Determination of Material Properties of Plates from Modal ESPI Measurements

Gaul L, Willner K, Hurlebaus S (1999)

Publication Type: Conference contribution

Publication year: 1999

Journal

Proceedings of the International Modal Analysis Conference - IMAC Society for Experimental Mechanics

Publisher: Society for Experimental Mechanics

Edited Volumes: Proceedings of the International Modal Analysis Conference - IMAC

Pages Range: 1756–1762

Conference Proceedings Title: Proceedings of the International Modal Analysis Conference

Event location: XVII

Abstract

Fiber reinforced composites may have unknown non-isotropic properties due to the manufacturing process. Especially injection molded members tend to have orthotropic properties due to alignment of short fibers along streamlines. To obtain the stiffness parameters of such materials, a non-destructive testing method is developed. Electronic-Speckle-Pattern-Interferometry is used to determine the eigenfrequencies and eigenmodes of square sample plates and a simple analytical model of the free vibrating plate is used to identify dynamic stiffness parameters. The method is verified by testing plates with known orthotropy and by static bending tests.

Authors with CRIS profile

Kai Willner Professur für Strukturmechanik

Involved external institutions

Universität Stuttgart DE Germany (DE)

How to cite

APA:

Gaul, L., Willner, K., & Hurlebaus, S. (1999). Determination of Material Properties of Plates from Modal ESPI Measurements. In Proceedings of the International Modal Analysis Conference (pp. 1756–1762). XVII: Society for Experimental Mechanics.

MLA:

Gaul, L., Kai Willner, and S. Hurlebaus. "Determination of Material Properties of Plates from Modal ESPI Measurements." Proceedings of the IMAC, XVII Society for Experimental Mechanics, 1999. 1756–1762.

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