標題: Stiffness identification of laminated composite shafts
作者: Kam, TY
Liu, CK
機械工程學系
Department of Mechanical Engineering
關鍵字: composite materials;finite element method;nondestructive evaluation;beam theory;structural engineering;optimization;experimental technique
公開日期: 1-九月-1998
摘要: Distributions of bending stiffness along the spans of laminated composite shafts are determined via a non-destructive evaluation approach. The finite element method formulated on the assumption of uniform bending stiffness within each element is used in the deflection analysis of the shafts. Differences between measured and theoretically predicted deflections at any two points on a shaft are used to construct an error function for deflection. The identification of bending stiffness is formulated as a minimization problem in which the elemental bending stiffnesses are determined to make the error function a global minimum. A global minimization technique and a bounding method for establishing side constraints are presented to solve the above minimization problem. Experiments are performed to study the feasibility and applications of the proposed method. (C) 1998 Elsevier Science Ltd. All rights reserved.
URI: http://hdl.handle.net/11536/32403
ISSN: 0020-7403
期刊: INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
Volume: 40
Issue: 9
起始頁: 927
結束頁: 936
顯示於類別:期刊論文


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  1. 000074420600008.pdf