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Chapter_7 - Chapter 7 Multiple Constraints and Conflicting...

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Chapter 7 Multiple Constraints and Conflicting Objectives Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby
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Multiple Constraints and Conflicting Objectives The selection of a material or process must satisfy several often conflicting constraints; a second class of problem involves more than one objective, and here the conflict is more severe Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby
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Strategies for tackling selection with multiple constraints and conflicting objectives Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby Figure 7.1
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Selection With Multiple Constraints Nearly all material selection problems are overconstrained, meaning there are more constraints than free variables Selection involves identifying the constraints and the objective and applying the following steps: Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby
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Materials Selection in Mechanical Design, 4th Edition, © 2010 Michael Ashby Figure 7.2 The screening stage imposes constraints on properties, on requirements such as corrosion resistance, or on the ability to be processed in a certain way The candidate materials that survive the screening stage are ranked using property charts
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