Material manager

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Material manager.

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In this video, we will review material properties and create a custom material.

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In Fusion 360, we want to carry on with our motorcycle rear set model prep.

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If you had any difficulty in the model preparation for this bracket, then you can also upload the supply dataset, motorcycle rear set - model prep V6.

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From here, we want to begin setting up our simulation study and the way we do this is to make sure that we have the appropriate materials first,

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and then work from left to right, setting up our constraints and loads, our contact sets, making any changes to the mesh and then solving the study.

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So first, we'll expand the materials and take a look at the study materials.

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We have two specific bodies inside of this design and these parts are aluminum 6061 and steel.

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You'll notice that the component name is frame mount and peg pivot.

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This is exactly what we see in both simplify and the design work space.

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Then we have a section called study materials.

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The study materials are based on the materials applied at the design level but we can modify them here under the study materials category.

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For example, our frame mount is 6061, that's what we set up in the design.

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But we left the peg pivot as steel.

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If we need to change this material, we can modify it by using this dropdown and scroll to an appropriate material.

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If we stroll down to steel, we can take a look at a high strength structural steel.

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We also have the option to determine the safety factor whether it's based on yield or the ultimate tensile strength.

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From here if we have a material selected for example the high strength structural steel, we can also expand the properties.

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We can take a look at the material and then you'll notice that the material that we're using has advanced properties,

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and we need to go to the material properties to view it.

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If we take a look at the aluminum 6061, it doesn't have those same advanced properties.

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So not all materials will be able to be reviewed here,

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but it's important to validate the material properties if you're not going to make any adjustments.

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For example this aluminum 6061 has a Young's Modulus of 68.9 G. P. a.

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It's Poisson's ratio is 0.33 and its yield strength is 275 M. P. a.

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We can see these values clearly here but if we want to review the high strength structural steel,

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we need to go to a different area that can be found in the material properties.

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We can do this in either material properties or we can go to manage physical materials.

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When we go to manage physical materials.

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The dialogue is docked on the right hand side but I'm going to bring it to the left hand side of my screen and I want to expand it to the right.

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This allows me to select a material and then review its properties on the right hand side.

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We're not worried about the identity or the appearance of the material.

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We're really focused on physical but it is important to note that these materials from the Fusion 360 library shows some specific information,

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such as the A. S. T. M. A. 992 Grade 50 as well as some comments about the stress strain curve.

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We navigate to physical and we take a look at the basic mechanical and strength properties.

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We can see that we have our Young's Modulus, our Poisson's ratio and we have our yield and tensile strength.

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If we move over to advanced properties, you can see that we have the type of deformation.

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Because we are talking about a linear static stress study,

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we want to make sure that we are using an isotropic material but notice that its behavior in this case is nonlinear.

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So if we take a look at the graph that's associated with us,

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then we can follow along with those nonlinear type deformations that happen above a certain point.

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You'll notice that a lot of this is greyed out and it's not able to be modified.

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In order for us to modify a property, we need to make sure that we can edit.

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We can edit materials that are in our document materials or we can edit materials that are in our favorites.

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If it's inside of the document materials, we simply need to select this pencil icon,

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and then it'll open up the properties and allow us to make adjustments.

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If we take a look at this graph and the data, we can see exactly how it's expected to perform in the linear range,

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and then we can see how it's expected to perform after plastic deformation and when it gets close to its yield.

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If we want to make any adjustments, it's always a good idea to create a copy of a material.

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For example, we can right click on this high strength structural steel, we can add it to our favorites.

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By selecting our favorites we can find that high strength structural steel,

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and then we can make sure that we use that high strength structural steel as a copy.

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So if we right click, we can duplicate it and the duplicate will simply have a one after it.

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But we want to make sure that we do rename this.

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If we select the identity, notice that the name at the top is greyed Out.

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For this high strength structural, if we right click, we have the ability to rename it here.

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Inside of the brackets, I'm simply going to say Mod for mod noting that I have modified it.

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We're not going to be using this modified material,

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but it's important to understand the process as not all materials will give you the correct properties directly from the library.

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And I don't mean to say that the materials in the library are labeled improperly.

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It's just that oftentimes we will have a custom material or data from a manufacturer on a specific batch of material,

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that we want to make sure that we use for our simulations.

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So let's select Edit on our copy and let's go into its physical properties.

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First under basic, we want to make sure that we make adjustments to the Young's Modulus.

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In this case, we're going to be looking at 250 G. P. a.

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And the Poisson's ratio instead of .29 is going to be .31.

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From here I'm going to move on to my advanced properties and note that the material model is using an isotropic model instead of hyper elastic,

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but we want to use it in only the linear range.

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Know that there are no advanced physical properties for the above settings and the basic properties will be used.

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This is exactly what we want since we're talking about a linear static stress study.

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So if we want to bring in those structural steel properties such as the 250 GPa for the Young's Modulus and use those in our study,

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then we want to make sure that we set up a material that makes use of those properties and in this case not use advanced properties.

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I'm going to apply those changes and then I'm going to select cancel and close out my material properties.

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Then I want to go back to my study materials.

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I'm going to change my high strength structural steel but this time I'm going to use my high strength structural steel Mod.

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If I expand the properties because we're no longer using those advanced nonlinear properties, we can now see all the data.

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The Young’s Modulus has been increased to 250 from 200 and Poisson’s ratio is now .31.

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For our study, we can leave this modified material as our focus is really going to be on the aluminum frame mount,

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but it is just important to understand and note where these properties are coming from and how we can make adjustments to them.

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At this point, let's make sure that we do save this design before moving on.