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  1. 191178

    rotating problem in marc-mentat

    Hallo everybody, I have simulation of rotation disk under contact with a conveyer bell with Marc-mentat. But I dont'n know how to apply the rotation to the disk. If anyone has examples for the rotating disk or similarity problem, please show me how to find it or the links to . Thanks in advance
  2. 191178

    surface roughness & friction

    Hallo everybody, I have a little question: if I know the value of surface roughness (i.e value of Ra)can I derive the friction coefficient (like coulomb friction). I have to use some tables or formulations? Please show me how to find it(or the links to similar problems). Thanks in advance.
  3. 191178

    hardness Vickers and stress

    Hallo everybody, I have one question: if i know the Vickers hardness of material, how can i find the relation with stress and strain? thanks for advice

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