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TM will definitely change for different materials. You can calculate the Tangent Modulus of the material using: TM = ('Ultimate Tensile Strength'-'Yield Strength')/('Elongation at UTS'-'Elongation at YS'). Elongation at YS = (Yield Stress)/(Young's Modulus). For Elongation at UTS; you'll...

Thank you cvan and flash; I will work with these methods and get back to you over time. Yomi; are you sure you are defining a non-linear material model for the case? This was what I was doing wrongly for some time initially; I used a bi-linear stress-strain curve eventually; (Bi-linear...

thanks for that cvan! i do believe that while your crimping/expansion analysis does infact represent the actual process quite realistically (crimpers do actually used multiple surfaces/plates!), the analysis i've performed suffices for the relatively simple model that i am looking at. i would...

I was defining the wrong material models all this while! Haha thanks for that man. Okay, even more problems (I'm an FEA newbie, forgive me!) HAve a look at this pdf I am attaching. THanks!http://files.engineering.com/getfile.aspx?folder=2ed4f2c8-4e39-437c-b5f8-82affbeff65a&file=STENTPROBLEMS.pdf

Hi, I'm trying to crimp a stent (tubular medical device) on Workbench 14.0, external diameter of the stent being 2mm and thickness being 0.081mm. I have assembled the stent and a thin-surface (diameter 3mm) around it on SolidWorks. Using 'Transient Structural', I have applied a 'Cylindrical...