Reducing the Logistics Burden for the Army After Next Doing More with Less (1999) / Chapter Skim
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C Technologies for Materials Selection and Design
C Technologies for Materials Selection and Design
Pages 183-189
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From page 183... ...
at which a design engineer can select candidate materials to feed into the modeling of the component and subsystem design and analysis. The first and most expedient opportunity is for the design engineer to have information resources about the physical properties of candidate materials, such as The National Materials Advisory Board of the National Research Council published two studies that cover important aspects of these two levels of materials engineering and design.
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From page 184... ...
materials databases or selection charts. By applying materials selection principles derived from the requirements of an application, the designer can choose the best candidate materials and the best material processing and fabrication techniques and incorporate it directly into the component design being simulated in the virtual testing environment.
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From page 185... ...
Databases might be developed for electronic materials, magnetic materials, structural materials, and so on. For the structural materials database, data could be linked with processing details, fabrication scales, product forms, and probable time frames for the availability of materials for fullscaTe production.
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From page 186... ...
cost (relative to purchase volume) and production timelines if a designer has access to this information early in the design process, he or she can make preliminary decisions concerning "design for reliability" or meeting the critical performance requirements for the application, as well as "design for manufacturability." The designer may determine that a novel material could be the enabling technology for a particular component or subsystem if particular property data were available within the time frame for making design decisions.
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From page 187... ...
(Ashby, 1992~. Even if detailed engineering data on the properties of nonconventional materials were available to designers through materials databases, designers would still need tools for comparing them in terms of the combination of properties required for a particular design (such as the "specific" properties described above for lightweight materials)
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From page 188... ...
In short, AAN system designers should interact even more closely with materials researchers and developers to ensure that the Army takes advantage of new applications and materials. Second, the Army should consider "materials by design" in terms of the emerging knowledge of how structure at all scales affects material properties.2 The goal of modeling intrinsic properties of a bulk material based solely on the physics and chemistry of atomic-scare interactions is too simplistic for most materials that are likely to be of interest.
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From page 189... ...
National Materials Advisory Board. National Research Council.
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