R-Mesh

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Whenever I use the R-Mesh option for Geometry meshing, the mesh quality I get is seems very unacceptable (as I perform quality check). But the solver (Radious_One Step) provide results without any flaw in its computations.

However, when I perform Automesh, followed by quality check (warpage, Aspect Ratio, Skew, jacobian, Mini. length, angles, etc; without any change in other steps (tonnage, material,etc), the solver fails to produce results as it stumbles with an error (Radioss/Optistruct Error 20205) in the process.

 

Does this meshing (with probable unacceptable meshing quality) through R-mesh panel (without any quality refining) affect the accuracy of the results?

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Answers

  • Rahul_P1
    Rahul_P1
    Altair Employee
    edited December 2014

    R-mesh is a rigid mesh where many Tria elements are created.  Its suitable for meshing tools and not blank. HF R-mesh is a automated meshing without any control over the quality.

    HF is not stringent with mesh quality hence you will get decent results even with poor mesh quality.  That said it is always suggested to mesh the blank with good quality mesh. For best results i would suggest to use Auto mesh with Quads only option selected for mesh type. All quad mesh will ensure proper unfolding of the blank there by giving accurate flat blank shape.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited December 2014

    Hi,

     

    Can I ask whether is it a good practice to mesh both blank and tools with automesh instead of R-mesh?

     

    Thank you very much.

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