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2. Rigidity
Flexural rigidity is the main reason for using sandwich structures. However, pure bending stiffness is often not enough to quantify a panel's performance, since this load never occurs alone. In-plane tensile, out-of-plane compression and transverse shear behavior must not be overlooked.
2.1 Modeling
In this section, we seek to express the characteristic stiffness properties of the sandwich panel as a function of the material properties of the facings and core. Two categories of properties are used depending on the context: equivalent material properties and macroscopic plate properties. Both are substitutable and easily deduced from each other when considering panel thickness. Equivalent material properties lend themselves more easily to material comparison...
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Studies and properties of metals
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Rigidity
Resistance
Bibliography
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CES Selector 2010, Granta Design Limited, Rustat House, 62 Clifton Road, Cambridge CB1 7EG, United Kingdom
Standards and norms
- Test Method for Core Shear Properties of Sandwich Constructions by Beam Flexure. - ASTM C393 - 2006
- Practice for Determining Sandwich Beam Flexural and Shear Stiffness. - ASTM D7250 - 2006
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