A Method for Damage Evaluation of Laminated Composite Materials by Using Model Updating Techniques in Dynamics

[+] Author and Article Information
Jesiel Cunha

Federal University of Uberlândia, Department of Physical Sciences, Campus Santa M̂nica, Uberlândia, MG, Brazil

Dominique Perreux

University of Franche Comté-Applied Mechanics Laboratory R. Chaléat, Besançon, France

J. Eng. Mater. Technol 120(3), 256-261 (Jul 01, 1998) (6 pages) doi:10.1115/1.2812352 History: Received July 25, 1997; Revised February 09, 1998; Online November 27, 2007


A method for damage identification in composite materials by model updating techniques in dynamics has been proposed. The modeling and the general aspects of the damage in composite materials have been briefly described. Damage is evaluated by using the sensitivity method (modal approach) which is employed to identify the stiffness properties of laminated composite tubes. Stiffness properties of extension, bending, twisting, and transverse shear effects have been identified from a single test. This will allow further damage quantification. Results obtained by numerical simulation show the feasibility of the proposed methodology.

Copyright © 1998 by The American Society of Mechanical Engineers
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