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Cumulative Fatigue Damage Under stepwise Tension-Compression Loading | ||
| International Journal of Mining and Geo-Engineering | ||
| مقاله 3، دوره 52، شماره 1، شهریور 2018، صفحه 17-21 اصل مقاله (899.53 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/ijmge.2018.65679 | ||
| نویسندگان | ||
| Hadi Haghgouei* 1؛ Hamid Hashemolhosseini1؛ Alireza Baghbanan2 | ||
| 1Isfahan University of Technology | ||
| 2Isfahan University of technology | ||
| چکیده | ||
| Rock structures are subjected to cyclic tension-compression loading due to a blasting, earthquake, traffic and injection-production in underground storage case. Therefore study the fatigue behavior of rock samples under this type of loading is required. In this study, the accumulated fatigue damage for a Green Onyx rock sample which consisted of only one mineral composition with two-step high-low sequences of loading levels was investigated under completely reversed loading condition. New apparatus based on the R.R. Moore fatigue test machine is designed to assess this type of loading. A comparison between the predicted behavior of Linear Damage Rule and experimental data was conducted and a new damage model was proposed based on the experimental observation. The results showed a good agreement between the proposed damage model and experimental data. | ||
| کلیدواژهها | ||
| Completely Reversed Loading؛ Cumulative Damage؛ Fatigue of rocks؛ Linear Damage Rule؛ Stress-Life method | ||
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آمار تعداد مشاهده مقاله: 769 تعداد دریافت فایل اصل مقاله: 1,057 |
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