| タイトル | Prediction of thermal cycling induced matrix cracking |
| 本文（外部サイト） | http://hdl.handle.net/2060/19930007591 |
| 著者（英） | Mcmanus, Hugh L. |
| 著者所属（英） | Massachusetts Inst. of Tech. |
| 発行日 | 1992-09-01 |
| 言語 | eng |
| 内容記述 | Thermal fatigue has been observed to cause matrix cracking in laminated composite materials. A method is presented to predict transverse matrix cracks in composite laminates subjected to cyclic thermal load. Shear lag stress approximations and a simple energy-based fracture criteria are used to predict crack densities as a function of temperature. Prediction of crack densities as a function of thermal cycling is accomplished by assuming that fatigue degrades the material's inherent resistance to cracking. The method is implemented as a computer program. A simple experiment provides data on progressive cracking of a laminate with decreasing temperature. Existing data on thermal fatigue is also used. Correlations of the analytical predictions to the data are very good. A parametric study using the analytical method is presented which provides insight into material behavior under cyclical thermal loads. |
| NASA分類 | COMPOSITE MATERIALS |
| レポートNO | 93N16780 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/124463 |
