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Plane stress. z components of stress are zero . Thin plates We use plane stress for analyzing stresses in the skins of wings. But they are subject to pressure loads, hence . How come?. It is not plane strain!. The strain in the z direction is not zero. We had . So - PowerPoint PPT Presentation
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Plane stress
Plane stress
It is not plane strain!
Hookes law
Single isotropic layerUniaxial loading
Stress and strain
Symmetrically laminated layers
A matrixSubstituting from Hookes law get
For isotropic layers
Effective moduli
Example 2.2.1