Analytical Modeling of Circular Glare Laminated Plates under Lateral Indentation

Advanced Composites Letters

Article

George J. Tsamasphyros¹  George S. Bikakis¹ 

[1] Strength of Materials Laboratory, National Technical University of Athens, 9 Iroon Polytechniou, Zographou, GR 157 73, Athens, Greece;

关键词: GLARE;    load-indentation response;    tensile fracture;   

DOI  :  10.1177/096369350901800102

 received in 2008-12-16, accepted in 2009-04-07,  发布年份 2009

来源: Sage Journals

【 摘 要 】

In this paper analytical solutions are derived to predict the static response of thin circular clamped GLARE fibre-metal laminated plates under the action of a lateral hemispherical indentor. The load-indentation curve is calculated along with the first failure load and deflection due to glass-epoxy tensile fracture. The Ritz method is employed with one, two and three-parameter Ritz approximation functions. The derived formulas are applied to GLARE 2-2/1-0.3 and to GLARE 3-3/2-0.4 circular plates with various diameters. The results converge satisfactorily in all examined cases. The calculated load-indentation curve and the first failure agree well with published experimental data for the case of a GLARE 2-2/1-0.3 plate with a radius of 40 mm (failure load within 7% and failure deflection within 3%). The same load-indentation curves are also calculated using ANSYS and by comparison to FEM results the validity of the analytical model is further verified. No analytical solution of this problem is known to the authors.

【 授权许可】

Unknown   
© 2009 SAGE Publications Ltd

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