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Can Anybody Plz Direct Me On How To Properly Set Up Study Module For Mechano-Electrochemical Coupling In COMSOL?
Posted Oct 4, 2020, 1:51 p.m. EDT Corrosion & Corrosion Protection, Electrochemistry, Structural Mechanics Version 5.5 0 Replies
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I am trying to reproduce some results in a published work entitled " A finite element based model for prediction of corrosion defect growth on pipelines". The simulation was possible through sequential coupling when static studies are performed as presented by COMSOL case www.comsol.co.in/model/stress-corrosion-39121 . The issues is when looking at the long life of the defect (time dependent study). I have tried to do one study, with three steps: step1: stationary solid mechanics (solves for only solid mechanics) step2: current distribution initialization ( solves for secondary current and deformed geometry). step3: time dependent which solves for the following 1. solid mechanics; 2. secondary current distribution; 3. deformed geometry. I was never able to predict an increase in the stress in the location of defect center (as shown in the paper). So any help/guidance would be appreciated for solving this issue? Hint! I my be setting up the simulation wrong But, just to add up, i keep getting inverted meshing element no matter what mesh i use when using time dependent study.
I can share my simulation if someone is willing to help! Regards,
Hello Hessein Ali
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