| タイトル | Predicting The Compression Strength Of Impact-Damaged Sandwich Panels |
| 本文（外部サイト） | http://hdl.handle.net/2060/20050220587 |
| 著者（英） | Schaff, Jeffery; Ratcliffe, James; Jackson, Wade |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1990-01-11 |
| 言語 | eng |
| 内容記述 | The objective of this work was to develop a technique for predicting the residual compression strength of sandwich panels containing impact damage in one facesheet. The technique was tailored to predict the strength of specimens that exhibit a failure mode involving the formation of kink bands at locations of peak strain in the region of impact damage. Under continued compression loading, the kink bands propagate in a stable manner perpendicular to the applied load. When a critical kink-band length is reached, growth becomes unstable corresponding to panel failure. The analysis follows in two sections. The first section calculates the far-field stress required for stable kink-band growth and the second calculates that required for unstable growth. The residual strength prediction is made when the stress for stable growth becomes equal to that for unstable kink-band growth. Initial comparisons between analysis and experiment show good agreement. |
| NASA分類 | Structural Mechanics |
| 権利 | Copyright, Distribution under U.S. Government purpose rights |
