https://forums.autodesk.com/t5/fusion-design-validate-document/simulating-with-aluminium-5083/m-p/7980834#M166148 Absolutely. That's why it's best to base it on actual material specs when you're to that point.<BR /><BR />I'm still a bit surprised they're that high regardless. Fri, 04 May 2018 16:58:07 GMT Anonymous 2018-05-04T16:58:07Z https://forums.autodesk.com/t5/fusion-design-validate-document/simulating-with-aluminium-5083/m-p/7980322#M166145 <P>In the material properties for cold formed 5083 aluminium the data in fusion says:</P><P>&nbsp;</P><P>Yield Strength: 280+ Mpa</P><P>Ultimate tensile strength: 375+ Mpa</P><P>These values are closer to structural steel and a bit of online research gives numbers of 200 and 270 respectively. Are the values in Fusion correct? Has anyone else ever noticed this?</P> Fri, 04 May 2018 14:00:59 GMT https://forums.autodesk.com/t5/fusion-design-validate-document/simulating-with-aluminium-5083/m-p/7980322#M166145 Ex_Machina_Engineering 2018-05-04T14:00:59Z https://forums.autodesk.com/t5/fusion-design-validate-document/simulating-with-aluminium-5083/m-p/7980775#M166146 Thats does seem high but with any FEA software, it is best to create custom materials if you know the properties of what you will be using.<BR /><BR />The big difference between steel and aluminum is the elastic modulus. Steel should be about 3x that of aluminum. If you are running a linear elastic simulation the stresses will be accurate regardless of what your yield strength is if the modulus is correct. Fri, 04 May 2018 16:36:19 GMT https://forums.autodesk.com/t5/fusion-design-validate-document/simulating-with-aluminium-5083/m-p/7980775#M166146 Anonymous 2018-05-04T16:36:19Z https://forums.autodesk.com/t5/fusion-design-validate-document/simulating-with-aluminium-5083/m-p/7980814#M166147 True, but safety factors and shape optimization will be all wrong...<BR /> Fri, 04 May 2018 16:49:35 GMT https://forums.autodesk.com/t5/fusion-design-validate-document/simulating-with-aluminium-5083/m-p/7980814#M166147 Ex_Machina_Engineering 2018-05-04T16:49:35Z https://forums.autodesk.com/t5/fusion-design-validate-document/simulating-with-aluminium-5083/m-p/7980834#M166148 Absolutely. That's why it's best to base it on actual material specs when you're to that point.<BR /><BR />I'm still a bit surprised they're that high regardless. Fri, 04 May 2018 16:58:07 GMT https://forums.autodesk.com/t5/fusion-design-validate-document/simulating-with-aluminium-5083/m-p/7980834#M166148 Anonymous 2018-05-04T16:58:07Z