Elastic-Plastic Wrinkling of Sandwich Panels With Layered Cores
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Elastic-plastic wrinkling of compression loaded sandwich panels made with layered cores was studied analytically and experimentally. A core with a stiff layer near the sandwich skins can improve various properties, including wrinkling and impact strengths, with only a minor weight penalty. The 2D plane stress and plane strain bifurcation problems were solved analytically, save for a determinantal equation which was solved numerically. Experiments were performed on aluminum skin/foam core sandwich panels with different combinations of stiff and soft core materials. Good correlation between experiments and theory was obtained.
1991 ◽
Vol 7
(1-2)
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pp. 99-121
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1981 ◽
Vol 103
(1)
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pp. 46-54
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1986 ◽
Vol 23
(10)
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pp. 1847-1856
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1964 ◽
Vol 15
(10)
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pp. 1211-1223
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1988 ◽
Vol 4
(2)
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pp. 127-148
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