Why MESH convergence in DNVGL – RP – F112 is dangerous

Why MESH convergence in DNVGL – RP – F112 is dangerous​. Does not give consequent results​; Can easily be manipulated without breaking any ... Skiptocontent Search Close Home Services Academy R&D Showcases Catalogs GlobalReach November11,2020 4:05pm WhyMESHconvergenceinDNVGL–RP–F112isdangerous​ Doesnotgiveconsequentresults​Caneasilybemanipulatedwithoutbreakinganycoderules​Inseveralcasesgiveconfidencetobadmeshandbadresults​Adds0valueandincreaseruntime​FavoritesbadengineeringbyLowerruntimeandbetterresults  ​ Meshconvergencesetupfromthecode: Non-linearAnalysis:Ameshconvergenceisconsideredreachedwithaconvergenceerrorof5%onthetotalstrainwhenahalvingofthelocalelementsizeisapplied (ref.DNVGL-RP-F112AppendixA1.1). ANSYSSetup: RefinementDepthof2equalshalvingoftheelementsize. StartMesh1 StartMesh2 EndMesh1 EndMesh2 ConvergenceHistory Finalstrainvalue2.3832e-003 ConvergenceHistory Finalstrainvalue3.7323e-003 57%Calculationerrorbetween1and2,butbothconvergedinaccordancewithDNVGL–RP–F112 Whatdoyoudo? •Usecommonengineeringsense•EnsurethattheMESHcapturesdiscontinuities•RunsometestandlookforachangeinresultswithdifferentMESH•Forpipingitisoftenagoodstarttohave3elementsacrosswallthicknessandameshsizeofODX0.12Example:Thisgivesa6”pipeameshof20mm•Becriticalwhenevaluatingresults Shareonfacebook Facebook Shareontwitter Twitter Shareonlinkedin LinkedIn NORWAYDokkvegen10–3920Porsgrunn,NorwayEmail:[email protected]:004790185676 UNITEDSTATESOFAMERICA2311MidLn Ste.908Houston,Tx77027Email:[email protected]:0018325736168 MEXICOAv.F.C.deCuernavaca214,Ofc.310.Polanco,11550.MexicoCity.Email:[email protected]:005218113723665 Linkedin-in Facebook-f Instagram Youtube PrivacyPolicy