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  1. enthu1980

    sequence of rigid body modes and signifiance

    Hello All, I have started learning frequency or modal analysis using FEA. I have one basic question. Will the sequence of first six rigid modes during frequency or modal analysis will always remain same? Also, what is the significance of these rigid body modes? Please bear with me for this...
  2. enthu1980

    fe-Modeling of Solid and Shell

    Hi All, I am finding difficulty in modeling of a car parts using 3D and 2D mesh. The problem comes at the interface of solid and shell elements. The reason I think is the degrees of freedom. So can anybody suggest me how to model in such a case?
  3. enthu1980

    degrees of freedom in solid

    Hi friends, I have just started learning fea. I have a basic fea question. My question is why there are 3 degrees of freedom in solid. Why there are no rotational degrees of freedom in 3D elements unlike in 2D elements.

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