Use the Ashby Diagrams to compare relative IMPORTANT properties (the properties identified in 3b for a ferrous and non-ferrous metal, polymer, ceramic and composite). Include these Ashby Diagrams and mark an X to show the comparisons. Write a reflection about the type of material that best meets each property. So for example. For the Occluder ball, two of the five properties determined to be relevant to a design constraint were density and fracture toughness. As such, I will include the Ashby diagram for these two properties. STOP!! MANDATORY CONSULTATION TIME WITH MARGIE!
Source of image (http://www.lehigh.edu/~intribos/resources.html). I would then comment on the relative properties of these materials. For example – The Composite materials offer nearly equal fracture toughness while also providing for low density (light weight)…etc.
- EXPERT TEAM – EACH TEAM MEMBER RESEARCH ONE OF THE MATERIALS AND SHARE INFORMATION WITH TEAM..PLEASE INDICATE ON YOUR SUBMISSION WHICH TEAM MEMBER RESEARCHED WHICH MATERIAL. Consider one very specific material from each class * of materials as a candidate replacement material for this application. Some of these candidates may not make sense (ex an alumina ceramic occlude ball) and that is ok. For each of these materials provide a 2-3 page summary of the general characteristics, relevant properties (only those that are relevant to the application) and information about how that material is generally manufactured or processed. Additionally, create a table that summarizes the material property data for the four materials your team researched. Include only relevant data for the properties you listed above that will help the product meet the design requirements and objectives. MAKE SURE YOUR TABLE HAS CONSISTEN UNITS (ALL SI OR ALL ENGLISH!) Place this table at the end of all of your material general descriptions so you can do a “side by side” comparison of the materials for this application. BE VERY SPECIFIC ABOUT THE MATERIALS YOU ARE CONSIDERING…EXAMPLE – NOT JUST STEEL, BUT 1018 STEEL IN THE FULLY ANNEALED CONDITION) * Please consider one ferrous material, one non ferrous material, a ceramic and a polymer. You may also include a composite material if that makes sense, but you are not required to. Your composite material can be a “wildcard” material and you can let this replace any one of the classes of materials. The material that the product is currently made of counts as one of the four materials you are considering and you are required to present your research on this material.
