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Strength of Foam for Wing Cores?

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Old 06-11-2004, 08:04 AM
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wildblueyawner
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Default Strength of Foam for Wing Cores?

For balsa-sheeted foam wings, is there a practical way, or accepted rule of thumb, to determine the required compressive modulus of the foam to avoid bending-induced buckling of the top sheet? The wing's thickness, sheeting thickness / properties, and anticipated bending moment are known.

Thanks in advance.
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