Using only the linear part of the moisture absorption curve for a temperature of 77°C in Figure 5.12, and assuming a thickness of 2.54 mm, estimate the diffusivity Dz. Compare this value with the...

Using only the linear part of the moisture absorption curve for a temperature of 77°C in Figure 5.12, and assuming a thickness of 2.54 mm, estimate the diffusivity Dz. Compare this value with the estimate from Figure 5.11

For the composite properties and environmental conditions described in Examples 3.6, 4.7, and 5.3, determine the hygrothermally degraded values of the longitudinal and transverse tensile strengths. Compare with the reference values of these strengths from Example 4.7.

EXAMPLE 4.7

Determine the longitudinal and transverse tensile strengths of the carbon/epoxy material described in Examples 3.2, 3.3, and 3.6 if the tensile strengths of fiber and matrix materials are 2413 and 103 MPa, respectively