Page 164 - Mechanics Analysis Composite Materials
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Chapter 4. Mechanics of a composite layer 149
(4.67)
The inverse form of these equations is:
(4.68)
The corresponding transformation for strains follows from Eqs. (2.21) and (2.27),
].e.,
(4.69)
or
(4.70)
To derive constitutive equations for an anisotropic unidirectional layer, we
substitute strains, Eqs. (4.69), into Hooke's law, Eqs. (4.56), and thus obtained
stresses - into Eqs. (4.68). The final result is as follows: