Relationship between fatigue life in the creep-fatigue region and stress-strain response
On the basis of mechanical tests and metallographic studies, strain-range partitioned lives were predicted by introducing stress--strain materials parameters into the universal slopes equation. The method was developed by correlating fatigue-damage mechanisms and deformation mechanisms operating at...
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| Veröffentlicht in: | Experimental mechanics 1990-09, Vol.30 (3), p.303-308 |
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| container_title | Experimental mechanics |
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| creator | BERKOVITS, A NADIV, S |
| description | On the basis of mechanical tests and metallographic studies, strain-range partitioned lives were predicted by introducing stress--strain materials parameters into the universal slopes equation. The method was developed by correlating fatigue-damage mechanisms and deformation mechanisms operating at elevated temperatures. Correlation between high-temperature fatigue and stress--strain properties for Ni-base superalloys (e.g. MAR-M200 + Hf, Udimet 700, AF2-1DA) and stainless steel (e.g. 316) substantiated the method. Parameters which must be evaluated for PP- and CC-life are the maximum stress achievable under entirely plastic and creep conditions, respectively, and corresponding inelastic strains, and the elastic modulus. For plasticity/creep interaction conditions (PC and CP) two more pairs of stress--strain parameters must be ascertained. Graphs, Photomicrographs. 16 ref.--AA |
| doi_str_mv | 10.1007/BF02322827 |
| format | Article |
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| source | Springer Nature - Complete Springer Journals |
| subjects | Exact sciences and technology Fracture mechanics (crack, fatigue, damage...) Fundamental areas of phenomenology (including applications) Physics Solid mechanics Structural and continuum mechanics |
| title | Relationship between fatigue life in the creep-fatigue region and stress-strain response |
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