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simulation of contact in polymer gears

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  • simulation of contact in polymer gears

    Hi guys,
    I am attempting to simulate the contact stress in a Steel-polymer gear pair. The problem is, I am unable to ensure proper contact between the mating surfaces. I am using ABAQUS/standard. since it is a static simulation, without contact, I am getting the error "SEVERE OVERCLOSURES EXIST. CONVERGENCE UNLIKELY". Whenever I try to create manual contact, one surface penetrate the other. Could anyone tell me if it is correct to do the analysis when there is a penetration of surfaces? are the results reliable? Also is there any way to establish contact without manually adjusting the surfaces? I am stuck with this problem for a while, and any help will be greatly appreciated. Thank you.