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EnglishA multiaxial high-cycle fatigue criterion for random loading, recently proposed by the authors [1], is here applied to some tests characterized by variable amplitude combined bending and torsion. The criterion, applicable to hard metals, considers an equivalent uniaxial stress defined through a nonlinear combination of stress components acting on the critical plane, whose orientation is correlated to a weighted mean position of the principal stress directions. A specific cycle counting method and a general damage model are then employed to process such an equivalent stress and to predict lifetime.
| Titolo: | Application of a criterion for lifetime prediction under multiaxial random loading |
| Autori: | |
| Data di pubblicazione: | 2004 |
| Abstract: | A multiaxial high-cycle fatigue criterion for random loading, recently proposed by the authors [1], is here applied to some tests characterized by variable amplitude combined bending and torsion. The criterion, applicable to hard metals, considers an equivalent uniaxial stress defined through a nonlinear combination of stress components acting on the critical plane, whose orientation is correlated to a weighted mean position of the principal stress directions. A specific cycle counting method and a general damage model are then employed to process such an equivalent stress and to predict lifetime. |
| Handle: | http://hdl.handle.net/11381/1443569 |
| ISBN: | 9783642126666 |
| Appare nelle tipologie: | 4.1b Atto convegno Volume |
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