A unidirectional \(45^{\circ}\) off-axis E-glass/epoxy composite lamina is supported on frictionless rollers between rigid walls as shown in Figure 5.18. The lamina is fixed against displacements in the \(y\)-direction, but is free to move in the \(x\)-direction. Determine all of the lamina strains associated with the \(x, y\) axes if the lamina is heated from \(20^{\circ} \mathrm{C}\) to \(120^{\circ} \mathrm{C}\). The required properties for E-glass/epoxy are given in Tables 2.2 and 5.3.

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FIGURE 5.18 Rigid walls 2 1 45 x