Hybrid theoretical,experimental and numerical study of vibration and buckling of composite shells with scatter in elastic moduli |
| |
| Authors: | Xiaojun Wang Isaac Elishakoff Zhiping Qiu Changhe Kou |
| |
| Affiliation: | 1. Institute of Solid Mechanics, Beijing University of Aeronautics and Astronautics, No.37 Xueyuan Road, Haidian District, Beijing 100083, China;2. Department of Mechanical Engineering, Florida Atlantic University, Boca Raton FL 33431-0991, USA |
| |
| Abstract: | Hybrid theoretical, experimental and numerical method is proposed for free vibration and buckling of composite shell with unavoidable scatter in elastic moduli. Based on the Goggin’s measurement techniques, the elastic moduli for material T300-QY8911 are measured, and a set of experimental points are obtained. The measurements of elastic moduli are quantified by either (1) the smallest ellipsoid and (2) the smallest four-dimensional uncertainty hyper-rectangle. Then uncertainty propagation in vibration and buckling problems of composite shell by ellipsoidal analysis and interval analysis are, respectively, studied from the theoretical standpoint. Comparison between these analyses is performed numerically. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
