NON-PROBABILISTIC METHODS FOR NATURAL FREQUENCY AND BUCKLING LOAD OF COMPOSITE PLATE BASED ON THE EXPERIMENTAL DATA

作者：Wang Xiaojun^*; Elishakoff Isaac; Qiu Zhiping; Kou Changhe

来源：Mechanics Based Design of Structures and Machines, 2011, 39(1): 83-99.

DOI：10.1080/15397734.2011.537246

• Composite plate
• Ellipsoidal analysis
• Experimental data
• Hybrid theoretical-experimental method
• Interval analysis

A hybrid experimental-theoretical method is proposed to investigate the influence of unavoidable scatter in elastic moduli on the natural frequency and axial buckling load of composite plate using ellipsoidal and interval analyses. The elastic moduli for material T300-QY8911 are quantified by use of the smallest ellipsoid or smallest hyper-rectangle based on a set of real experimental data. Then the bounds of the natural frequency of axial buckling load of composite plate in virtue of the obtained ellipsoid and hyper-rectangle are evaluated. Numerical examples are provided to illustrate the feasibility and validity of the proposed method.

• 出版日期2011
• 单位北京航空航天大学