Unable to assign platemat properties in commands runner

Question

Hello, 
 
 I am unable to assign properties to my plate by the commands runner. 
 If I run only that : _platemat "MaterialName" "Paroi gauche" "MaterialNumber" 0 " IsIsotropic" True "PreventPunching" True "EA" 20000000 "EI" 1666667 "nu" 0.2 "w" 0.15 
 It tells me : 
 Normal stiffness is zero! Enter proper EA value. 
 I think those parameters (EA, EI, nu, w) should be enough as it calculates automatically the thickness of the plate right? 
 thanks for any help ... 
 Tomasz

Stefanos Papavasileiou · Answer

Dear Tomasz, 
 Similarly to what is happening with soil materials, the plate also requires the definition of Gref instead. The minimum required parameters for a plate are the Gref and d . 
 You can compute the Gref using the known equations: Gref = E / (2 * (1 + nu)) 
 where: E = EA / d d = sqrt(12 * EI / EA) 
 For instance, for the case you present you can run the following: platemat ("MaterialName" "Paroi gauche") ("Gref" 8333332.500000126) ("d" 1.000000099999995) ("nu" 0.2) ("EA" 20000000) ("EA2" 20000000) ("EI" 1666667) ("w" 0.15) ("PreventPunching" True) 
 If you have more questions, please feel free to gather them and submit a service request. Then, one of our support engineers can help you in detail: https://apps.bentley.com/srmanager/ProductSupport

Unable to assign platemat properties in commands runner

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