| タイトル | Nonlinear analysis for high-temperature multilayered fiber composite structures |
| 本文（外部サイト） | http://hdl.handle.net/2060/19850012963 |
| 著者（英） | Hopkins, D. A. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1984-08-01 |
| 言語 | eng |
| 内容記述 | A unique upward-integrated top-down-structured approach is presented for nonlinear analysis of high-temperature multilayered fiber composite structures. Based on this approach, a special purpose computer code was developed (nonlinear COBSTRAN) which is specifically tailored for the nonlinear analysis of tungsten-fiber-reinforced superalloy (TFRS) composite turbine blade/vane components of gas turbine engines. Special features of this computational capability include accounting of; micro- and macro-heterogeneity, nonlinear (stess-temperature-time dependent) and anisotropic material behavior, and fiber degradation. A demonstration problem is presented to mainfest the utility of the upward-integrated top-down-structured approach, in general, and to illustrate the present capability represented by the nonlinear COBSTRAN code. Preliminary results indicate that nonlinear COBSTRAN provides the means for relating the local nonlinear and anisotropic material behavior of the composite constituents to the global response of the turbine blade/vane structure. |
| NASA分類 | COMPOSITE MATERIALS |
| レポートNO | 85N21273
E-2242
NASA-TM-83754
NAS 1.15:83754 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/156945 |
