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LDC2114: Questions about how to add materials to FEMM4.2 Library Materials at Excel_FEMM_vlp28

Part Number: LDC2114

Hello, Dear Ms.Jones

I ask you about FEMM4.2 Library Materials with Excel_FEMM_vlp28.

Please refer to attached file.

Questions about how to add materials to FEMM4.2 Library Materials.docx

It seems quite difficult to add a new magnetic material to the library.
I don't know if I can ask you so far, but if you know, please let me know.

Best regards

  • Hello,

    It's actually fairly easy to add a new conductive material to the model library. Navigate to Properties -> Materials. In the Property Definition menu, click on “Add Property.” The Block Property dialogue box should open. Here, specify a Linear B-H relationship and set the relative u_r and u_z to 1. Enter the electrical conductivity, name the material, and select "OK." The new material will exist in this current model. There's likely a way to permanently add the material to the material library, but I'm not sure how to do so. The FEMM website may have some information.

    Yes, CuTraces is a new material created for this FEMM model. It's specifically for the coil and accounts for the calculated resistance of the real coil. I'm not sure why air is included as a material three times, but this won't impact the simulation.

    You do not need to edit the B-H curve if you select "Linear B-H relationship."

    Best Regards,

  • Hello, Ms.Jones

    Thank you for your quick reply.

    I understood about question 1 & 2.

    Sorry to bother you, Would you please answer question 3?

    Please refer to Question 3 in the attached document at the previous request.

    Adding a non-magnetic material as an additional material is easy, but in the case of a magnetic material, the information input of “B-H curve” is required and it seems that addition is not easy.

    ----------------------------------

    Question 3 How to set Block Property of magnetic material

     

    Although related to Question 1, in the case of magnetic materials, it seems necessary to enter B-H Curve in the Block Property setting. How is this set? Please tell me how to add nickel as an example.

    ------------------------------

     

    Best regards

    "

  • Hello,

    Unfortunately I haven't needed to add a magnetic material to the FEMM library, so I haven't entered a B-H curve before. The FEMM tutorial likely has some resources that can help you.

    Best Regards,

  • Hello, Ms.Jones


    Thank you for your reply.
    I’m sorry for bothering you.
    I will try to find a way for myself.
    Please let me know if you find a way in the future.


    Best regards