Regarding contact - transient - impact

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Now I have a problem with simulating the "stopper" structure (that is, one movable and one fixed constraint). The main small exploration is whether the structure will fail after the movable structure hits the stopper, such as damage or stress exceeding the limit. Assuming the gap between the movable and fixed is 2um, then I apply a load to the movable part, and the displacement of the movable part exceeds the gap, for example, the simulation result shows that the displacement of the movable part is 20um. However, through stress extraction, it is found that the stress has not exceeded the limit, and there is also a contact force in the contact setting. So I'm wondering if increasing the penalty factor is feasible, that is, will it prevent the displacement from being so large? Or are there any other suggested methods?!!



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