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Appendix C: Integration of Materials Systems and Structures Development
Pages 247-250

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From page 247...
... . However, Westbrook's graph reveals an interesting principle: Judging from the slope of the usage cost trend as compared to the lines of equal market size, a significant reduction in the cost of a material will result in a larger increase in usage.
From page 248...
... Combining the fabricated costs of a structure with the value of a pound saved gives maximum average cost of the material in a particular application. For example, for an automobile where the value of a pound saved is $2, $2 times a 20 percent cost of material in relation to total cost produces an upper limit (on average)
From page 249...
... Nondestructive Testing and Quality Control General and Administrative Profit 10-20 10-20 20-40 10-20 10 +1 0 to -1 0 mates of the breakeven point for aluminum auto bodies is $~.00 per gal lon.2 Combining the values of Table 3-2 with the costs shown in Table C-1 makes it possible to generate a list of materials for various structures (see Table C-21. It should be noted that complex composites that possess remarkable mechanical properties can be equally remarkable in cost.
From page 250...
... 3P.J. McMullen, "Optimized HSLA-65 Welding Procedures for Fabrication of Naval Ship Structures," National Center for Excellence in Metalworking Technologies, Concurrent Technologies Corporation, Johnstown, PA, TR-No.

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