| タイトル | Continuum Fatigue Damage Modeling for Use in Life Extending Control |
| 本文（外部サイト） | http://hdl.handle.net/2060/19950004445 |
| 著者（英） | Lorenzo, Carl F. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1994-08-01 |
| 言語 | eng |
| 内容記述 | This paper develops a simplified continuum (continuous wrp to time, stress, etc.) fatigue damage model for use in Life Extending Controls (LEC) studies. The work is based on zero mean stress local strain cyclic damage modeling. New nonlinear explicit equation forms of cyclic damage in terms of stress amplitude are derived to facilitate the continuum modeling. Stress based continuum models are derived. Extension to plastic strain-strain rate models are also presented. Application of these models to LEC applications is considered. Progress toward a nonzero mean stress based continuum model is presented. Also, new nonlinear explicit equation forms in terms of stress amplitude are also derived for this case. |
| NASA分類 | STRUCTURAL MECHANICS |
| レポートNO | 95N10857
NASA-TM-106691
E-8837
NAS 1.15:106691 |
| 権利 | No Copyright |
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