Carbon-Related Materials by Unknown

Carbon-Related Materials by Unknown

Author:Unknown
Language: eng
Format: epub
ISBN: 9783030442309
Publisher: Springer International Publishing


4.3.2.1 Equivalent Core: Volume Fraction Approach

Load is assumed evenly distributed in the web core , so that stiffness can be smeared across an equivalent single plate layer. The equivalent material properties of Young’s modulus (E∗) and shear modulus (G∗) can be expressed in terms of volume fraction factor (α).

(4.8)

where E is the Young’s modulus, G is the shear modulus, Vc is the total volume of the internal core structure space, and Vw is the total volume of web columns. Therefore, the three equivalent stiffness matrices, Aij,web equiv, Bij, web equiv, and Dij,web equiv, are computed for a single equivalent plate layer.



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