 | 0.415 | 2.49 | 0.498 | 23.04 | 352–303 | 50,000 | 0.443 | 0.349 | 0.557 | 59.60 | 0.344 | 1.40 | 0.461 | 32.19 |
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