Impact of nonlinear laminated composite plates
- National Chiao Tung Univ., Hsin-Chu (Taiwan, Province of China). Dept. of Mechanical Engineering
Laminated composite materials have many superior properties which have made them become an important engineering material for industrial applications. Many energy related structures or components such as off-shore drilling platforms, turban blades, pressure vessels, pipes, etc., which are usually modelled as plate structures in analysis, have been designed using composite materials. In general, these structures or components, which require high reliability, are operated in severe environments and susceptible to low-speed impact by foreign objects. Here, the dynamic response of nonlinear laminated composite plates subject to low-speed impact is studied using the von Karman-Mindin plate theory. The equations of motion of the impactor and the plate are derived via a virtual work approach. The contact force between the impactor and the plate is calculated by using an experimentally established contact law. The accuracy of the method for impact analysis is verified by experimental results as well as the theoretical results available in the literature. The discrepancies between the results predicted by the linear and nonlinear plate theories are investigated. Optimal layups of laminates for minimizing dynamic response via the present method and a global optimization technique are presented.
- OSTI ID:
- 376026
- Report Number(s):
- CONF-960154-; ISBN 0-9648731-8-4; TRN: IM9642%%114
- Resource Relation:
- Conference: Energy Week `96: American Society of Mechanical Engineers and American Petroleum Institute energy week conference and exhibition, Houston, TX (United States), 21 Jan - 2 Feb 1996; Other Information: PBD: 1996; Related Information: Is Part Of Energy week `96: Conference papers. Book 5: Composite materials design and analysis; Surana, K.S. [ed.] [Univ. of Kansas, Lawrence, KS (United States)]; Kozik, T.J. [ed.] [Texas A and M Univ., College Station, TX (United States)]; PB: 498 p.
- Country of Publication:
- United States
- Language:
- English
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