| タイトル | Mode I fracture behavior of nonlinear materials |
| 著者（英） | Ko, W. L. |
| 著者所属（英） | NASA Flight Research Center |
| 発行日 | 1980-06-01 |
| 言語 | eng |
| 内容記述 | A finite element analysis is presented for the Mode I fracture behavior of cracked plates (stationary crack) made of different nonlinear materials (elastoplastic or elastic locking). The assumed stress-strain behavior of the nonlinear materials was piecewise linear. For each given 'stationary' crack size, the corresponding critical remote tensile stress was calculated based on the maximum crack-tip stress failure criterion. It was found that in the log-log plots of the critical remote stress versus critical crack length, the fracture data of the piecewise linear materials obey a 'stepwise-linear-inverse-square-root' fracture law. It is also shown how the fracture data of the piecewise linear materials can be fitted by proper piecewise graphical shifting of the classical 'inverse-square-root' fracture curve for the linearly elastic materials. |
| NASA分類 | STRUCTURAL MECHANICS |
| レポートNO | 80A39939 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/421327 |
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