Search results
Material Index Examples An objective defines a performance metric: e.g. mass or resistance The equation for performance metric contains material properties
The price developments of Aluminum are expressed in US$ prices converted FX rates applicable at the time when the price was valid. Aluminum price index developments are calculated from multiple separate sources of data to ensure statistical accuracy.
A Brief Overview of a Systematic Methodology Material and Shape Selection. Method. for Early Technology Screening. Design performance is determined by the combination of: Shape Materials Process Process. Underlying principles of selection are unchanged. BUT, do not underestimate impact of shape or the limitation of process. Materials. Shape.
1 sty 2013 · This chapter has shown how material property charts can help us understand, in an intuitive way, the strengths and weakness of different classes of materials for various applications, select optimal materials for design, and define vectors for development of new materials.
Density index. Characteristic number for the melt quality of an aluminum melt sample. The melt sample pair densities (Fig. 1) - the one resulting from the vacuum density test (D 80mbar) and the one from hardening under atmospheric pressure (D atm) - are related to each other on the basis of the following eq. 1:
Familiar examples are the specific stiffness, Elp, and the specific strength, (where E is Young’s modulus, cy is the yield strength or elastic limit, and p is the density), but there are many others. They are a key to the optimal selection of materials. Details of the method, with numerous examples are given in references [I] and [2].
A list of useful materials performance indices can be found in Ashby (1992). Generally, minimizing material weight (density ρ), cost C m ρ, and/or eco-impact I e ρ are key objectives for industrial products.
