Shear Area Az

Shear Area A_z

A_{z} = \frac{I_{y}^{2}}{\int_{A^{*}} {(\frac{S_{y}}{t^{*}})}^{2} d A^{*}}

I_y	Second moment of area related to the axis y
S_y	First moment of area related to the axis y
t*	Effective element thickness for the shear transfer
A*	Surface area based on the effective shear thickness t*

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