For the IM-9/8551-7 carbon/epoxy composite rod design of Problem 3.3 in Chapter 3, what would be the increase in the longitudinal tensile strength compared with that of the original 6061-T6 aluminum alloy design?

Problem 3.3

Explain qualitatively why sandwich structures (Figure 1.5) have such high flexural stiffness-to-weight ratios. Describe the key parameters affecting the flexural stiffness-to-weight ratio of a sandwich panel.

Transcribed Image Text:

Film adhesive bonds facings to core High strength composite laminate facings Low density honeycomb core FIGURE 1.5 Composite sandwich structure.