NDLI: Prediction on Deflection of Z-Core Sandwich Panels in Weak Direction

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Prediction on Deflection of Z-Core Sandwich Panels in Weak Direction

Content Provider	Semantic Scholar
Author	Cheng, Chen S. Chee
Copyright Year	2014
Abstract	In a Z-core sandwich panel, the shear stiffness of the sandwich panel in the weak direction which is perpendicular to the placement of the Z-cores is much smaller than the bending stiffness because the hollow section between the two facing plates cannot sustain shear action. Because of this fact, the shear deformation of a Z-core sandwich panel under bending in the weak direction cannot be ignored. Although the flexural deformation of a Z-core sandwich panel can be calculated simply from beam theory, the shear deformation is much more difficult to calculate due to the mutual action between the facing plates and the Z-core stiffener. Considering the contact between the Z-core flanges and the facing plates, the shear deformation of a typical segment in a Z-core sandwich panel is analyzed based on compatibility conditions. By using Castigliano’s second theorem, the equations for calculating the deflection caused by shear action of a Zcore sandwich panel under bending in weak direction are obtained. The overall deflection of the Z-core sandwich panel is superposed by the deflections caused by flexural and shear actions respectively. The accuracy of the presented equations for calculating the deflection of a Z-core sandwich panel is finally verified by comparing the predicted results with experimental results reported in corresponding reference. It is found that the predicted results from the presented equation agree quite well with experimental results, which shows the reliability and accuracy of the proposed equations.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://benthamopen.com/contents/pdf/TOOEJ/TOOEJ-6-88.pdf
Alternate Webpage(s)	http://benthamopen.com/contents/pdf/TOOEJ/TOOEJ-6-88.pdf
Language	English
Access Restriction	Open
Subject Keyword	Bending - Changing basic body position Bending stiffness Castigliano's method Conflict (Psychology) Euler–Bernoulli beam theory Greater Medical Device Incompatibility Problem Quantum superposition Small Stiffener Device Component
Content Type	Text
Resource Type	Article

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